Last Modified: 11-29-2007 1.6 J
Service Category: Vehicle Exterior Section: Window/Glass
Model Year: 2008 Model: Sequoia Doc ID: RM000003F6R000X
Title: WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM: DESCRIPTION (2008 Sequoia)

All Power Windows does not Operate with Door Key Cylinder

DESCRIPTION

When the driver door key cylinder (key linked switch) is turned, the following occurs: 1) the door lock motor receives the signal; 2) the main body ECU sends the signal to the power window regulator motor; and 3) the power window motors are activated.

WIRING DIAGRAM



INSPECTION PROCEDURE

PROCEDURE

1.

CHECK LIN COMMUNICATION SYSTEM

(a) Check for LIN communication system DTCs related to the power window control system.

OK:

LIN communication system DTCs are not output.

OK

2.

CHECK DTC (B2312)

(a) Check if DTC B2312 is output WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM: DTC CHECK / CLEAR (2008 Sequoia) .

OK:

DTC B2312 is not output.

OK

3.

READ VALUE USING TECHSTREAM (DOOR LOCK SWITCH)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Main Body / Data List.

(e) According to the display on the Techstream, read the Data List.

Main Body

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

Door Key SW-Lock

Door key linked lock switch signal / ON or OFF

ON: Driver side door key cylinder turned to lock position

OFF: Driver side door key cylinder not turned

-

D Door Key SW-UL

Door key linked unlock switch signal / ON or OFF

ON: Driver side door key cylinder turned to unlock position

OFF: Driver side door key cylinder not turned

-

OK:

On the Techstream screen, each item changes between ON and OFF according to above chart.

OK

4.

CHECK POWER WINDOW MANUAL FUNCTION

(a) Check that the manual UP/DOWN function using the power window regulator switch can operate the front door power window LH and RH WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM: OPERATION CHECK (2008 Sequoia) .

OK