How To Troubleshoot

WARNING: This page is about a different car, the 2018 Subaru BRZ. However, it is still accessible from the selected car via links, so may be relevant.

Bring in the car
Interview and phenomenon check
1. Perform the interview and phenomenon check (Refer to CHECK LIST FOR INTERVIEW )

Check vehicle status

Check the vehicle specification.

Result

RESULT DESCRIPTION

Result	Go to
For automatic air conditioning system	A
Except for automatic air conditioning system	B

Go to next step
Go to Step 5.

Inspection of CAN communication system

Check CAN communication system. (Refer to HOW TO TROUBLESHOOT )

Result

RESULT DESCRIPTION

Result	Go to
Functioning properly	A
Not functioning properly	B

Go to next step
Go to the CAN communication system section (Refer to HOW TO TROUBLESHOOT )

Symptom table

Check the symptom table. (Refer to SYMPTOM TABLE )

Result

RESULT DESCRIPTION

Result	Go to
Not applicable to the symptom table.	A
Applicable to the symptom table.	B

Go to next step
Go to Step 7.

Based on the trouble phenomenon, perform troubleshooting following the steps below.
1. Function inspection (Refer to WINDOW DEFOGGER SYSTEM )
2. ECM terminal arrangement (Refer to ECM TERMINAL ARRANGEMENT )
3. Data monitor/active test*1 (Refer to DATA MONITOR/ACTIVE TEST )
  *1: For automatic air conditioning system
Adjustment, repair, or replacement
Confirmation test
Complete