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DTC C1630: Steering Wheel Sensor Timeout
 
 
caution
  • If there is any problem in the CAN bus lines, an incorrect DTC may be stored. Prior to this diagnosis, diagnose the CAN bus lines.
  • Whenever the ECU is replaced, ensure that the CAN bus lines are normal.
  • When the steering wheel sensor is replaced, calibrate the steering wheel sensor (Refer to GROUP 35C - On-vehicle Service ), and reset the steering wheel sensor correction amount stored in the AWC-ECU. (Item No. 1: SAS adjusted value ).
 
 
OPERATION
AWC-ECU communicates with the steering wheel sensor via the CAN bus lines.
 
 
DTC SET CONDITION
This DTC is stored when the abnormality below is detected:
  • The CAN signal of the steering wheel sensor cannot be received.
 
 
PROBABLE CAUSES
  • Malfunction of the CAN bus line
  • Damaged connectors (steering wheel sensor)
  • Malfunction of the steering wheel sensor
  • Malfunction of AWC-ECU

 
 
DIAGNOSTIC PROCEDURE
STEP 1. Scan tool (M.U.T.-III) CAN bus diagnostics.
Use scan tool (M.U.T.-III) to perform the CAN bus diagnosis.
Is the check result normal?
Go to Step 2.
Repair the CAN bus lines (Refer to GROUP 54C - Diagnosis, Can Bus Diagnostics Table ).
 
STEP 2. Scan tool (M.U.T.-III) data list.
Check the following data list (Refer to ).
  • Item No.8: Steering angle sensor
Is the check result normal?
Intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ).
Replace the steering wheel sensor (Refer to GROUP 35C - Steering Wheel Sensor ). Then go to Step 3.
 
STEP 3. Check whether the DTC is stored again.
Is DTC No.C1630 stored?
Replace the AWC-ECU.(Refer to ). Then go to Step 4.
Intermittent malfunction. (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ).
 
STEP 4. Check whether the DTC is stored again.
Is DTC No.C1630 stored?
Return to Step 1.
This diagnosis is complete.