C1A06

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS


C1A06 OPERATION SW CIRC

1.PERFORM ICC SENSOR INTEGRATED UNIT SELF-DIAGNOSIS
1. Perform self-diagnosis.
2. Check if "U1000: CAN COMM CIRCUIT" (DTC 100) other than "C1A06: OPERATION SW CIRC" (DTC 6) is indicated in self-diagnosis item in the display.
Is it indicated?
YES - 1. CAN communication inspection. ICC.
2. After repairing or replacing applicable item, erase DTC and perform ICC system running test.
Then perform self-diagnosis of ICC system again.
NO - GO TO 2.
2.CHECK CONNECTOR FOR ECM
1. Turn ignition switch OFF.
2. Disconnect ECM connector, and connect it securely again.
3. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
4. Check if "C1A06: OPERATION SW CIRC" (DTC 6) is indicated in self-diagnosis item in the display.
Is it indicated?
YES - GO TO 3.
NO - Poor connector connection
1. Check connector. (Check connector housing for disconnected, loose, bent, and collapsed terminals. If any malfunction is detected, repair applicable part.)
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
3.CHECK ICC STEERING SWITCH
1. Turn ignition switch OFF.
2. Check ICC steering switch. ICC Steering Switch.
OK or NG
OK - GO TO 4.
NG - 1. Replace ICC steering switch.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
4.CHECK ICC STEERING SWITCH SIGNAL CIRCUIT
1. Disconnect spiral cable connector and ECM connector.





2. Check continuity between spiral cable harness connector (A) and ECM harness connector (B).















3. Check continuity between spiral cable harness connector (A) and ground.





OK or NG
OK - GO TO 5.
NG - 1. Repair or replace harness between spiral cable and ECM.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
5.CHECK COMBINATION SWITCH (SPIRAL CABLE)





Check continuity between spiral cable terminals.





OK or NG
OK - 1. Perform "ENGINE" self-diagnosis. EC (for VQ35HR) or , "CONSULT-
III Function" (for VK45DE).
2. After repairing or replacing applicable item, erase DTC and perform ICC system running test.
Then perform self-diagnosis of ICC system again.
NG - 1. Replace spiral cable.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.