Lexus ES: Motor Control Relay Stuck ON (B2345)
Lexus ES (XZ10) Service Manual / Vehicle Exterior / Sliding Roof / Convertible / Panoramic Moon Roof System / Motor Control Relay Stuck ON (B2345)
DESCRIPTION
This DTC will be stored if the operation of the sliding roof is suspended and a pulse input of 10 Hz or more is detected when the motor relay is off.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B2345 | Motor Control Relay Stuck ON | Position failure (When the sliding roof ECU (sliding roof drive gear assembly) enters fail-safe mode due to a problem with the gear position) | Sliding roof ECU (Sliding roof drive gear assembly) |
CAUTION / NOTICE / HINT
NOTICE:
-
If the sliding roof ECU (sliding roof drive gear assembly) is removed and reinstalled or replaced, the sliding roof ECU (sliding roof drive gear assembly) must be initialized.
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- DTC B2345 is stored in the sliding roof ECU (sliding roof drive gear assembly).
PROCEDURE
| 1. | CHECK FOR DTC |
(a) Clear the DTCs.
Body Electrical > Sliding Roof > Clear DTCs(b) Check for DTCs.
Body Electrical > Sliding Roof > Trouble CodesOK:
DTC B2345 is not output.
| OK | .gif) | USE SIMULATION METHOD TO CHECK |
| NG | | REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) |
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DESCRIPTION This DTC is stored when LIN communication between the sliding roof ECU (sliding roof drive gear assembly) and roof sunshade ECU (sliding roof drive gear assembly) stops for 10 seconds or m
Sensor (Motor) Failure (Fr Shade) (B2347,B2349)
DESCRIPTION When the roof sunshade ECU (sliding roof drive gear assembly) detects a motor malfunction and the sliding roof operation is stopped, DTC B2347 is stored. When the roof sunshade ECU (slidin
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DESCRIPTION This DTC is stored when the roof sunshade ECU (sliding roof drive gear assembly) has not been initialized. DTC No. Detection Item DTC Detection Condition Trouble Area B2348
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Repair
REPAIR CAUTION / NOTICE / HINT HINT:
Use the same procedure for bank 1 and bank 2.
The following procedure is for bank 2.
PROCEDURE 1. REPAIR INTAKE VALVE SEAT NOTICE:
While repairing the intake valve seat, make sure to constantly check the valve seat width and valve seating position.
R
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE NOTICE:
Before replacing the hybrid vehicle control ECU, refer to Registration.
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