DTC C2543: Error Passive
DTC DETECTING CONDITION:
When send/receive failure of CAN communication is detected after the ignition switch is ON.
TROUBLE SYMPTOM:
The steering wheel operation feels heavy.
WIRING DIAGRAM:
Electric power steering system Ref. to ELECTRIC POWER STEERING SYSTEM .
| Step | Check | Yes | No |
|---|---|---|---|
| 1 CHECK PERIPHERALS. Check the data link connector. |
Is any other electrical part connected to the data link connector or harness? | Disconnect the connection of electrical parts and perform inspection. | Go to step 2 . |
| 2 CHECK LAN SYSTEM. Perform the diagnosis for LAN system using the Subaru Select Monitor. Ref. to BASIC DIAGNOSTIC PROCEDURE . |
Is a DTC related to CAN communication detected? | Perform the diagnosis according to the DTC. Ref. to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . | Go to step 3 . |
| 3 CHECK DTC. Read the DTC of the power steering control module using the Subaru Select Monitor. Ref. to READ DIAGNOSTIC TROUBLE CODE (DTC) . |
Is DTC C2543 a current malfunction? | Go to step 4 . | System is normal. Temporary interference from noise is a possible cause. |
| 4 CHECK CONNECTOR. Check the connecting condition of connector. |
Is the connector firmly installed? | Go to step 5 . | Install the connector, and check. |
5 CHECK CONNECTOR.
|
Is there crimped or spread portion in connector terminal on vehicle harness side and power steering control module side? | Repair or replace faulty parts. | Go to step 6 . |
| 6 CHECK HARNESS. Check the harness related to CAN communication system. |
Is there any fault in the harness? | Repair or replace the harness. | Replace the steering gearbox. Ref. to ELECTRIC POWER STEERING GEARBOX . |