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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Lost Communication with Front Shade Module (B2346)
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
Position Initialization Incomplete (Fr Shade) (B2348)
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
SEE MORE:
Removal
REMOVAL CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
PROCEDURE 1. REMOVE HOOD SUPPORT ASSEMBLY NOTICE:
Avoid touching the piston rod as much as possible to prevent foreign matter from attaching to it. Be sure
Removal
REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during rear combination light assembly removal/installation are shown below. Necessary Procedure After Parts R
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