Lexus ES: Motor Control Relay Stuck ON (Fr Shade) (B234A)
Lexus ES (XZ10) Service Manual / Vehicle Exterior / Sliding Roof / Convertible / Panoramic Moon Roof System / Motor Control Relay Stuck ON (Fr Shade) (B234A)
DESCRIPTION
This DTC will be stored if the operation of the front roof sunshade 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 |
|---|---|---|---|
| B234A | Motor Control Relay Stuck ON (Fr Shade) | Position failure (When the roof sunshade ECU (sliding roof drive gear assembly) enters fail-safe mode due to a problem with the gear position) | Roof sunshade ECU (sliding roof drive gear assembly) |
CAUTION / NOTICE / HINT
NOTICE:
-
When the roof sunshade ECU (sliding roof drive gear assembly) is removed and reinstalled or replaced, the roof sunshade ECU (sliding roof drive gear assembly) must be initialized.
Click here
.gif)
- DTC B234A is stored in the roof sunshade 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 B234A is not output.
| OK | .gif) | USE SIMULATION METHOD TO CHECK |
| NG | | REPLACE ROOF SUNSHADE ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) |
READ NEXT:
Remote Control System does not Operate
DESCRIPTION The main body ECU (multiplex network body ECU) receives remote control signals from the driver door key cylinder or wireless transmitter. Then, the main body ECU (multiplex network body EC
Key-off Operation Function Operates even if Operating Conditions are not Satisfied
DESCRIPTION According to the panoramic moon roof switch (map light sub-assembly) operation, the sliding roof ECU (sliding roof drive gear assembly) or roof sunshade ECU (sliding roof drive gear assemb
Panoramic Moon Roof System does not Operate
DESCRIPTION The sliding roof ECU (sliding roof drive gear assembly) and roof sunshade ECU (sliding roof drive gear assembly) receive each other's position information from the main body ECU (multiplex
SEE MORE:
Components
COMPONENTS ILLUSTRATION *1 FRONT NO. 1 STABILIZER BAR BUSHING *2 FRONT NO. 1 STABILIZER BRACKET LH *3 FRONT NO. 1 STABILIZER BRACKET RH *4 FRONT STABILIZER BAR *5 FRONT STABILIZER LINK ASSEMBLY LH *6 FRONT STABILIZER LINK ASSEMBLY RH *7 CAP - - Tighteni
Speed Signal Malfunction (B15C2)
DESCRIPTION The navigation ECU receives a vehicle speed signal from the combination meter assembly and information from the navigation antenna assembly, and then adjusts the vehicle position on the map. The navigation ECU stores this DTC when the difference between the speed information that the nav
© 2016-2026 Copyright www.lexguide.net
