C1601

C1601 BATTERY POWER SUPPLY

DTC Logic


DTC DETECTION LOGIC







1. PRECONDITIONING

If "DTC CONFIRMATION PROCEDURE" has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.
- GO TO 2.

2. DTC REPRODUCTION PROCEDURE

With CONSULT
1.Set the vehicle to READY state or start the engine.
2.Perform "EPS" self-diagnosis.
Is DTC "C1601" detected?
YES- Proceed to diagnosis procedure. .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK POWER STEERING CONTROL MODULE GROUND CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect power steering control module harness connector.
3.Check continuity between power steering control module harness connector terminal and ground.





4.Connect power steering control module harness connector.
Is the inspection result normal?
YES- GO TO 2.
NO- Repair open circuit or short to ground or short to power in harness or connectors.

2. CHECK POWER STEERING CONTROL MODULE POWER SUPPLY CIRCUIT (1)

With CONSULT
Select "BATTERY VOLT" in "DATA MONITOR" in "EPS".





Is the inspection result normal?
YES- Check the battery voltage. Testing and Inspection. After GO TO 4.
NO- GO TO 3.

3. CHECK POWER STEERING CONTROL MODULE POWER SUPPLY CIRCUIT (2)

1.Turn ignition switch OFF.
2.Check the 80A fuse (#O).
3.Check the harness for open or short between power steering control module harness connector No.13
terminal and the 80A fuse (#O).
Is the inspection result normal?
YES- Perform the trouble diagnosis for ignition power supply circuit. Ignition Power Supply.
NO- GO TO 4.

4. CHECK TERMINALS AND HARNESS CONNECTORS

Check the power steering control module pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES- Power steering control module is malfunctioning. Replace power steering oil pump assembly.
Service and Repair.
NO- Repair or replace error-detected parts.