B1237

CIRCUIT DESCRIPTION

DTC Detecting Condition:

This DTC is output when failure of the jam protection limit switch circuit is detected.

The jam protection limit switch is built in the power window motor.
This switch is OFF when the window stays between the fully closed position and 4 mm under the full-closed position, and Rear LH Door ECU reads this signal.

HINT: When the door ECU detects the condition that the power window is lowered to turn the limit switch from OFF to ON, this DTC is cleared.

Wiring Diagram:

Steps 1 - 4:

INSPECTION PROCEDURE

HINT: In case of not using the LEXUS hand-held tester, start from step 3.