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Service Diagnosis and Measurement Manual
MG4 Electric
The Service Diagnosis and Measurement Manual provides the specification, system introduction,
service procedure and adjustment information of the new MG4 Electric vehicles.
After mastering the content of this manual and materials in the service bulletins of the SAIC
Motor Passenger Vehicle Co., the technicians of Authorised Repairers of SAIC Motor Passenger
Vehicle Co. can provide better service for MG4 Electric vehicle owners.
For relevant information about product brands, part numbers or special tools mentioned in this
manual, we recommend contacting SAIC Motor Passenger Vehicle Co.
SAIC Motor Passenger Vehicle Co.
All Rights Reserved.
Information is due in April, 2022
Without prior written approval from SAIC Motor Passenger Vehicle Co., no part of the manual
shall be reproduced, stored in retrieval system or transmitted in any form or by any means
(including but not limited to electronic, mechanical, photocopy and recording). The statement
above applies to all texts, illustrations and tables.
Cover .................................. 1 Symptom Table ....................... 55
Fluid Leak .......................... 56
General Information ............. 15
Abnormal Sound in Transmission ...... 57
Strategy Based Diagnostics ................ 15 Power Electronic Box (PEB) ............ 58
Description on Diagnostic Symptom Table ....................... 58
Procedure ............................. 15
Fluid Leak .......................... 59
Diagnostic System Check - Vehicle...... 16
Vehicle Cannot Be Powered On ........ 60
Basic Methods of Circuit
Inspection ............................ 17 Vehicle Emergency Power-Off ......... 62
Diagnosis Repair Verification ......... 23 PEB Cannot Be Connected to
Diagnostic Device ................... 64
Vibration ................................. 24
Drive Motor ........................... 66
Vibration Analysis .................... 24
Symptom Table ....................... 66
Diagnostic Aid for Vibration .......... 26
Fluid Leak .......................... 67
Noise ..................................... 29
Vehicle Unable to Run ............... 68
Air/Wind Noise ........................ 29
Power and Control System .................. 70
Squeak and Click ...................... 30
High-voltage Battery Pack and Its
Soap Suds or Bubble Test ............ 30 Charging System ....................... 70
Air Pressure Test ................... 30 Symptom Table ....................... 70
Tracing Powder or Chalk Test ........ 31 Slow Charging Unavailable ........... 71
Water Leaks ............................... 32 Charging Connector Cannot be
Water Leak Test Preparation ........... 32 Plugged In Place .................... 73
Dust Leaks .......................... 33 Charging Connector Cannot be
Water Hose Test ..................... 34 Unplugged ........................... 74
Air Hose Test ....................... 34 Heating, Ventilation, and AC .............. 75
Precaution Information .................... 35 Leakage Detection ................... 75
General Precautions ................... 35 Symptom Table ....................... 77
Safety Instructions ................... 36 A/C Cooling Capacity
Insufficient ........................ 80
Environmental Precautions ............. 37
A/C Heating Capacity
Fuel Handling Precautions ............. 39 Insufficient ........................ 82
Electrical Precautions ................ 40 Compressor Inoperative .............. 84
Supplementary Restraint System Compressor Cannot Automatically
Precautions ........................... 42 Stop ................................ 86
Air Conditioning System Compressor Clutch Intermittent
Precautions ........................... 44 Engagement .......................... 88
Precautions for High Voltage .......... 45 Abnormal Refrigerant Pressure ....... 90
Symptom-based Diagnosis ......... 47 A/C Condenser Leakage ............... 92
Air Output Insufficient ............. 93
Cooling System ............................ 47
Blower Inoperative .................. 95
Symptom Table ....................... 47
Noise ............................... 98
Cooling Fan Running All the Time...... 48
Air Conditioning System Peculiar
Cooling Fan Not Working Well/Not
Smell ............................... 99
Working ............................. 49
Steering System .......................... 100
High-voltage Battery Pack
Overheated .......................... 50 Symptom Table ...................... 100
High-voltage Battery Pack Cooling Shaking When Braking ............... 101
System Leakage ...................... 53 Direction Deviation from
Transmission/Transaxle .................... 55 Centre ............................. 102
Electric Drive Transmission ........... 55 Vehicle Off-track .................. 103
2
Steering Wheel Vibration During Seats ................................ 147
Steering ........................... 104 Symptom Table ...................... 147
Poor Steering Wheel Front Seat Manual Adjustment
Return-to-Centre ................... 105 Failure ............................ 148
Noises from Steering Gear .......... 106 Front Seat Power Adjustment
Noises from Steering Column ........ 107 Failure ............................ 149
Hard Steering ...................... 108 Front Seat Heating Failure ......... 151
Suspension System ........................ 109 Exterior Fittings ........................ 153
Front Suspension ..................... 109 Wiper and Washer ..................... 153
Symptom Table ...................... 109 Symptom Table ...................... 153
Vehicle Off-track .................. 110 Front Wiper Inoperative ............ 155
Abnormal Driving Track (The vehicle Front Wiper Fails to Wipe Clean...... 158
can not keep straight) ............. 112 Front Wiper Fails to Stop .......... 159
Abnormal Wear in Tyres ............. 113 Abnormal Noise/Shake During Front
Hard Steering ...................... 115 Wiper Operation .................... 160
Poor Steering Wheel Front Wiper Fails to Return to
Return-to-Centre ................... 116 Original Position .................. 161
Vehicle Swings During Driving ...... 117 Front Washer Sprays
