|
|
TROUBLESHOOTING ELECTRONICALLY CONTROLLED 4WD 27C-14 STEP 4. M.U.T.-III diagnosis code. Q: Is the diagnosis code set? YES : Carry out the appropriate troubleshooting. Then go to Step 9. NO : Go to Step 5. STEP 5. Check of steering wheel sensor − Steering Wheel Sen- sor ). Q: Is the check result normal? YES : Go to Step 6. NO : Install the steering wheel sensor correctly. STEP 6. Wheel alignment check Q: Is the check result normal? YES : After checking the wheel alignment, calibrate the steering wheel sensor (Refer to − On-vehicle Service ), and reset the steering wheel sensor correction ). Then, go to Step 7. NO : After adjusting the wheel alignment, − On-vehicle Service ), and reset the steering wheel sensor correction ). Then, go to Step 7. STEP 7. M.U.T.-III data list. ). • Item No.8: Steering angle sensor Q: Is the check result normal? YES : Go to Step 8. NO : Replace the steering wheel sensor (Refer to − Steering Wheel Sensor ). Then, go to Step 9. STEP 8. Check whether the diagnosis code is Q: Is diagnosis code No.C1219 set? YES : Replace the 4WD-ECU (Refer to Then, go to Step 9 . NO : Intermittent malfunction (Refer to GROUP − How to Cope with Intermittent Malfunction ). STEP 9. Check whether the diagnosis code is Q: Is diagnosis code No.C1219 set? YES : Return to Step 1. NO : This diagnosis is complete. Code No.C121A: Steering Wheel Sensor Initialization <ASC> CAUTION • If there is any problem in the CAN bus lines, an incorrect diagnosis code may be set. Prior • 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 − On-vehicle Service ), and reset the steering wheel sensor correction amount OPERATION Steering wheel sensor stores the neutral position DIAGNOSIS CODE SET CONDITION This diagnosis code is set when the abnormality • the steering wheel sensor has not learned the neutral position |