How To Proceed With Troubleshooting

AIR CONDITIONING: AIR CONDITIONING SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

HOW TO PROCEED WITH TROUBLESHOOTING

The Techstream can be used in steps 2, 5, 6, 7 and 10.
1. VEHICLE BROUGHT TO WORKSHOP
NEXT -- Continue to next step.

2. CHECK AND CLEAR DTCS
NEXT -- Continue to next step.

3. PROBLEM SYMPTOM CONFIRMATION
-- SYMPTOM DOES NOT OCCUR (GO TO STEP 4)
-- SYMPTOM OCCURS (GO TO STEP 5)
4. SYMPTOM SIMULATION
NEXT -- Continue to next step.

5. DTC CHECK (OTHER THAN MULTIPLEX DTC)
-- TROUBLE CODE (GO TO STEP 6)
-- NORMAL SYSTEM CODE (GO TO STEP 7)
6. DTC CHART
-- GO TO STEP 8
7. PROBLEM SYMPTOMS TABLE
NEXT -- Continue to next step.

8. ACTUATOR CHECK
NEXT -- Continue to next step.

9. CIRCUIT INSPECTION
NEXT -- Continue to next step.

10. TERMINALS OF ECU
NEXT -- Continue to next step.

11. IDENTIFICATION OF PROBLEM
NEXT -- Continue to next step.

12. REPAIR OR REPLACE
NEXT -- Continue to next step.

13. CONFIRMATION TEST
NEXT -- END