Vehicle Jitters During Driving...... 118 Insufficiently ..................... 163
Acceleration Deviation ............. 119 Front Washer Inoperative ........... 164
Abnormal Noises During Driving...... 120 Lighting System .......................... 166
Rear Suspension ...................... 122 Interior Light ....................... 166
Symptom Table ...................... 122 Symptom Table ...................... 166
Vehicle Off-track .................. 123 Front Reading Lamp Not
Illuminated ........................ 167
Abnormal Sound ..................... 126
Rear Reading Lamp Failure .......... 168
Body Shaking ....................... 128
Vanity Mirror Lamp Not
Body Tilted ........................ 129 Illuminated ........................ 169
Brake System ............................. 130 Trunk Lamp Not Illuminated ......... 171
Service Brake ........................ 130 Exterior Lighting .................... 173
Symptom Table ...................... 130 Symptom Table ...................... 173
Braking Deviation .................. 132 Low Beam Not Illuminated ........... 178
Brake Judder ....................... 133 Low Beam Always On ................. 180
Brake Pedal Sinks Rapidly .......... 134 High Beam Not Illuminated .......... 181
Brake Pedal Low or Soft ............ 135 High Beam Always On ................ 183
Brake Locked and ABS Starts Headlamp Leveling Failure .......... 184
to Work When Brake is Slightly
Depressed .......................... 137 Front Position Lamp Not
Illuminated ........................ 186
Excessive Brake Pedal Travel ....... 138
Daytime Running Lamp Not
Step On the Pedal and Hold, the Illuminated ........................ 188
Pedal Sinks Slowly ................. 139
Hazard Warning Lamp Not
Brake Drag ......................... 140 Illuminated ........................ 190
Poor Effect of Brake Boost ......... 142 All Hazard Warning Lamps Keep
Abnormal Sound in Brake System...... 143 Flashing ........................... 192
Parking Brake ........................ 145 Reverse Lamp Not Illuminated ....... 194
Symptom Table ...................... 145 Reverse Lamp Always On ............. 196
Poor Effect of Parking Brake ....... 146 Brake Lamp Not Illuminated ......... 198
Interior Fittings ........................ 147 Brake Lamp Always On ............... 200
3
Rear Fog Lamp Not Illuminated ...... 202 All Functions of Remote Key
Rear Fog Lamp Always On ............ 203 Fail ............................... 244
Position Lamp Not Illuminated ...... 204 Charging Port Release Failure ...... 245
Position Lamp Always ON ............ 206 Single Door Opening from Inside
Failure ............................ 246
High-mounted Stop Lamp Not
Illuminated ........................ 208 Single Door Opening from Outside
Failure ............................ 247
High-mounted Stop Lamp Always
On ................................. 210 Tailgate Release Failure (Manual
Open Failure) ...................... 249
License Plate Lamp Not
Illuminated ........................ 212 Tailgate Release Failure (Remote
Key Open Failure) .................. 252
License Plate Lamp Always On ....... 214
Theft Deterrent System ............... 254
Front Direction Indicator Lamp Not
Illuminated ........................ 215 Symptom Table ...................... 254
Front Direction Indicator Lamp Door Ajar Warning Function
Always On .......................... 217 Unavailable When Locking ........... 255
Side Direction Indicator Lamp Not IMMO Triggered, Horn
Illuminated ........................ 218 Inoperative ........................ 257
Side Direction Indicator Lamp Parking Assist System ................ 258
Always On .......................... 220 Symptom Table ...................... 258
Rear Direction Indicator Lamp Not No Warning Given for Obstacle When
Illuminated ........................ 222 Parking ............................ 259
Rear Direction Indicator Lamp Warning Given for No Obstacle When
Always On .......................... 224 Parking ............................ 261
Door System .............................. 226 Inaccurately-Measured Distance from
Four Doors ........................... 226 the Obstacle When Parking .......... 262
Symptom Table ...................... 226 Rear View Camera Not Display ....... 263
Single Power Window Passive Entry and Passive Start
Inoperative ........................ 227 System ............................... 265
Window Regulator Stuck ............. 229 Symptom Table ...................... 265
Front Door Opening Inside Keyless Unlocking Function
Failure ............................ 230 Failure ............................ 267
Front Door Opening Outside Keyless Entry Coverage
Failure ............................ 231 Abnormal ........................... 269
Rear Door Opening Inside Keyless Locking Function
Failure ............................ 233 Failure ............................ 270
Rear Door Opening Outside Vehicle Cannot Start ............... 273
Failure ............................ 234 Vehicle Cannot Stall ............... 276
Bonnet ............................... 236 Vehicle Cannot Stall Without Long
Symptom Table ...................... 236 Pressing ........................... 277
Charging Port Release Failure ...... 237 Trunk Lid Keyless Open Failure...... 278
Manual Tailgate ...................... 238 Body System .............................. 281
Symptom Table ...................... 238 Horn ................................. 281
Tailgate Release Failure (Manual Symptom Table ...................... 281
Open Failure) ...................... 239 Horn Keeps Honking ................. 282
Tailgate Release Failure (Remote Horn Inoperative ................... 283
Key Open Failure) .................. 241 Abnormal Horn Sound (Cracking
Safety and Protection .................... 243 Voice, Lack of Treble / Bass) ...... 285
Vehicle Access System ................ 243 Driver Occupancy Sensor System ....... 286
Symptom Table ...................... 243 Symptom Table ...................... 286
4
The driver cannot be detected ...... 287 DTC Troubleshooting Process
Driver Information and Entertainment Description .............................. 315
System ................................... 288 Troubleshooting Process
