How To Proceed With Troubleshooting

WARNING: This page is about a different car, the 2006 Lexus IS 350 and 2006 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

Use this procedure to troubleshoot the climate control seat system.
The intelligent tester should be used in step 4.

VEHICLE BROUGHT TO WORKSHOP
CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK
PROBLEM SYMPTOMS TABLE
HINT:

See PROBLEM SYMPTOMS TABLE
OVERALL ANALYSIS AND TROUBLESHOOTING
1. Circuit inspection
2. Terminal of ECU
  HINT:
  
  See TERMINALS OF ECU
ADJUST, REPAIR OR REPLACE
END