How To Proceed With Troubleshooting

POWER STEERING: POWER STEERING SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

Perform troubleshooting according to the following flowchart.

HINT
The Techstream can be used in steps 3, 4, 7, 10 and 13.

1. VEHICLE BROUGHT TO WORKSHOP

NEXT -- Continue to next step.

2. CUSTOMER PROBLEM ANALYSIS

NEXT -- Continue to next step.

3. CHECK DTC AND FREEZE FRAME DATA

(a) Record DTCs and freeze frame data. Reading and Clearing Diagnostic Trouble Codes

NEXT -- Continue to next step.

4. CLEAR DTC AND FREEZE FRAME DATA

HINT
Clear DTC and FREEZE FRAME DATA Reading and Clearing Diagnostic Trouble Codes.

NEXT -- Continue to next step.

5. PROBLEM SYMPTOM CONFIRMATION

-- SYMPTOM DOES NOT OCCUR: GO TO STEP 6

-- SYMPTOM OCCURS: GO TO STEP 7

6. SYMPTOM SIMULATION

NEXT -- Continue to next step.

7. CHECK DTC

(a) Recheck for DTCs Reading and Clearing Diagnostic Trouble Codes.

HINT
* Refer to the diagnostic trouble code chart when any DTCs are output.
* When any CAN communication system DTCs are output, perform troubleshooting on the CAN communication system first.
* When communication to the power steering ECU is not established through the Techstream , inspect terminals SIL of the DLC3 and the power steering ECU, and the IG circuit of the power steering ECU.
-- NORMAL SYSTEM CODE OUTPUT: GO TO STEP 8

-- DTC OUTPUT: GO TO STEP 9

8. PROBLEM SYMPTOMS TABLE

HINT
Refer to PROBLEM SYMPTOMS TABLE Power Steering System.

NEXT -- Continue to next step.

9. DTC CHART

HINT
Refer to DIAGNOSTIC TROUBLE CODE CHART Power Steering System.

NEXT -- Continue to next step.

10. CIRCUIT INSPECTION

NEXT -- Continue to next step.

11. PROBLEM IDENTIFICATION

NEXT -- Continue to next step.

12. REPAIR OR REPLACE

NEXT -- Continue to next step.

13. CONFIRMATION TEST

NEXT -- END