Cruise Control System

C1A27 ECD POWER SUPPLY CIRCUIT





DTC Logic

DTC DETECTION LOGIC






NOTE:
If DTC "C1A27" is detected along with DTC "U1000", "U0415", or "U0121" first diagnose the DTC "U1000", "U0415", or "U0121".
- DTC "U1000": Cruise Control.
- DTC "U0415": VDC CAN 1.
- DTC "U0121": U0121.

DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Wait for approximately 1 minute after turning the MAIN switch of ICC system ON.
3. Perform "All DTC Reading" with CONSULT-III.
4. Check if the "C1A27" is detected as the current malfunction in "Self Diagnostic Result" of "ICC/ADAS".
Is "C1A27" detected as the current malfunction?
YES - SEE Diagnosis Procedure.
NO - Intermittent Incident.




Diagnosis Procedure
1.CHECK SELF-DIAGNOSIS RESULTS
Check if "U1000", "U0415" or "U0121" is detected other than "C1A27" in "Self Diagnostic Result" of "ICC/ADAS".
Is any DTC detected?
YES - Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Testing and Inspection.
NO - GO TO 2.
2.CHECK POWER SUPPLY CIRCUIT OF ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
Check power supply circuit of ABS actuator and electric unit (control unit). Power Supply And Ground Circuit.
Is the inspection result normal?
YES - Perform self-diagnosis of ABS actuator and electric unit (control unit). Testing and Inspection, "DTC
Index".
NO - Repair the harnesses or connectors.