On-board Telephone, Entertainment Description ........................ 315
System and Navigation System ......... 288 FTB List ................................. 317
Symptom Table ...................... 288 FTB List ........................... 317
Failure to Start Up, Function Integrity Inspection of Network .......... 320
Failure ............................ 289 Integrity Inspection of Comfort HS
No or Unclear Sound During CAN Network ........................ 320
Multimedia Playing or Radio Working Integrity Inspection of Power HS
(with normal display, operation, CAN Network ........................ 321
multimedia playing or radio station
search) ............................ 291 Integrity Inspection of Chassis HS
CAN Network ........................ 322
Poor or No Radio Signal Received
and Radio Station Search Integrity Inspection of Driver
Unavailable ........................ 292 Assistance HS CAN Network .......... 323
Poor or No GPS Signal Received...... 293 Shifter Control Unit (SCU-E) ............. 324
Display Error or No Display ........ 294 DTC Index ............................ 324
Bluetooth Connection Failure ....... 295 List ............................... 324
The Other Side Cannot Hear You Diagnosis Information and
When Talking on the On-board Procedure ............................ 326
Telephone .......................... 296 C16B4, P17BA, U16DB and U17A9 ...... 326
Unable to Hear Each Other P17A2, P17A3 and P17A4 ............. 328
When Talking on the On-board P17BB and P17BC .................... 329
Telephone .......................... 297
U0073 .............................. 330
Display and Instrument ............... 298
U0128, U0146 and U0293 ............. 332
Symptom Table ...................... 298
U1562U1563 ....................... 334
Instrument Pack Blank Screen/All
Indicator Lamps Off ................ 299 Electric Parking Motor Control Unit
(EPMCU) .................................. 337
Speedometer Indicating
Improperly ......................... 300 DTC Index ............................ 337
Power Meter Indicating List ............................... 337
Improperly ......................... 302 Diagnosis Information and
Electricity Meter Indicating Procedure ............................ 338
Improperly ......................... 304 C1901, U1562 and U1563 ............. 338
Power and Signal Distribution ............ 306 C1930, C1933 and C1934 ............. 339
Data Communication ................... 306 C196D, C196E and C196F ............. 341
Symptom Table ...................... 306 U0073 .............................. 343
No Power Supplied to Scan Tool...... 307 U0103, U0122, U0146, U0293, U1600
Scan Tool Cannot Communicate with and U1601 .......................... 344
Bus ................................ 308 U2021 .............................. 346
Combined Charging Unit (CCU) ......... 309 Intelligent Motion Control Unit
Symptom Table ...................... 309 (IMCU) ................................... 347
Fluid Leak ......................... 310 DTC Index ............................ 347
Low-voltage Battery Feed ........... 311 List ............................... 347
High Voltage Interlock (HVIL) Diagnosis Information and
Signal Lost, High Voltage Power Procedure ............................ 358
Cannot be Supplied to Vehicle ...... 313 P0A1B, P1C23, P1C2C, P1C2D, P1C3E,
P1C40, P1C44, P1C50, P1C52, P1C59,
DTC Troubleshooting ............ 315 P1C60, P1C73, P1C77, P1C78, P3189,
P3193, P31AD and P31AE ............. 358
5
P0A5E, P0A61, P0A64, P0A8E, P1C3F, P1DCE, P1DE1, P1DE3, P1DE4, P1DE5,
P1C63, P1C64, P1C66, P1C67, P1C69 P1DE6, P1DE7, P1DE9, P1DEA, P1DEC,
and P1C6A .......................... 361 P1DED, P1DEE, P1DEF and P1DF0 ...... 408
P1620, P1B41 and P1B42 ............. 363 P1FB4, P1FB5, P1FB6 and P1FB7 ...... 410
P1621, P1ABF, P1AC0, P1BB0, P1BB9 P3040, P3041, P3042 and P3043 ...... 412
and P1BBA .......................... 365 P3103, P310C, P3126, P3127, P3132,
P1622, P1B07, P1BE0, P1BE1, P1BE6, P3133, P313A, P3169, P316A, P316D
P1BED, P1BEE, P1BF9, P1BFA, U0428, and P3172 .......................... 414
U0447, U0452, U045A, U1111, U1113, P3104, P3105, P3106, P3107, P3108,
U1115, U130A, U1411, U1908, U1912, P3146, P314A, P318A, P318B, P318C,
U195B and U197E .................... 368 P318D, P3197, P3199, P319A and
P1623, P1624, P1626, P1BC0, P1BC1, P319D .............................. 416
P1BC2, P1BE4, P1C53, U0595 and P3182, P3183, P3184, P3185, P3186,
U16D3 .............................. 371 P3187, P3188, P318E, P318F, P3190,
P1627, P1628, P1B40, P1B43 and P3191, P3194 and P3198 ............. 419
P3066 .............................. 373 P319E, P31A0, P31A1, P31A3, P31A5,
P1A00, P1B02, P1B03, P1B1B, P1B1C, P31A6, P31A7 and P31A8 ............. 421
P1B1D, P1B1E, P1B70, P1B79, P1B90, P31B1, P31B2, P31B3, P31B4, P31B5,
P1C7F, P30BC, P30BD, U0405, U1269, P31B6, P31B7 and P31B8 ............. 423
U1671 and U19D6 .................... 375
U0073, U0074, U0075 and U0103 ...... 425
P1B04 and P1B05 .................... 378
U1296, U1415, U175F, U1782, U19D6,
P1B06, U0151, U020C and U0404 ...... 380 U1A12 and U1A4E .................... 427
P1B08, P1A3B, P1A5B and P1A5C ...... 382 U1562, U1563, U2001, U2004, U2018
P1B13, P1B15, P1B17 and P1B82 ...... 384 and U2020 .......................... 429
P1B19, P1B25, P1B31, P1B32 and Front Detection Radar (FDR) .............. 431
P1B72 .............................. 386 DTC Index ............................ 431
P1611, P1612, P1614, P1B1F, P1B74, List ............................... 431
P1B75, P1B76, P1B78, P3055, P3056,
P3057, U0146, U0147, U0546, U0599, Diagnosis Information and
U1115, U1416, U1417, U1418 and Procedure ............................ 433
U141B .............................. 388 B19AB .............................. 433
P1625 and P1B30 .................... 391 B19AC .............................. 434
P1B69, P1B6A, P1B6B, P1B6C, P1B6D B19C7 .............................. 435
and P1B6F .......................... 392 B19C8 .............................. 436
P1B8E, P1B8F, P1BA0, P1BA1, P1BA2, B19C9 and B19CA .................... 437
P1BA3, P1BA4, P1BA5, P1BA6, P1BA7,
P1BA8, P1BA9, P1BAA, P1BAB, P1BAC U0073, U0146 and U0447 ............. 438
