LS 460 V8-4.6L (1UR-FSE) (2007)
Seat Heater: Symptom Related Diagnostic Procedures
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
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Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in
the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as
necessary.
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Inspect the fuses and relays related to the system before inspecting the suspected areas below.
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Problem symptoms may occur if the electric power control system's functions malfunction. Follow the HOW TO PROCEED WITH
TROUBLESHOOTING procedures.
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The electrical equipment operation may be limited by the load control of electric power control system. Follow the HOW TO PROCEED WITH
TROUBLESHOOTING procedures. See: Initial Inspection and Diagnostic Overview/How to Proceed With Troubleshooting
Problem Symptoms Table - Seat Heater System
Rear Left Seat's Seat Heater Does Not Operate
Rear Left Seat's Seat Heater does not Operate
DESCRIPTION
When the seat heater switch is operated, the rear power seat switch receives the signal. The rear seat switch then sends the signal to the rear seat climate
control ECU through LIN communication. rear seat climate control ECU receives the signal and operates the seat heater.
WIRING DIAGRAM