C1784

DTC C1784/84 Steering Angle Sensor Communication Error

DESCRIPTION

DTC Detection Condition:

The steering angle 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.

Wiring Diagram:

Step 1:

Step 1(Continued)-3:

Step 3(Continued)-4:

INSPECTION PROCEDURE

NOTE:
- Before performing troubleshooting, inspect the connectors of related circuits.
- If DTC C1782/82 (Power Source Voltage Malfunction) is output at the same time, perform troubleshooting for C1782/82 first.
- Before replacing the suspension control ECU, perform all of the following again: 1) symptom simulation; 2) DTC inspection; and 3) intelligent tester or Techstream inspection (Data List or Active Test). If no malfunctions are found in other areas, replace the suspension control ECU.
- If the suspension control ECU or height control sensor is replaced, the vehicle height offset calibration must be performed.