Air Conditioning System (for Manual Air Conditioning System)

AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Manual Air Conditioning System): HOW TO PROCEED WITH TROUBLESHOOTING

HINT
* Use these procedures to troubleshoot the air conditioning system.
* *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP

NEXT -- Continue to next step.

2. INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the battery before proceeding.

NEXT -- Continue to next step.

3. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Use the Techstream to check if the CAN communication system is functioning normally.

Result





B -- GO TO CAN COMMUNICATION SYSTEM Service Precautions
A -- Continue to next step.

4. CHECK FOR DTC*

(a) Check for DTCs and note any codes that are output Air Conditioning System (for Manual Air Conditioning System).

(b) Delete the DTC Air Conditioning System (for Manual Air Conditioning System).

(c) Recheck for DTCs. Based on the DTCs output above, try to force output of the air conditioning system DTC by simulating the operation indicated by the DTC.

Result





B -- GO TO STEP 7
A -- Continue to next step.

5. PROBLEM SYMPTOMS TABLE

(a) Refer to the problem symptoms table Air Conditioning System (for Manual Air Conditioning System).

Result





B -- GO TO STEP 7
A -- Continue to next step.

6. OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) DATA LIST / ACTIVE TEST Air Conditioning System (for Manual Air Conditioning System)

(b) Terminals of ECU Air Conditioning System (for Manual Air Conditioning System)

(c) On-vehicle Inspection

(d) Inspection

NEXT -- Continue to next step.

7. ADJUST, REPAIR OR REPLACE

NEXT -- END