C1787

SUSPENSION CONTROL: ACTIVE HEIGHT CONTROL SUSPENSION: C1787: Forward/Rearward/Sideways G Sensor Communication Error

DTC C1787 - Forward/Rearward/Sideways G Sensor Communication Error

DESCRIPTION

The suspension control ECU receives signals from the yaw rate sensor 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 (VEHICLE STABILITY CONTROL SYSTEM)
(a) Check if a yaw rate 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)
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