Troubleshooting Strategy

TROUBLESHOOTING STRATEGY

Use these steps to plan your diagnostic strategy. If you follow them carefully, you will find most S-AWC malfunctions.
1. Gather as much information as possible about the complaint from the customer.
2. Verify that the condition described by the customer exists.
3. Check the vehicle for any S-AWC Diagnostic Trouble Codes (DTCs).
4. If you can not verify the condition and there are no DTCs, the malfunction is intermittent. For information on how to cope with intermittent malfunctions, refer to How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction How to Cope With Intermittent Malfunctions.
5. If you can verify the condition but there are no DTCs, or the system can not communicate with scan tool, refer to the Symptom Chart Symptom Chart.
6. If there is a DTC, record the number of the code, then erase the code from memory using scan tool.
7. Reconfirm the symptom.
8. If a DTC is set again, go to the Inspection Chart for Diagnostic Trouble Codes.
9. If a DTC is not set again, the malfunction is intermittent. For information on how to cope with intermittent malfunctions, refer to How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction How to Cope With Intermittent Malfunctions.
10. Verify malfunction is eliminated. After repairs are completed, the complaint conditions to confirm the malfunction has been eliminated.

PRECAUTIONS FOR DIAGNOSIS

Before diagnosis, check that all the following items are normal.

- A normal steering wheel is installed correctly to the neutral position of steering column shaft assembly.
- The size of tire and wheel, specification, tire pressure, balance, and wear status are normal.
- The wheel alignment is normal.
- No modifications to the engine, suspension, or others, which can affect the S-AWC system, is implemented.