Cruise Control System
DIAGNOSIS:- Open or poor contact of vacuum valve vent 2 valve and vent 1 valve.
TROUBLE SYMPTOM:
- Cruise control cannot be set (Cancels immediately.)
WIRING DIAGRAM:
8F1: MEASURE RESISTANCE OF VACUUM I VALVE, VENT 2 VALVE AND VENT 1 VALVE.
1. Disconnect connector from actuator.
Terminals No.2 - No.3:
2. Measure resistance of vacuum valve, vent 2 valve and vent 1 valve.
CHECK: Is resistance less than 22 ohms?
YES: Go to step 8F2.
NO: Replace actuator.
8F2: MEASURE RESISTANCE OF VACUUM VALVE, VENT 2 VALVE AND VENT 1 VALVE.
Terminals No.2 - No.1:
Measure resistance of vacuum valve, vent 2 valve and vent 1 valve.
CHECK: Is resistance less than 55 ohms?
YES: Go to step 8F3.
NO: Replace actuator.
8F3: MEASURE RESISTANCE OF VACUUM VALVE, VENT 2 VALVE AND VENT 1 VALVE.
Terminals No.2 - No.4:
Measure resistance of vacuum valve, vent 2 valve and vent 1 valve.
CHECK: Is resistance less than 55 ohms?
YES: Go to step 8F4.
NO: Replace actuator.
8F4: PERFORM A CIRCUIT TEST IN HARNESS BETWEEN ACTUATOR (VACUUM VALVE, VENT 2 VALVE AND VENT 1 VALVE) AND CRUISE CONTROL MODULE.
1. Disconnect connector from cruise control module.
Connector & terminal (B7) No.1 - (B94) No.1:
2. Measure resistance of harness connector between cruise control module, vacuum valve vent 2 valve and vent 1 valve.
CHECK: Is resistance less than 10 ohms?
YES: Go to step 8F5.
NO: Repair or replace wiring harness between actuator and cruise control module.
8F5: PERFORM A CIRCUIT TEST IN HARNESS BETWEEN ACTUATOR (VACUUM VALVE, VENT 2 VALVE AND VENT 1 VALVE) AND CRUISE CONTROL MODULE.
Connector & terminal (B7) No.2 - (B94) No.8:
Measure resistance of harness connector between cruise control module, vacuum valve, vent 2 valve and vent 1 valve.
CHECK: Is resistance less than 10 ohms?
YES: Go to step 8F6.
NO: Repair or replace wiring harness between actuator and cruise control module.
8F6: PERFORM A CIRCUIT TEST IN HARNESS BETWEEN ACTUATOR (VACUUM VALVE, VENT 2 VALVE AND VENT 1 VALVE) AND CRUISE CONTROL MODULE.
Connector & terminal (B7) No.3 - (B94) No.11:
Measure resistance of harness connector between cruise control module, vacuum valve, vent 2 valve and vent 1 valve.
CHECK: Is resistance less than 10 ohms?
YES: Go to step 8F7.
NO: Repair or replace wiring harness between actuator and cruise control module.
8F7: PERFORM A CIRCUIT TEST IN HARNESS BETWEEN ACTUATOR (VACUUM VALVE, VENT 2 VALVE AND VENT 1 VALVE) AND CRUISE CONTROL MODULE.
Connector & terminal (B7) No.4 - (B94) No.2:
Measure resistance of harness connector between cruise control module, vacuum valve, vent 2 valve and vent 1 valve.
CHECK: Is resistance less than 10 ohms?
YES: Replace cruise control module.
NO: Repair or replace wiring harness between actuator and cruise control module.