Last Modified: 4-30-2014 6.6 S Doc ID: RM0000017WQ001X
Model Year: 2006 Model: LX470 Prod Date Range: [05/2005 -           ]
Title: MULTIPLEX COMMUNICATION: MULTIPLEX COMMUNICATION SYSTEM: DIAGNOSTIC TROUBLE CODE CHART; 2006 MY LX470 [05/2005 -        ]

DIAGNOSTIC TROUBLE CODE CHART

If a malfunction code is displayed during DTC check, check the circuit corresponding to the code in the table below. Proceed to the page given for the circuit.

DTC No.

Detection Item

Trouble Area

See page

B1201

Mayday ECU Bus Malfunction

- Telephone ECU assembly (mayday ECU)

- Wire harness

2006 MY LX470 [05/2005 -        ]; MULTIPLEX COMMUNICATION: MULTIPLEX COMMUNICATION SYSTEM: B1201; Mayday ECU Communication Stop

B1211

Driver Door ECU Communication Stop

- Power window regulator master switch assembly (driver door ECU)

- Wire harness

2006 MY LX470 [05/2005 -        ]; MULTIPLEX COMMUNICATION: MULTIPLEX COMMUNICATION SYSTEM: B1211; Driver Door ECU Communication Stop

B1213

Tilt and Telescopic ECU Communication Stop

- Multiplex tilt and telescopic ECU

- Wire harness

2006 MY LX470 [05/2005 -        ]; MULTIPLEX COMMUNICATION: MULTIPLEX COMMUNICATION SYSTEM: B1213; Tilt and Telescopic ECU Communication Stop

B1214

Door System Communication Bus Malfunction (+B Short)

- Power window regulator master switch assembly

- Power window regulator switch assembly (front RH door ECU)

- Power window regulator switch assembly (rear LH door ECU)

- Power window regulator switch assembly (rear RH door ECU)

- Multiplex network body ECU (main)

- Wire harness

2006 MY LX470 [05/2005 -        ]; MULTIPLEX COMMUNICATION: MULTIPLEX COMMUNICATION SYSTEM: B1214,B1215; Short to B+ in Door System Communication Bus Malfunction

B1215

Door System Communication Bus Malfunction (GND Short)

- Power window regulator master switch assembly

- Power window regulator switch assembly (front RH door ECU

- Power window regulator switch assembly (rear LH door ECU)

- Power window regulator switch assembly (rear RH door ECU)

- Multiplex network body ECU (main)

- Wire harness

2006 MY LX470 [05/2005 -        ]; MULTIPLEX COMMUNICATION: MULTIPLEX COMMUNICATION SYSTEM: B1214,B1215; Short to B+ in Door System Communication Bus Malfunction

B1218

Body No. 2 ECU Communication Stop

- Multiplex network body ECU No. 2 (sub)

- Wire harness

2006 MY LX470 [05/2005 -        ]; MULTIPLEX COMMUNICATION: MULTIPLEX COMMUNICATION SYSTEM: B1218; Body No. 2 ECU Communication Stop

B1245

Wiper ECU Communication Stop

- Windshield wiper ECU

- Wire harness

2006 MY LX470 [05/2005 -        ]; MULTIPLEX COMMUNICATION: MULTIPLEX COMMUNICATION SYSTEM: B1245; Wiper ECU Communication Stop

B1269

Theft Deterrent ECU Communication Stop

- Theft warning ECU assembly

- Wire harness

2006 MY LX470 [05/2005 -        ]; MULTIPLEX COMMUNICATION: MULTIPLEX COMMUNICATION SYSTEM: B1269; Theft Deterrent ECU Communication Stop

B1272

Power Seat ECU Communication Stop

- Position control ECU assembly (driver seat ECU)

- Wire harness

2006 MY LX470 [05/2005 -        ]; MULTIPLEX COMMUNICATION: MULTIPLEX COMMUNICATION SYSTEM: B1272; Power Seat ECU Communication Stop

B1273

Sliding Roof ECU Communication Stop

- Sliding roof driver gear sub-assembly ECU (sliding roof ECU)

- Wire harness

2006 MY LX470 [05/2005 -        ]; MULTIPLEX COMMUNICATION: MULTIPLEX COMMUNICATION SYSTEM: B1273; Sliding Roof ECU Communication Stop

B1276

Power Mirror Control ECU Communication Stop

- Outer mirror control ECU assembly

- Wire harness

2006 MY LX470 [05/2005 -        ]; MULTIPLEX COMMUNICATION: MULTIPLEX COMMUNICATION SYSTEM: B1276; Power Mirror Control ECU Communication Stop

B1279

Rain Sensor Communication Stop

- Rain sensor

- Wire harness

2006 MY LX470 [05/2005 -        ]; MULTIPLEX COMMUNICATION: MULTIPLEX COMMUNICATION SYSTEM: B1279; Rain Sensor Communication Stop

HINT:

When DTC of "+B or GND short malfunction of communication bus (such as B1214, B1215, etc.)" and "communication stop (such as B1211, B1212, etc.)" are detected simultaneously, repair DTC of "+B or GND short malfunction of communication bus" first.