C1785

SUSPENSION CONTROL: ACTIVE HEIGHT CONTROL SUSPENSION: C1785: Steering Control ECU Communication Error

DTC C1785 - Steering Control ECU Communication Error

DESCRIPTION

The suspension control ECU receives signals from the steering control ECU via CAN communication.






INSPECTION PROCEDURE
NOTICE:
- Before performing troubleshooting, inspect the connectors of related circuits.
- If the suspension control ECU or height control sensor is replaced, the vehicle height offset calibration must be performed Testing and Inspection.

PROCEDURE

1. CHECK DTC (VARIABLE GEAR RATIO STEERING SYSTEM)
(a) Check if a DTC is output from the variable gear ratio steering system Reading and Clearing Diagnostic Trouble Codes.

Result





B -- GO TO VARIABLE GEAR RATIO STEERING SYSTEM (DIAGNOSTIC TROUBLE CODE CHART)
A -- Continue to next step.
2. CLEAR DTC
(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.
NEXT -- Continue to next step.
3. CHECK DTC
(a) Check for DTCs.

Result





B -- USE SIMULATION METHOD TO CHECK
A -- REPLACE SUSPENSION CONTROL ECU