How to proceed with troubleshooting (2006/01- )

• Use these procedures to troubleshoot the air conditioning system
• *: Use the intelligent tester.

1. Vehicle brought to workshop

2. Customer problem analysis and symptom check

3. Inspect battery voltage

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

1. 1
   Check can communication system*
2. 2
   Use the intelligent tester to check if the can communication system is functioning.

1. 1
   Check dtc*
2. 2
   Check for dtcs and write down any dtcs that are output.
3. 3
   Clear the dtcs.
4. 4
   Recheck for dtcs. Based on the dtcs output above, try to cause output of the air conditioning system dtc by simulating the operation indicated by the dtc.

Result

6. Refer to problem symptoms table

Result

1. 1
   Overall analysis and troubleshooting*
2. 2
   Data list / active test (see page ac-128)
3. 3
   Terminals of ecu (see page ac-123)

   

8. Adjust, repair or replace

9. Confirmation test