C1781

SUSPENSION CONTROL: ACTIVE HEIGHT CONTROL SUSPENSION: C1781: Suspension Control ECU Malfunction
C1781 - Suspension Control ECU Malfunction

DESCRIPTION





INSPECTION PROCEDURE

NOTICE:
- If DTC C1782 is stored at the same time, perform the inspection for DTC C1782 first.
- If the suspension control ECU or height control sensor is replaced, the vehicle height offset calibration must be performed Programming and Relearning.

PROCEDURE

1. CLEAR DTC

(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.

NEXT -- Continue to next step.

2. CHECK FOR DTC

(a) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.

OK:

C1781 is not output.

NG -- REPLACE SUSPENSION CONTROL ECU Removal

OK -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting