Lexus ES: System Diagram
SYSTEM DIAGRAM

Communication Table
| Sender | Receiver | Signal | Line |
| Main Body ECU (Multiplex Network Body ECU) | Sliding Roof ECU (Sliding Roof Drive Gear Sub-assembly) | -
Sliding roof operation permission signal
-
IG signal
-
Front door courtesy light switch assembly signal
-
Key-linked operation signal
-
Wireless transmitter-linked operation signal
-
Vehicle speed signal
| LIN |
| Sliding Roof ECU (Sliding Roof Drive Gear Sub-assembly) | Main Body ECU (Multiplex Network Body ECU) | Sliding roof position signal | LIN |
| Combination Meter Assembly | Main Body ECU (Multiplex Network Body ECU) | Vehicle speed signal | CAN |
| Main Body ECU (Multiplex Network Body ECU) | Combination Meter Assembly | Sliding roof open warning request signal | CAN |
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SYSTEM DESCRIPTION SLIDING ROOF SYSTEM DESCRIPTION (a) The sliding roof system controls the sliding roof operation using the sliding roof ECU (sliding roof drive gear sub-assembly). Operating the slid
CAUTION / NOTICE / HINT HINT:
Use the following procedure to troubleshoot the sliding roof system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
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OPERATION CHECK CHECK AUTO OPERATION FUNCTION NOTICE:
Make sure that initialization has been completed before performing this inspection.
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The sliding roof auto operation can be custo
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PROBLEM SYMPTOMS TABLE NOTICE:
The following inspection procedures for the parking assist monitor system are based on the assumption that the audio and visual system*1 or navigation system*2 is normal. If the audio and visual system*1 or navigation system*2 has any malfunctions, first proceed wit
INSPECTION PROCEDURE 1. INSPECT CAMSHAFT TIMING GEAR BOLT (a) Check the stroke of the plunger in the center of the camshaft timing gear bolt. Standard Stroke: 2.2 mm (0.0866 in.) or more HINT: When pressing the plunger, there may be a stepped feeling. This is not a malfunction. If the result is
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