and P1BAD .......................... 394 U0074, U1264 and U130A ............. 440
P1BE7, U0122, U0146, U16B8 and U0416, U0417, U0420, U0422, U0423,
U1756 .............................. 396 U0428, U0452, U0546, U0594, U1415,
P1C75, P1C76, P1C80, P1C81, P1C82, U1416 and U1417 .................... 442
P1C83, P1C84, P1C85, P1C9A and U1021 and U1321 .................... 444
P1CC4 .............................. 398 U1562 and U1563 .................... 446
P1C8C, P1C8D, P1C8F, P1C98, P1D19, U2000, U2003 and U0300 ............. 448
P1D1B, P1D1C, P1D1D, P1D25, P1D2C,
P1D41 and P1D42 .................... 400 Front View Camera Module (FVCM) .......... 449
P1CC1, P1CC2, P1CC3, P1CC5, P1CC6, DTC Index ............................ 449
P1CC7 and P1CC8 .................... 402 List ............................... 449
P1D11, P1D12, P1D13, P1D3E, P1D5C, Diagnosis Information and
P1D78, P1D79, P1D7A and P1D92 ...... 404 Procedure ............................ 450
P1DC0, P1DC1, P1DC2, P1DC3, P1DC4, B1962 .............................. 450
P1DC5, P1DCB, P1DCC and P1DCD ...... 406 B1963 .............................. 451
B1977 .............................. 452
6
B197A, B197B and B197C ............. 453 B2344, U234B and U2010 ............. 499
U0073, U0146 and U0447 ............. 454 B2345 and B234D .................... 500
U0074, U1265 and U130B ............. 456 B2348, B2349, U0100, U0126 and
U0416, U0420, U0422, U0423, U0428, U0155 .............................. 501
U0452, U0546 and U0594 ............. 458 B234A, U2210, U2211 and U2262 ...... 503
U1021 and U1321 .................... 460 U0073 and U0146 .................... 505
U1562 and U1563 .................... 462 U1264 and U1265 .................... 507
U2200, U2230 and U2262 ............. 464 U1562 and U1563 .................... 508
Left Hand Rear Drive Assist Module U2000, U2002, U2004 and U2007 ...... 510
(LHRDA) .................................. 466 Gateway Module (GW) ...................... 511
DTC Index ............................ 466 DTC Index ............................ 511
List ............................... 466 List ............................... 511
Diagnosis Information and Diagnosis Information and
Procedure ............................ 467 Procedure ............................ 515
B19A2, B19A3, B19AC and B19B1 ...... 467 B1AD3, B1AD4 and U1266 ............. 515
B19A4 .............................. 469 B1B06 .............................. 517
B19AB .............................. 470 B1B80, B1B81 and U0120 ............. 518
B19B0 .............................. 471 C0042 and C1F80 .................... 520
U0073, U0146 and U0447 ............. 472 P0564, P0589 and P1A25 ............. 522
U0074 .............................. 474 P0955 .............................. 524
U0416, U0417, U0420, U0422, U0423, P15AB .............................. 525
U0428, U0452, U0546 and U0594 ...... 475
P1900, P1901, P1910, P1911 and
U1562 and U1563 .................... 477 U1008 .............................. 527
U2000 and U2003 .................... 479 U0073, U0074, U0075, U0076, U0077,
Right Hand Rear Drive Assist Module U0078, U0079 and U007A ............. 528
(RHRDA) .................................. 480 U0103, U0110, U0164, U0236, U0292,
DTC Index ............................ 480 U0293, U0298, U1003, U1009, U100E,
List ............................... 480 U1103, U1111, U1115 and U1146 ...... 530
Diagnosis Information and U0121, U0122, U0126, U0127, U0128,
Procedure ............................ 481 U0131, U1101, U1122 and U1414 ...... 532
B19A2, B19A3, B19AC and B19B1 ...... 481 U0140, U0147, U0151, U0159, U1001
and U1041 .......................... 534
B19A4 .............................. 483
U0155, U0186, U0197, U0198, U0208,
B19AB .............................. 484 U0245, U100E, U1023, U1102, U1113,
B19B0 .............................. 485 U1263, U1267, U1269, U126A and
U0073, U0146 and U0447 ............. 486 U179C .............................. 536
U0074 .............................. 488 U0420, U082A, U169D, U17A8, U17C7
and U182A .......................... 538
U0416, U0417, U0420, U0422, U0423,
U0428, U0452, U0546 and U0594 ...... 489 U1021, U1022, U115A, U115B, U1264,
U1265, U1268, U126C and U126D ...... 539
U1562 and U1563 .................... 491
U1116 .............................. 541
U2000 and U2003 .................... 493
U1500 .............................. 543
Driver Monitor System (DMS) .............. 494
U1562 and U1563 .................... 544
DTC Index ............................ 494
U2001 .............................. 546
List ............................... 494
U2218, U2219, U2265 and U2270 ...... 547
Diagnosis Information and
Procedure ............................ 496 U2226, U2227 and U2278 ............. 548
B2340 and B2341 .................... 496 U2228, U2229 and U2263 ............. 549
B2342 and B2343 .................... 497 U222E, U222F and U227C ............. 550
Front Left Seat Control Module (FLSM) ...... 551
7
DTC Index ............................ 551 B1476 .............................. 607
List ............................... 551 B1477 and B147B .................... 608
Diagnosis Information and B1478 .............................. 609
Procedure ............................ 552 B1479 and B147F .................... 610
B1015 and B1016 .................... 552 B147A .............................. 611
B1019 and B1020 .................... 554 B147C and B147D .................... 612
B1025 and B1026 .................... 555 B147E .............................. 613
U0073, U010F, U0140 and U0146 ...... 557 B1482 .............................. 614
U1562 and U1563 .................... 559 B1483 .............................. 615
Test Methods ....................... 560 B1491 .............................. 616
Heating, Ventilation and AC Control B1492 .............................. 617
Module (HVAC) ............................ 563
B1493 .............................. 618
DTC Index ............................ 563
B14A0 and B14A2 .................... 619
List ............................... 563
B14A1 .............................. 620
Diagnosis Information and
Procedure ............................ 567 B14A5 .............................. 621
