Cruise Control System (DTC/Circuit Diagnosis)

WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

CHECK SELF-DIAGNOSIS RESULTS
Check if "U1000" is detected other than "C1A06" in "Self Diagnostic Result" of "ICC/ADAS".

Is "U1000" detected?

YES

Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to DTC Logic .

NO

GO TO 2.
CHECK ICC STEERING SWITCH
1. Turn the ignition switch OFF.
2. Disconnect the ICC steering switch connector.
3. Check the ICC steering switch. Refer to Component Inspection .
Is the inspection result normal?

YES

GO TO 3.

NO

Replace the ICC steering switch.

CHECK HARNESS BETWEEN SPIRAL CABLE AND ECM

Disconnect the ECM connector.

Check for continuity between the spiral cable harness connector and ECM harness connector.

Spiral cable		ECM		Continuity
Connector	Terminal	Connector	Terminal
M30	25	E16 (VQ35DE)	101	Yes
	32		108
	25	E32 (VQ35DD)	186
	32		187

Check for continuity between spiral cable harness connector and ground.

Spiral cable		Ground	Continuity
Connector	Terminal
M30	25		No
	32

Is the inspection result normal?

YES

GO TO 4.

Repair the harnesses or connectors.

CHECK SPIRAL CABLE

Check for continuity between spiral cable terminals.

Spiral cable		Continuity
Terminal
13	25	Yes
16	32

Is the inspection result normal?

YES

GO TO 5.

Replace the spiral cable.

PERFORM SELF-DIAGNOSIS OF ECM
1. Connect the connectors of ICC steering switch and ECM connector.
2. Turn the ignition switch ON.
3. Perform "All DTC Reading".
4. Check if any DTC is detected in "Self Diagnostic Result" of "ENGINE".
Is any DTC detected?

YES

Perform self-diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to DTC Index .

NO

Replace the ADAS control unit. Refer to Removal and Installation .