Diagnostic Trouble Code Definitions

WARNING: This page is about a different car, the 2003 Lexus GS 430, 2003 Lexus GS 300, 2002 Lexus GS 430, and 2002 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.

DIAGNOSTIC TROUBLE CODE INDEX

DTC ⁽¹⁾

Description

B1211/11

Driver Door ECU Communication Stopped

B1212/12

Front Passenger Door ECU Communication Stopped

B1213/13

Tilt & Telescopic ECU Communication Stopped

B1214/14 ⁽²⁾

Door System Communication Bus Malfunction (Short To Voltage)

B1215/15 ⁽²⁾

Door System Communication Bus Malfunction (Short To Ground)

B1216/16

Rear Right Door ECU Communication Stopped

B1217/17

Rear Left Door ECU Communication Stopped

B1218/18

Body ECU No. 2 Communication Stopped

B1221/21 ⁽³⁾

Power Window Switch Circuit On Driver Door

B1222/22 ⁽³⁾

Door Lock Switch Circuit On Driver Door

B1223/23 ⁽³⁾

Power Window Switch Circuit On Passenger Door

B1224/24 ⁽³⁾

Door Lock Switch Circuit On Passenger Door

B1225/25 ⁽³⁾

Power Window Switch Circuit On Rear Right Door

B1226/26 ⁽³⁾

Power Window Switch Circuit On Rear Left Door

B1231/31

Jam Protection Limit Switch Circuit On Driver Door

B1232/32

Jam Protection Pulse Switch Circuit On Driver Door

B1233/33

Jam Protection Limit Switch Circuit On Passenger Door

B1234/34

Jam Protection Pulse Switch Circuit On Passenger Door

B1235/35

Jam Protection Limit Switch Circuit On Rear Right Door

B1236/36

Jam Protection Pulse Switch Circuit On Rear Right Door

B1237/37

Jam Protection Limit Switch Circuit On Rear Left Door

B1238/38

Jam Protection Pulse Switch Circuit On Rear Left Door

B1241/41 ⁽³⁾

Body ECU No. 1 Switch Circuit Diagnosis

B1242/42

Wireless Door Lock Tuner Circuit Malfunction

B1244/44

Light Sensor Circuit Malfunction

B1252/52 ⁽³⁾

Body ECU No. 2 Switch Circuit Diagnosis

B1261/61 ⁽⁴⁾

ECM Communication Stop

B1262/62

A/C Amplifier Communication Stop

B1266/66 ⁽⁴⁾⁽²⁾

Instrument Panel System Communication Bus Malfunction (Short To Voltage)

B1267/67 ⁽⁴⁾⁽²⁾

Instrument Panel System Communication Bus Malfunction (Short To Ground)

B1271/71 ⁽⁴⁾

Instrument Panel ECU Communication Stopped

B1272/72

Power Seat ECU Communication Stopped (W/ Seat Memory Only)

B1273/73

Moon Roof ECU Communication Stopped

B1275/75

Accessory Bus Buffer Communication Stopped

B1281/81

Air Bag Sensor Assembly Communication Stopped

B1285/85 ⁽⁵⁾

Steering Pad Switch Communication Stopped

B1293/93

Gateway ECU Communication Stopped

⁽¹⁾	Four-digit "B" code is displayed on scan tool. Two-digit code is output by flashes of the OPEN DOOR indicator light. Codes listed in this table are only for testing covered in this article.

⁽²⁾	When some of the DTCs 14, 15, 66, 67 is output, the DTC of other ECU communication stop is also output. In this case, please repair DTCs 14, 15, 66, 67 first. The following shows DTCs which are output when +B (battery voltage) or GND short occurs on communication bus. See Fig 1.

⁽³⁾	DTC 21-26, 41 and 52 don't mean that the switch is abnormal but notifies how the switch works. If the DTC is not output when operating the switch, it means failure of switch contact. If the DTC is output when not opening switch, it means sticking of the switch.

⁽⁴⁾	DTC 61, 66, 67 and 71 are not output through the OPEN DOOR warning light on the instrument panel of the system itself.

⁽⁵⁾	This DTC is for GS 430 only.

Fig 1: Identifying Communication Bus Voltage Or Ground Short DTCs