B13B0 .............................. 567 B14A6B14A7 ....................... 622
B13B4 .............................. 568 B14A8 .............................. 623
B13C0 .............................. 569 B14A9 and B14AA .................... 624
B13C3, B13C4 and B141A ............. 570 B14AB .............................. 625
B13C6 and B14CD .................... 572 B14AC and B14AE .................... 626
B13C7 .............................. 573 B14AD .............................. 627
B13C8 and B13C9 .................... 574 B14C0 .............................. 628
B13CA and B13CB .................... 575 B14C7 .............................. 629
B13CC and B13CD .................... 576 B14CC .............................. 630
B13CF and B13CE .................... 578 B14CE and B14CF .................... 631
B1400 and B1401 .................... 580 B14E7 .............................. 632
B1402 .............................. 582 B14F2, U2001 and U2002 ............. 633
B1403 .............................. 583 U0073 .............................. 634
B1404 .............................. 584 U0140 .............................. 635
B1411 .............................. 585 U0146 .............................. 636
B1412B1423B1424 ................ 587 U1562 and U1563 .................... 637
B1414 .............................. 589 Electric Power Steering Control Module
(EPS) .................................... 638
B1416 .............................. 590
DTC Index ............................ 638
B1419 .............................. 591
List ............................... 638
B1431B1432B144CB144D ......... 592
Diagnosis Information and
B1433B1434 ....................... 594 Procedure ............................ 640
B1437, B1438, B143B and B143C ...... 596 C1624, C1636, C1640, C164A, C1650,
B1441 and B1442 .................... 598 C1660, C1661, C1662, C1665, C1670,
B144B .............................. 599 C1671, C1672, C1680, C16A1, U2000,
U2001, U2002, U2003, U2004, U2005
B1450 .............................. 600 and U0300 .......................... 640
B1451 .............................. 602 C1630, C1631 and C1632 ............. 644
B1461 .............................. 603 C1633 and C1634 .................... 646
B1464 .............................. 604 C16B1, C16B3 and C16B4 ............. 648
B1465 .............................. 605 C16B5, C16B6, C16B8, C16B9, C16BA,
B1467 .............................. 606 U0073, U0122, U0146 and U0158 ...... 650
8
U1562 and U1563 .................... 653 C100A .............................. 720
Electronic Steering Column Lock C100B .............................. 721
(ESCL) ................................... 654 C1013, C104B and C104D ............. 722
DTC Index ............................ 654 C1019C1020C10C0C0598C1003
List ............................... 654 U0300U1000U2001U3000 ......... 724
Diagnosis Information and C1109 .............................. 727
Procedure ............................ 656 C1112, C1113 and C10B0 ............. 728
B170C .............................. 656 C1114 .............................. 729
B1832 .............................. 657 C1115 .............................. 730
B1833 and B1834 .................... 658 C1116 .............................. 731
B1835 .............................. 659 C1121 .............................. 732
B1836 and B1837 .................... 660 C1122 .............................. 734
B1838 .............................. 661 C1801 .............................. 735
B1839, B183A and B183B ............. 662 C1802 .............................. 737
B183C .............................. 663 C1803, C1804 and C1808 ............. 739
B183D, B183E, B183F and B1840 ...... 664 C1805 and C1815 .................... 741
U0073, U0146 and U17A9 ............. 665 C1806 .............................. 743
U0140 .............................. 667 C1807 .............................. 745
U0155 .............................. 668 C1810, C1811 and C1813 ............. 746
U1562 and U1563 .................... 669 C1812 .............................. 748
U2001, U2002, U2004 and U2010 ...... 670 C1816 .............................. 750
Integrated Brake System (IBS) ............ 671 C1830 .............................. 751
DTC Index ............................ 671 U0073 and U0074 .................... 752
List ............................... 671 U0103U010FU0122U0126U0128
Diagnosis Information and U0140U0145U0148U0151U0164
Procedure ............................ 686 U0229U0245U0293U1022U163C
C0020 .............................. 686 U1657U1671U1690U1692U169B
U169DU16ADU16B4U16BDU16BF
C0030, C0033, C0036, C0039, ........ 688 U16DB .............................. 754
C0030, C0031, C0032, C0033, C0034, U0146, U0155, U0404, U0422, U0423,
C0035, C0036, C0037, C0038, C0039, U0428, U0447, U0452, U0546, U1265,
C003A, C003B, C0500, C0502, C0503, U130B, U1322, U1594, U1647, U1655,
C0504, C0505, C0506, C0508, C0509, U168A, U1695, U16E9, U16EF, U174D,
C050A and C050B .................... 690 U17F1, U17F5, U182B, U192C, U192E,
C050C, C050E, C050F, C0510, C0511, U1952, U198F, U19FB, U1A76 and
C0512, C0514, C0515, C0516, C0517, U1B48 .............................. 757
C0518, C0519, C051A, C051B, C0555, U16E7, U1739, U1757, U1763, U1769,
C0556, C0557, C0558, C1A95 and U176E, U177E, U1794, U1889, U188D,
C1A97 .............................. 695 U18D5, U1916, U191B, U193D, U197D,
C0044, C0045, C0046, C004B, C0048 U1994, U199C, U19F0, U19FF, U1B31,
and C1117 .......................... 698 U1B40 and U1B41 .................... 759
C0049 .............................. 702 U1560, U1562 and U1563 ............. 762
C0051 .............................. 704 High-voltage Battery Pack (BMS) .......... 764
C0061, C0062, C0063 and C0597 ...... 707 DTC Index ............................ 764
C0089 .............................. 711 List ............................... 764
C052C, C052E and C053B ............. 713 Diagnosis Information and
C055E, C057E, C058A, C0594, C0596, Procedure ............................ 769
C05B8, C05C2, C060D, C0612, C0614 CMU Physical Comparison ............ 769
and C0616 .......................... 715 P0A0C and P0A0D .................... 770
