WINDSHIELD / WINDOWGLASS: POWER WINDOW CONTROL SYSTEM: B1232; Jam Protection Pulse Switch Circuit on Driver Door; 2007 MY LX470 [08/2006

Last Modified: 7-3-2017	6.8:8.0.40	Doc ID: RM000001BA2004X
Model Year Start: 2007	Model: LX470	Prod Date Range: [08/2006 - ]
Title: WINDSHIELD / WINDOWGLASS: POWER WINDOW CONTROL SYSTEM: B1232; Jam Protection Pulse Switch Circuit on Driver Door; 2007 MY LX470 [08/2006 - ]

DTC

B1232

Jam Protection Pulse Switch Circuit on Driver Door

DESCRIPTION

This DTC is output when failure of the jam protection pulse switch circuit is detected. The jam protection pulse switch is built into the power window regulator motor assembly. This switch is OFF when the window stays between the fully closed position and 4 mm (0.16 in) below the full closed position and the power window regulator master switch reads this signal.

DTC No.	DTC Detection Condition	Trouble Area
B1232	No change in pulse switch for more than 2.0 seconds even if operating glass down when pulse switch is OFF (window glass is fully closed)	Front power window regulator motor assembly LH (jam protection pulse switch) Power window regulator master switch assembly Wire harness

WIRING DIAGRAM

INSPECTION PROCEDURE

HINT:

When using the intelligent tester, start from *1. When not using the intelligent tester, start from *2.

PROCEDURE

1.	CHECK FOR DTC *1

(a) Delete the DTC .

(b) Recheck for the DTC when the power window is lowered from the fully closed position to half opened position.

OK:

DTC B1232 is not output.

NO PROBLEM (IT IS SUSPECTED THAT DTC WAS DETECTED BY ECU WITH ANY FAILURE IN PAST)

2.	INSPECT FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (JAM PROTECTION PULSE SWITCH) *2

(a) Refer to motor inspection .

REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH

3.	CHECK WIRE HARNESS (POWER WINDOW MASTER SWITCH ASSEMBLY - JAM PROTECTION PULSE SWITCH)

(a) Refer to inspection .

REPAIR OR REPLACE HARNESS AND CONNECTOR

REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY