LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2004 >> GX 470 >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Multiplex Communication System - Diagnosis >> Problem Symptoms Table

Problem Symptoms Table

  1. TROUBLESHOOTING FOR EACH PROBLEM SYMPTOM 
    NOTE: Confirm the problem symptom and make an inspection depending on the applicable flow chart.
    WIRING COLOR CHART

    Symptom Suspected Area See
    B1211 (No communication from driver door ECU for more than 10 seconds)
    1. Power window regulator master switch assy (Driver door ECU)
    2. Wire harness
    		 DTC B1211 DRIVER DOOR ECU COMMUNICATION STOP 
    -
    B1213 (No communication from tilt and telescopic ECU for more than 10 seconds)
    1. Multiplex tilt & telescopic ECU (Tilt and telescopic ECU)
    2. Wire harness
    		 DTC B1213 TILT AND TELESCOPIC ECU COMMUNICATION STOP 
    -
    B1214 (Short in communication circuit and +B power source system)
    1. Power window regulator master switch assy (Driver door ECU)
    2. Multiplex tilt & telescopic ECU (Tilt & telescopic ECU)
    3. Multiplex network body ECU No. 2 (Body No. 2 ECU)
    4. Windshield wiper ECU (Wiper ECU)
    5. Theft warning ECU assy (Theft deterrent ECU)
    6. Front power seat switch (Power Seat ECU)
    7. Mayday assy
    8. Outer mirror control ECU assy (Mirror ECU)
    9. Rain sensor
    10. Airbag sensor assy center (Airbag ECU)
    11. Junction Block
    12. Instrument panel J/B assy (Body ECU)
    13. Wire harness
    		 DTC B1211 DRIVER DOOR ECU COMMUNICATION STOP 
    DTC B1213 TILT AND TELESCOPIC ECU COMMUNICATION STOP 
    DTC B1218 BODY NO.2 ECU COMMUNICATION STOP 
    DTC B1245 WIPER ECU COMMUNICATION STOP 
    DTC B1269 THEFT DETERRENT ECU COMMUNICATION STOP 
    DTC B1272 POWER SEAT ECU COMMUNICATION STOP 
    DTC B1275 ACCESSORY BUS BUFFER COMMUNICATION STOP 
    DTC B1276 A/C AND METER ECU (MIRROR) COMMUNICATION STOP 
    DTC B1279 RAIN SENSOR COMMUNICATION STOP 
    DTC B1281 AIRBAG ECU COMMUNICATION STOP 
    -
    -
    -
    B1215 (Short in communication circuit and body ground)
    1. Power window regulator master switch assy (Driver door ECU)
    2. Multiplex tilt & telescopic ECU (Tilt & telescopic ECU)
    3. Multiplex network body ECU No. 2 (Body No. 2 ECU)
    4. Windshield wiper ECU (Wiper ECU)
    5. Theft warning ECU assy (Theft deterrent ECU)
    6. Front power seat switch (Power Seat ECU)
    7. Mayday assy
    8. Outer mirror control ECU assy (Mirror ECU)
    9. Rain sensor
    10. Airbag sensor assy center (Airbag ECU)
    11. Junction Block
    12. Instrument panel J/B assy (Body ECU)
    13. Wire harness
    		 DTC B1211 DRIVER DOOR ECU COMMUNICATION STOP 
    DTC B1213 TILT AND TELESCOPIC ECU COMMUNICATION STOP 
    DTC B1218 BODY NO.2 ECU COMMUNICATION STOP 
    DTC B1245 WIPER ECU COMMUNICATION STOP 
    DTC B1269 THEFT DETERRENT ECU COMMUNICATION STOP 
    DTC B1272 POWER SEAT ECU COMMUNICATION STOP 
    DTC B1275 ACCESSORY BUS BUFFER COMMUNICATION STOP 
    DTC B1276 A/C AND METER ECU (MIRROR) COMMUNICATION STOP 
    DTC B1279 RAIN SENSOR COMMUNICATION STOP 
    DTC B1281 AIRBAG ECU COMMUNICATION STOP 
    -
    -
    -
    B1218 (No communication from body No. 2 ECU for more than 10 seconds)
    1. Multiplex network body ECU No. 2 (Body No. 2 ECU)
    2. Wire harness
    		 DTC B1218 BODY NO.2 ECU COMMUNICATION STOP 
    -
    B1245 (No communication from wiper ECU for more than 10 seconds)
    1. Windshield wiper ECU (Wiper ECU)
    2. Wire harness
    		 DTC B1245 WIPER ECU COMMUNICATION STOP 
    -
    B1269 (No communication from theft deterrent ECU for more than 10 seconds)
    1. Theft warning ECU assy (Theft deterrent ECU)
    2. Wire harness
    		 DTC B1269 THEFT DETERRENT ECU COMMUNICATION STOP 
    -
    B1272 (No communication from power seat ECU for more than 10 seconds)
    1. Front power seat switch (Power seat ECU)
    2. Wire harness
    		 DTC B1272 POWER SEAT ECU COMMUNICATION STOP 
    -
    B1275 (No communication from accessory bus buffer for more than 10 seconds)
    1. Mayday assy
    2. Wire harness
    		 DTC B1275 ACCESSORY BUS BUFFER COMMUNICATION STOP  -
    B1276 (No communication from Mirror ECU for more than 10 seconds)
    1. Outer mirror control ECU assy (Mirror ECU)
    2. Wire harness
    		 DTC B1276 A/C AND METER ECU (MIRROR) COMMUNICATION STOP 
    B1279 (No communication from rain sensor for more than 10 seconds)
    1. Rain sensor
    2. Wire harness
    		 DTC B1279 RAIN SENSOR COMMUNICATION STOP 
    -
    B1281 (No communication from airbag ECU for more than 10 seconds)
    1. Airbag sensor assy center (Airbag ECU)
    2. Wire harness
    		 DTC B1281 AIRBAG ECU COMMUNICATION STOP 
scientia non olet · About LEMON Manuals