Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

CHECK DTC PRIORITY
If DTC "C1A06" is displayed with DTC "U1000", first diagnose the DTC "U1000".

Is applicable DTC detected?

YES

Perform diagnosis of applicable DTC. 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	10	E10	134	Yes
	7		135

Check for continuity between spiral cable harness connector and ground.

Spiral cable		Ground	Continuity
Connector	Terminal
M30	10		No
	7

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
Terminals
10	15	Yes
7	18

Is the inspection result normal?

YES

GO TO 5

Replace the spiral cable.

PERFORM SELF DIAGNOSTIC RESULT OF ECM
CONSULT
1. Connect the connectors of ICC steering switch and ECM connector.
2. Turn the ignition switch ON.
3. Select "Self Diagnostic Result" mode of "ENGINE".
4. Check if any DTC is detected in "Self Diagnostic Result" mode of "ENGINE".
Is any DTC detected?

YES

Select "Self Diagnostic Result" on the detected DTC and repair or replace the malfunctioning parts. Refer to DTC Index .

NO

Replace the distance sensor (ICC sensor). Refer to Removal and Installation .