Nissan 90 ~93 free download

File name cruise control system.pdf

CRUISE CONTROL SYSTEM 1993 Nissan Sentra 1993 ACCESSORIES/SAFETY EQUIPMENT Nissan Cruise Control Systems Sentra DESCRIPTION & OPERATION NOTE: For system component locations, see SYSTEM COMPONENT LOCATIONS table under DESCRIPTION & OPERATION. ACTUATOR Actuator pump contains a vacuum pump motor and control valve assembly. Control valve assembly regulates vacuum supply to diaphragm based on signals received from cruise control module. BRAKE CANCEL, BRAKELIGHT & CLUTCH SWITCHES NOTE: DO NOT confuse brake cancel switch (activated by braking) with CANCEL switch on steering wheel. See STEERING SWITCH. These switches disengage system. Brake cancel switch and brakelight switch are separate switches. When brake pedal is pressed: * * Brakelight switch allows current flow to control module. Brake cancel switch interrupts current flow to control module. If either condition occurs, control module disengages the system. When clutch pedal is pressed, clutch switch interrupts current flow to control module. This disengages system. CRUISE CONTROL MODULE Based on inputs received from various sensors, cruise control module sends signals to actuator control valve assembly to maintain vehicle speed. INHIBITOR RELAY (A/T) When transmission is in Park or Neutral, inhibitor relay interrupts current flow to cruise control module, disengaging system. MAIN SWITCH system. Switch is mounted on instrument panel and supplies power for STEERING SWITCH Steering switch is a system control switch, mounted on steering wheel. Steering switch has 3 different switches, controlling different functions of system. Steering switch contains RESUME/ACCEL, CANCEL and SET/COAST switches. SYSTEM COMPONENT LOCATIONS SYSTEM COMPONENT LOCATIONS Application Behind Dash, To Left Of Steering Column Cruise Control Relay (1) ... Near Cruise Control Module Vehicle Speed Sensor ... Mounted On Transmission (1) - Relay is Blue. Cruise Control Module NOTE: 1) Turn ignition on. Turn cruise control main switch to ON position. If indicator light illuminates, go to next step. If indicator light does not illuminate, check for blown fuse, open in power supply circuit to main switch or faulty cruise control main switch. If these components are okay, perform CRUISE CONTROL RELAY test under TESTING. 2) Perform POWER SUPPLY CIRCUIT test under TESTING. If power supply circuit is okay, perform CUT-OFF CIRCUIT test under TESTING. If cut-off circuit is okay, perform SET/COAST SWITCH CIRCUIT test under TESTING. 3) If SET/COAST switch circuit is okay, perform SPEED SENSOR CIRCUIT test under TESTING. If speed sensor circuit is okay, perform ACTUATOR test under TESTING. If actuator is okay, measure resistance between cruise control module connector terminal No. 8 and terminals No. 9, 10 and 14. See Fig. 2 and 3. 4) If resistance is not about 8-45 ohms when measuring between terminals No. 8 and 9, and about 65 ohms when measuring between terminal No. 8 and terminals No. 10 and 14, repair harness.