C006B .............................. 718 P0A7D .............................. 771
9
P0A95 .............................. 772 P1E9C and P1EC2 .................... 834
P0AA7 and P1E06 .................... 773 P1E9D .............................. 835
P0AFA and P0AFB .................... 774 P1EAA and P1EAB .................... 836
P0B19 .............................. 776 P1EB1 .............................. 837
P0C44 and P0C45 .................... 777 P1EB2 .............................. 838
P0C78 .............................. 779 P1EB4 .............................. 839
P1E00 .............................. 781 P1EC1, U1562 and U1563 ............. 840
P1E04 .............................. 783 P1F10 .............................. 842
P1E05 .............................. 784 P1F16, P1F66 and P1F8B ............. 844
P1E07 .............................. 785 P1F17 .............................. 846
P1E0D .............................. 786 P1F31, P1F32, P1F33, P1F34, P1F35,
P1E0E, P1F2C and P1F80 ............. 787 P1F36, P1F37, P1F38 and P1F39 ...... 848
P1E0F and P1F2D .................... 789 P1F63 .............................. 850
P1E11 .............................. 791 P1F64, P1F65 and P1F8C ............. 851
P1E1B .............................. 792 P1F6B and P1F6C .................... 853
P1E1C and P1E1E .................... 793 P1F70, P1F71, P1F72, P1F73, P1F74,
P1F75, P1F7C and P1F7D ............. 855
P1E1D and P1E1F .................... 794
P1F7E, P1F82, P1F83, P1F84, U0073,
P1E22 .............................. 795 U0074, U0146, U0198, U0292, U0293
P1E23 .............................. 796 and U1112 .......................... 857
P1E24 .............................. 797 P1F7F .............................. 860
P1E26 .............................. 798 P1F81 .............................. 862
P1E2B and P1E2C .................... 799 P1F8A .............................. 863
P1E30 and P1E31 .................... 800 P1F96 .............................. 864
P1E32 .............................. 801 U2004 .............................. 866
P1E33 .............................. 802 Combined Charging Unit (CCU) ............. 867
P1E34 and P1E35 .................... 804 DTC Index ............................ 867
P1E37 .............................. 805 List ............................... 867
P1E38 .............................. 806 Diagnosis Information and
P1E39, P1E41, P1EAE and P1EAF ...... 807 Procedure ............................ 870
P1E3B .............................. 809 P1D61 and P1D6A .................... 870
P1E3C and P1F8D .................... 811 P1D62, P1D65, P1D66 and P1D67 ...... 871
P1E3D .............................. 813 P1D63 .............................. 873
P1E3F, P1F85, P1F86 and P1F87 ...... 814 P1D68 .............................. 874
P1E40 .............................. 816 P1D6B, P1D6C, P1D6D, P1D82 and
P1D83 .............................. 875
P1E48 and P1E49 .................... 817
P1D84 .............................. 877
P1E4C, P1E52, P1E58 and P1E5F ...... 818
P1FA0 and P1FA1 .................... 878
P1E4D, P1E53, P1E59 and P1E60 ...... 820
P1FA3, P1FA4 and P1FC2 ............. 879
P1E51, P1E57, P1E5E and P1E64 ...... 822
P1FA5, P1FA6, P1FA7 and P1FAD ...... 881
P1E5A .............................. 824
P1FA9, P1FAA, P1FB4, P1FB6, P1FB7,
P1E6D and P1E94 .................... 825 P1FB8, P1FB9, P1FC3, P1FEF, U2001,
P1E70, P1E71, P1E72 and P1E73 ...... 827 U2002 , U2004 and U2005 ............ 883
P1E75, P1E76 and P1E77 ............. 829 P1FAB .............................. 886
P1E82 .............................. 831 P1FBB, P1FBC, P1FBE, P1FBF, P1FC0,
P1E83 .............................. 832 P1FC1, P1FC5, P1FEE, P3211 and
P3212 .............................. 887
P1E87 .............................. 833
P1FEC, P1FED and P1FEE ............. 889
10
P1FEC .............................. 891 B1A25 and B1A28 .................... 926
P1FED .............................. 892 B1A43 and B1A44 .................... 927
P1FEF .............................. 894 B1A60 .............................. 928
P3210 .............................. 895 B1A61 .............................. 929
P3213, P3214, P3215, P3216 and B1A62 .............................. 930
P3217 .............................. 896 B1A63 .............................. 931
U0073, U0074, U0075, U0146, U0151, B1AA0 .............................. 933
U0198, U0293, U1111, U1763 and
U1897 .............................. 898 B1AE0, B1AE1, B1AE2, B1AE3 and
B1AE9 .............................. 934
U1562 and U1563 .................... 900
B1AE4 .............................. 936
Instrument Pack (IPK) .................... 901
B1AF3 .............................. 937
DTC Index ............................ 901
U0073, U010F, U0122, U0127, U0131,
List ............................... 901 U0140, U0146, U0155 and U0170 ...... 938
Diagnosis Information and U1021, U1023, U110F, U1264 and
Procedure ............................ 902 U1266 .............................. 940
B1221 .............................. 902 U1031 .............................. 941
U0073, U0140, U0146, U0236 and U1500 .............................. 942
U0245 .............................. 903
U1562 and U1563 .................... 943
U1500 .............................. 905
Communication Module (TBOX) .............. 944
U1562 and U1563 .................... 906
DTC Index ............................ 944
U2001 and U2005 .................... 907
List ............................... 944
Electric Vehicle Communication Control
Module (EVCC) ............................ 908 Diagnosis Information and
Procedure ............................ 946
DTC Index ............................ 908
B1511 .............................. 946
List ............................... 908
B1521 and B1522 .................... 947
Diagnosis Information and
Procedure ............................ 909 B1525 and B1526 .................... 948
P1FF0 .............................. 909 B1529 .............................. 949
P1FF7 .............................. 910 B1533 and B1A34 .................... 950
P1FFA .............................. 911 B1535 .............................. 951
P1FFB and U1111 .................... 912 B1541, B1542 and B1570 ............. 952
U1562 and U1563 .................... 913 B1550, B1551 and B1552 ............. 953
U2000, U2001, U2002, U2004, U2020 B1562 .............................. 955
and U2021 .......................... 914 U0073, U0146 and U0151 ............. 956
Front Infotainment Control Module U0078, U0110, U0292, U0293, U1111
(FICM) ................................... 915 and U1112 .......................... 957
DTC Index ............................ 915 U1500 .............................. 959
List ............................... 915 U1562 and U1563 .................... 960
Diagnosis Information and U2001 .............................. 961
Procedure ............................ 918 Body Control Module (BCM) ................ 962
B1A01, B1A02, B1A05, B1A06, B1A07, DTC Index ............................ 962
B1A08, B1A3E, B1A3F and B1A4B ...... 918
List ............................... 962
B1A10 .............................. 919
Diagnosis Information and
B1A11 .............................. 920 Procedure ............................ 971
B1A13 and B1A14 .................... 921 B1041, B1042 and B1043 ............. 971
B1A1D and B1A1E .................... 922 B1045 .............................. 973
B1A20, B1A21, B1A22 and B1A23 ...... 923 B1047, B1048 and B1049 ............. 974
B1A24 and B1A26 .................... 925 B104A and B104B .................... 976
11
B104C and B104E .................... 978 B1169 ............................. 1047
B1053 .............................. 980 B116B ............................. 1049
B1055 and B1078 .................... 981 B11A0 ............................. 1050
B105A and B105B .................... 983 B1307 and B1308 ................... 1051
B1059 and B105C .................... 985 B1310 and B1311 ................... 1053
B105D and B1077 .................... 987 B1312, B1313, B1314, B1414 and
B1060 .............................. 989 B1316 ............................. 1054
B1061 and B1062 .................... 990 B1321, B1322, B1323 and B1324...... 1056
B1066 .............................. 992 B1701, B1702, B1703 and B1705...... 1058
B1070 .............................. 993 B1708 ............................. 1060
B1071 .............................. 994 B1709, B1710 and B1719 ............ 1061
B107B .............................. 995 B1713 and U0151 ................... 1063
B1081 .............................. 996 B1715 and U010F ................... 1064
B1082 .............................. 997 B1716 and U0155 ................... 1065
B1089 .............................. 998 B1754 ............................. 1066
B108A .............................. 999 B1755 ............................. 1068
B10A3 ............................. 1001 B1756 ............................. 1070
B10A6 ............................. 1002 B1757 ............................. 1072
B10AC and B10AD ................... 1003 B1758 ............................. 1074
B10B1 and B10B2 ................... 1004 B1759 ............................. 1076
B1101 ............................. 1005 B170A, B170B and U0198 ............ 1078
B1102 ............................. 1007 B170D and U0236 ................... 1079
B1103 ............................. 1009 B1957, B1958, B1959, B195A, B195B,
B195C, B195D and B195E ............ 1080
B1105 ............................. 1011
B2A02 and B2A03 ................... 1082
B1107 ............................. 1012
P15AB ............................. 1083
B1109 ............................. 1013
C1A00 and C1A01 ................... 1085
B110B ............................. 1014
C1A02 ............................. 1086
B110C ............................. 1016
C1A03 ............................. 1088
B1111 and B1121 ................... 1018
C1A04 ............................. 1090
B1112 and B1122 ................... 1020
C1A05 ............................. 1092
B1113 and B1123 ................... 1022
U0073 and U0075 ................... 1093
B1114 and B1124 ................... 1024
U0100 and U0101 ................... 1094
B1115 and B112B ................... 1026
U0110 ............................. 1095
B1116 and B112C ................... 1028
U0120 ............................. 1096
B1117 and B112D ................... 1030
U0180 and U0208 ................... 1097
B112A ............................. 1032
U0121, U0122 and U0146 ............ 1098
B1130, B1131 and B1132 ............ 1033
U0169 and U1169 ................... 1099
B1134, B1135 and B1136 ............ 1035
U0215 ............................. 1100
B1138, B1139 and B113A ............ 1036
U0222, U0223, U0224 and U0225...... 1101
B113C, B113D and B113E ............ 1037
U0231 ............................. 1102
B1155 ............................. 1038
U0245 ............................. 1103
B1156 ............................. 1040
U0268 ............................. 1104
B1157 ............................. 1041
U0282 ............................. 1105
B1165 and B1166 ................... 1043
U0292 and U0293 ................... 1106
B1167 and B1168 ................... 1045
U1003 ............................. 1107
12
U1005 ............................. 1108 U0140 ............................. 1175
U1008U1024 ...................... 1109 U0146 ............................. 1176
U1116 ............................. 1110 U0155 ............................. 1177
U1140 ............................. 1111 U0293 ............................. 1178
U1150 ............................. 1112 U1264 ............................. 1179
U1158 and U1159 ................... 1113 U1265 ............................. 1180
U1500 and U1501 ................... 1114 U1562 and U1563 ................... 1181
U1562 and U1563 ................... 1115
Appendix ...................... 1183
U2001, U2002, U2004, U2020 and
U2021 ............................. 1117 Shifter Control Unit (SCU-E) ............ 1183
Sensing Diagnostic Module (SDM) ......... 1119 Real-time Display Parameter
DTC Index ........................... 1119 List .............................. 1183
List .............................. 1119 Electric Parking Motor Control Unit
(EPMCU) ................................. 1184
Diagnosis Information and
Procedure ........................... 1123 Real-time Display Parameter
