Diagnosis Procedure

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

Is applicable DTC detected?

YES 

Perform diagnosis of applicable. Refer to DTC DESCRIPTION .

NO 

GO TO STEP 2  .

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 STEP 3. 

NO 

Replace the ICC steering switch.

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

   Spiral cable		ECM		Continuity
   Connector	Terminal	Connector	Terminal
   M33	25	E20	134	Existed
   	32		135

3. Check for continuity between spiral cable harness connector and ground.

   Spiral cable		Ground	Continuity
   Connector	Terminal
   M33	25		Not existed
   	32

Is the inspection result normal?

YES 

GO TO STEP 4. 

NO 

Repair the harnesses or connectors.

Check for continuity between spiral cable terminals.

Is the inspection result normal?

YES 

GO TO STEP 5. 

NO 

Replace the spiral cable.

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 .