Last Modified: 6-7-2017 6.8:8.0.40 Doc ID: RM0000017WU004X
Model Year Start: 2007 Model: Land Cruiser Prod Date Range: [08/2006 -           ]
Title: MULTIPLEX COMMUNICATION: MULTIPLEX COMMUNICATION SYSTEM: B1211; Driver Door ECU Communication Stop; 2007 MY Land Cruiser [08/2006 -        ]

DTC

B1211

Driver Door ECU Communication Stop

DESCRIPTION

HINT:

"Driver door ECU" refer to the power window regulator master switch assembly.

  • This DTC is output when communication stops between the power window regulator master switch and multiplex network body ECU.

    DTC No.

    DTC Detection Condition

    Trouble Area

    B1211

    No signal from power window regulator master switch assembly for more than 10 seconds.
    • Power window regulator master switch assembly
    • Wire harness

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1.

CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY

(a) Check that the driver door window glass moves up automatically.

HINT:

In this inspection, whether or not the power window regulator master switch functions normally can be diagnosed.

NG

REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY

OK

2.

CHECK WIRE HARNESS (POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY - MULTIPLEX NETWORK BODY ECU)

(a) Pull out the ECU connectors mentioned in the table below.

(b) Check the continuity of the wire harness between the connectors.

Wire harness side connector of ECU

Terminal

Power window regulator master switch assembly - Multiplex network body ECU

P12-7 (MPX1) - B7-24 (MPX1)

OK:

There is continuity between the connectors.

HINT:

If there is an open in any wire harness, repair it.

NG

REPAIR OR REPLACE HARNESS AND CONNECTOR

OK

REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY