How To Proceed With Troubleshooting

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

Techstream can be used in steps 3, 6, 7, 8 and 11.

1. VEHICLE BROUGHT TO WORKSHOP

NEXT -- Continue to next step.

2. CUSTOMER PROBLEM ANALYSIS

(a) Confirm problem symptoms.

NEXT -- Continue to next step.

3. CHECK AND CLEAR THE DTCS

NEXT -- Continue to next step.

4. PROBLEM SYMPTOM CONFIRMATION

Result:





B -- GO TO STEP 6
A -- Continue to next step.

5. SYMPTOM SIMULATION

NEXT -- Continue to next step.

6. CHECK BODY MULTIPLEX COMMUNICATION SYSTEM

(a) Check for the DTC output.

Result:





B -- MULTIPLEX DTC OUTPUTS (PROCEED TO "BODY MULTIPLEX COMMUNICATION SYSTEM")
A -- Continue to next step.

7. CHECK CAN COMMUNICATION SYSTEM

(a) Check for the DTC output.

Result:





-- CAN DTC OUTPUTS (PROCEED TO "CAN COMMUNICATION SYSTEM")
A -- Continue to next step.

8. DTC CHECK (OTHER THAN MULTIPLEX DTC)

NEXT -- Continue to next step.

9. PROBLEM SYMPTOMS TABLE

NEXT -- Continue to next step.

10. ACTUATOR CHECK

NEXT -- Continue to next step.

11. CIRCUIT INSPECTION

NEXT -- Continue to next step.

12. PROBLEM IDENTIFICATION

NEXT -- Continue to next step.

13. PARTS INSPECTION

NEXT -- Continue to next step.

14. REPAIR

NEXT -- Continue to next step.

15. CONFIRMATION TEST

NEXT -- END