Diagnosis Procedure

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".

1. 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 "ADAS CONTROL UNIT: DTC LOGIC ".

   NO: GO TO  2.

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 steering wheel.

3. CHECK HARNESS BETWEEN SPIRAL CABLE AND ECM 
   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
      M30	25	E16	101	Yes
      	32		108

   3. 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.

   NO: Repair the harnesses or connectors.

4. 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.

   NO: Replace the spiral cable.

5. 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 ".