Diagnostic procedure
DIAGNOSTIC PROCEDURE CHART
| STEP |
INSPECTION |
ACTION |
| 1 |
VERIFY DSC, PCM, AND AWD SYSTEM DTCS
- Verify DSC, PCM, and AWD system DTCs using WDS or equivalent.
- Are there any DTCs present?
|
Yes |
Go to applicable DTC inspection. |
| No |
Go to next step. |
| 2 |
VERIFY INSTALLATION CONDITION OF VEHICLE PARTS
- Verify installation condition for following:
- Propeller shaft (including bending and joint operation)
- Center bearing
- Engine mount
- Differential mount
- Hub bearing
- Exhaust system parts
- ABS wheel-speed sensor
- Are they properly installed?
|
Yes |
Go to next step. |
| No |
Repair or replace malfunctioning part. |
| 3 |
DETERMINE IF MALFUNCTION IS CAUSED BY REAR DIFFERENTIAL
- Install tires of another brand.
NOTE:
- When tires of another brand are installed, the same malfunction can occur due to conditions different from customer explanation. Be careful not to confuse it with customer complaint.
- Perform simulation driving at the same engine speed, gear position, and vehicle speed that customer vehicle had malfunction.
- Does the same malfunction occur?
|
Yes |
Reinstall customer's vehicle tire. Go to next step. |
| No |
AWD system is okay.
Reinstall customer's vehicle tire. |
| 4 |
INSPECT REAR DIFFERENTIAL
- Inspect rear differential for following:
- Are they okay?
|
Yes |
Replace coupling component. |
| No |
Inspect malfunctioning part and adjust it if necessary. |