Section 197 (Multiplex Communication System - Diagnostics)
WARNING: This page is about a different car, the 2004 Lexus GS 430 and 2004 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
- How To Proceed With Troubleshooting
- Customer Problem Analysis Check
- Pre-Check
- Diagnostic Trouble Code Chart
- Parts Location
- Terminals Of Ecu
- Circuit Inspection
- DTC B1211 / 11: Driver door ECU communication stop
- DTC B1212 / 12: Front passenger door ECU communication stop.
- DTC B1213 / 13: Tilt and telescopic ECU communication stop.
- DTC B1214 / 14, B1215 / 15: Door system communication bus malfunction (+B short)/(GND short)
- DTC B1216 / 16: Rear right door ECU communication stop
- DTC B1217 / 17: Rear left door ECU communication stop
- DTC B1218 / 18: Body ECU No. 2 communication stop
- DTC B1221 / 21, B1222 / 22, B1223 / 23, B1224 / 24, B1225 / 25, B1226 / 26, B1241 / 41, B1252 / 52: Power window/door lock switch circuit on driver door, Power window/door lock switch circuit on passenger/rear right/rear left/ door, Body No. 1/No. 2 ECU switch circuit diagnosis
- DTC B1231 / 31, B1232/32, B1234 / 34, B1236 / 36, B1238 / 38: Jam protection limit/pulse switch circuit on driver/passenger/rear right/rear left door
- DTC B1233 / 33, B1235 / 35, B1237 / 37: Jam protection limit switch circuit on passenger/rear right/rear left door
- DTC B1242 / 42: Wireless door lock tuner circuit malfunction
- DTC B1244 / 44: Light sensor circuit malfunction
- DTC B1261 / 61: ECM communication stop
- DTC B1262 / 62: A/C amplifier communication stop
- DTC B1266 / 66, B1267 / 67: Instrument panel system communication bus malfunction (+B short)/(GND short)
- DTC B1271 / 71: Combination meter ECU communication stop
- DTC B1272 / 72: Power seat ECU communication stop (w/ Seat memory vehicle only)
- DTC B1273 / 73: Sliding roof ECU communication stop (w/ Sliding roof vehicle only)
- DTC B1281 / 81: Airbag sensor assembly communication stop
- DTC B1285 / 85: Steering pad switch communication stop (GS 430 only)
- DTC B1293 / 93: Gateway ECU communication stop