Lexus ES manuals

Lexus ES: 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

  • 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 Codes

OK:

DTC B234A is not output.

OK

USE SIMULATION METHOD TO CHECK

NG

REPLACE ROOF SUNSHADE ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)

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