List .............................. 1184
B0001 ............................. 1123
Intelligent Motion Control Unit
B0010 ............................. 1125 (IMCU) .................................. 1186
B0020 ............................. 1127 Real-time Display Parameter
B0021 ............................. 1129 List .............................. 1186
B0028 ............................. 1131 Gateway Module (GW) ..................... 1194
B0029 ............................. 1133 Real-time Display Parameter
B0050 ............................. 1135 List .............................. 1194
B0052 and B0058 ................... 1137 Front Left Seat Control Module
(FLSM) .................................. 1195
B0053 ............................. 1139
Real-time Display Parameter
B0054 ............................. 1141 List .............................. 1195
B0055 ............................. 1143 Heating, Ventilation and AC Control
B0073 ............................. 1145 Module (HVAC) ........................... 1196
B0075 ............................. 1147 Real-time Display Parameter
B0079 ............................. 1149 List .............................. 1196
B007A ............................. 1151 Electric Power Steering Control Module
(EPS) ................................... 1201
B0090 ............................. 1153
Real-time Display Parameter
B0091 ............................. 1155 List .............................. 1201
B0095 ............................. 1157 Electronic Steering Column Lock
B0096 ............................. 1159 (ESCL) .................................. 1203
B00DF ............................. 1161 Real-time Display Parameter
B1920, B1924, B1932, B1933 and List .............................. 1203
B1934 ............................. 1163 Integrated Brake System (IBS) ........... 1204
B1938 and B1939 ................... 1165 Real-time Display Parameter
B193A ............................. 1167 List .............................. 1204
B193C and B193E ................... 1168 Front Detection Radar (FDR) ............. 1207
B193F ............................. 1169 Real-time Display Parameter
List .............................. 1207
U0073 ............................. 1170
Front View Camera Module (FVCM) ......... 1208
U0122 ............................. 1171
Real-time Display Parameter
U0127 ............................. 1172 List .............................. 1208
U0128 ............................. 1173 Left Hand Rear Drive Assist Module
U0131 ............................. 1174 (LHRDA) ................................. 1209
13
Real-time Display Parameter
List .............................. 1209
Right Hand Rear Drive Assist Module
(RHRDA) ................................. 1210
Real-time Display Parameter
List .............................. 1210
Driver Monitor System (DMS) ............. 1211
Real-time Display Parameter
List .............................. 1211
High-voltage Battery Pack (BMS) ......... 1212
Real-time Display Parameter
List .............................. 1212
Combined Charging Unit (CCU) ............ 1224
Real-time Display Parameter
List .............................. 1224
Instrument Pack (IPK) ................... 1231
Real-time Display Parameter
List .............................. 1231
Electric Vehicle Communication Control
Module (EVCC) ........................... 1232
Real-time Display Parameter
List .............................. 1232
Front Infotainment Control Module
(FICM) .................................. 1234
Real-time Display Parameter
List .............................. 1234
Communication Module (TBOX) ............. 1235
Real-time Display Parameter
List .............................. 1235
Body Control Module (BCM) ............... 1236
Real-time Display Parameter
List .............................. 1236
Sensing Diagnostic Module (SDM) ......... 1248
Real-time Display Parameter
List .............................. 1248
14
General Information
Strategy Based Diagnostics
Description on Diagnostic Procedure
1. Understand and confirm the problem reported by any abnormal noise or smell. Collect the DTC
the customer: The first step of this procedure information so as to make effective repair.
is to know as much as possible about the 4. Perform a diagnostic system check - vehicle,
customer. Working conditions while the failure confirm if the system works normally. This
occurs, frequency of the failure and service can help the technician to take systematic
history shall be inquired. The technician shall diagnostic actions and determine which
have a good knowledge of the normal working diagnostic category shall be performed. Refer
condition of the system prior to confirming any to "Diagnostic System Check - Vehicle".
customer claimed problem. For details, please
5. Check and refer to the relevant service
refer to User Manual or Service Manual.
technical information.
2. The driving condition meets the design
6. Diagnostic category:
requirement: this condition exists during
normal driving. The condition described by the a. Current DTC: Diagnose according to the
customer may be a normal condition. Under the designated DTC so as to make an effective
same condition as described by the customer, repair. Refer to "DTC Troubleshooting" .
compare with the similar vehicles which are in b. Symptom - No DTC is detected: Select a
normal operation. Explain the check results and proper symptom diagnosis procedure. Refer
system operation conditions to the customer. to "Phenomena-based Diagnosis".
3. Preliminary Check: Perform an overall visual
c. Intermittent DTC: Intermittent failure is
check. Review the service history. Check for
a failure that does not occur consecutively,
15
General Information
is difficult to reappear and only occurs Diagnostic System Check - Vehicle
when the relevant conditions are met. Perform the diagnostic procedure in this manual on
Normally, intermittent failures are caused condition that all functions below conform to the
by electrical connector and harness failure, design conventions
component failure, electromagnetic/radio
· 12 V battery is fully charged and the cable
frequency interference, driving condition
is clean and secure.
or aftermarket add-on equipments.