Lexus ES: System Diagram
SYSTEM DIAGRAM
| Sender | Receiver | Signal | Communication Method |
|---|---|---|---|
| Radio Receiver Assembly | Air Conditioning Amplifier Assembly | Front wiper deicer switch signal | CAN |
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System Description
SYSTEM DESCRIPTION GENERAL The windshield deicer system uses thin heater wires attached to the inside of the windshield glass to help deice the window surface more quickly. An indicator light illumina
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Use the following procedure to troubleshoot the windshield deicer system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
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Operation Check
OPERATION CHECK CHECK WINDSHIELD DEICER SYSTEM (a) Turn the engine switch on (IG). (b) Check that the windshield deicer wire (windshield glass) becomes warm by operating the front wiper deicer switch.
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Disassembly
DISASSEMBLY PROCEDURE 1. REMOVE SHIFT POSITION INDICATOR (a) Disengage the 2 clamps to disconnect the wire harness. (b) Remove the 2 screws. (c) Disengage the claw and guide and remove the shift position indicator from the rear upper console panel sub-assembly.
On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT PCV VALVE (VENTILATION VALVE SUB-ASSEMBLY) CAUTION: To prevent injury due to contact with an operating cooling fan, keep your hands and clothing away from the cooling fans when working in the engine compartment with the engine running or the power switch on
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