Lexus ES: System Diagram
SYSTEM DIAGRAM

Communication Table
| Transmitter | Receiver | Signal | Communication Method |
| Rear Window Defogger Switch (Air Conditioning Control Assembly) | Air Conditioning Amplifier Assembly | Rear Window Defogger Switch Signal | LIN |
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SYSTEM DESCRIPTION GENERAL (a) The rear window defogger wire (back window glass) is attached to the inside of the rear window and defogs the window surface quickly when the rear window defogger switch
CAUTION / NOTICE / HINT HINT:
Use the following procedure to troubleshoot the window defogger system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
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OPERATION CHECK CHECK WINDOW DEFOGGER SYSTEM (a) Turn the engine switch on (IG). (b) Check that the rear window defogger wire becomes warm by operating the rear window defogger switch of the air condi
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PROBLEM SYMPTOMS TABLE NOTICE:
After replacing the radio receiver assembly of vehicles subscribed to pay-type satellite radio broadcasts, registration of the XM radio ID is necessary (w/ SXM Function).
If the DCM (telematics transceiver) has been replaced, perform the DCM Activation procedure.
DESCRIPTION This DTC is stored if the clearance warning ECU assembly receives a signal via CAN communication from the steering sensor that indicates a power supply problem. DTC No. Detection Item DTC Detection Condition Trouble Area C1625 Open or Short in Steering Angle Sensor +B Op
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