Lexus ES: System Diagram
SYSTEM DIAGRAM

Communication Table
| Sender | Receiver | Signal | Line |
| Main Body ECU (Multiplex Network Body ECU) | Outer Mirror Control ECU Assembly | -
IG signal
-
ACC signal
-
Outer mirror switch assembly signal
-
Mirror position request signal (memory and reactivation function)
-
Mirror position request signal (reverse shift-linked function)
| CAN |
| Outer Mirror Control ECU Assembly | Main Body ECU (Multiplex Network Body ECU) | -
Outer mirror state signal
-
Seat memory switch signal
| CAN |
| Certification ECU (Smart Key ECU Assembly) | Main Body ECU (Multiplex Network Body ECU) | Key ID signal | CAN |
| Air Conditioning Amplifier Assembly | Outer Mirror Control ECU Assembly | Mirror heater drive request signal | CAN |
| Hybrid Vehicle Control ECU | Main Body ECU (Multiplex Network Body ECU) | Reverse signal | CAN |
| Rear Window Defogger switch (Air Conditioning Control Assembly) | Air Conditioning Amplifier Assembly | Mirror heater switch (rear window defogger switch) operation signal | LIN |
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SYSTEM DESCRIPTION POWER MIRROR CONTROL SYSTEM (w/ Memory) DESCRIPTION (a) This system has the following functions: electrical remote control mirror function, memory and reactivation function, power r
CAUTION / NOTICE / HINT HINT:
Use the following procedure to troubleshoot the power mirror control system (w/ Memory).
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
OPERATION CHECK CHECK ELECTRICAL REMOTE CONTROL MIRROR FUNCTION (a) Turn the power switch on (IG). (b) b. With the mirror select switch driver side switch on, check that the outer rear view mirror ass
SEE MORE:
DESCRIPTION When an internal malfunction is detected in the millimeter wave radar sensor assembly, a DTC is stored. DTC No. Detection Item DTC Detection Condition Trouble Area C1A8C46 Main Microcomputer in Front Radar Sensor Calibration/Parameter Memory Failure When the engine switc
INSTALLATION PROCEDURE 1. INSTALL TRANSMISSION FLOOR SHIFT ASSEMBLY (a) Engage the clamp to connect the wire harness to the transmission floor shift assembly. (b) Connect the shift lock control ECU connector. (c) Engage the clamp to connect the wire harness to the transmission floor shift assembly.
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