C1784

SUSPENSION CONTROL: ACTIVE HEIGHT CONTROL SUSPENSION: C1784: Steering Angle Sensor Communication Error
C1784 - Steering Angle Sensor Communication Error

DESCRIPTION

The steering sensor signal is sent to the suspension control ECU through the CAN communication system. When there is a communication malfunction, it will be detected by the diagnosis function.





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 Programming and Relearning.

PROCEDURE

1. CHECK DTC (VEHICLE STABILITY CONTROL SYSTEM)

(a) Check if a steering sensor malfunction DTC is output under the vehicle stability control system Reading and Clearing Diagnostic Trouble Codes.

Result





B -- GO TO VEHICLE STABILITY CONTROL SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) Vehicle Stability Control System
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 How To Proceed With Troubleshooting

A -- REPLACE SUSPENSION CONTROL ECU Removal