C1781

SUSPENSION CONTROL: AIR SUSPENSION SYSTEM: C1781/81: Suspension Control ECU Malfunction
C1781/81 - Suspension Control ECU Malfunction

DESCRIPTION

If a malfunction in the suspension control ECU is detected, DTC C1781/81 is stored.





INSPECTION PROCEDURE

NOTICE:
When replacing the suspension control ECU, perform registration Programming and Relearning.

HINT
If DTC C1782/82 is output at the same time as C1781/81, perform the inspection necessary for DTC C1782/82 first C1782.

PROCEDURE

1. CHECK FOR DTC

(a) Clear the DTC Air Suspension System.

(b) Perform a road test.

(c) Check for DTC Air Suspension System.

Result





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

A -- REPLACE SUSPENSION CONTROL ECU Removal