Cruise Control Switch Circuit

CRUISE CONTROL: CRUISE CONTROL SYSTEM: Cruise Control Switch Circuit

Cruise Control Switch Circuit

DESCRIPTION

This circuit sends signals to the hybrid vehicle control ECU depending on the cruise control main switch condition. The battery supplies positive (+) battery voltage to the cruise control main switch. Then terminal CCS of the hybrid vehicle control ECU receives the voltage according to the switch condition.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING TECHSTREAM (CRUISE CONTROL MAIN SWITCH)
(a) Check the DATA LIST for proper functioning of the cruise control switch.

Hybrid vehicle control ECU





OK:
When cruise control switch operation is performed, the results will be same as above.
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
NG -- Continue to next step.
2. INSPECT CRUISE CONTROL MAIN SWITCH





(a) Disconnect the cruise control main switch connector.
(b) Measure the resistance of the switch.
Standard resistance:






NG -- REPLACE CRUISE CONTROL MAIN SWITCH
OK -- Continue to next step.
3. INSPECT SPIRAL CABLE SUB-ASSEMBLY





(a) Disconnect the cruise control switch connector.
(b) Disconnect the K20 spiral cable connector.
(c) Measure the resistance of the spiral cable.
Standard resistance:






NG -- REPLACE SPIRAL CABLE SUB-ASSEMBLY
OK -- Continue to next step.
4. CHECK WIRE HARNESS (SPIRAL CABLE - HYBRID VEHICLE CONTROL ECU AND BODY GROUND)





(a) Disconnect the K20 spiral cable connector.
(b) Disconnect the A54 ECU connector.
(c) Measure the resistance of the wire harness side connectors.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE