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Multiplex Communication System

DETECTION ITEM AND TROUBLE AREA TABLE

DTC No. Detection Item Trouble Area Reference
B1200 MPX Body ECU Stop
  1. Main body ECU RH
  2. Wire harness
 DTC B1200 MPX Body ECU Stop 
B1205 AFS ECU Communication Stop
  1. AFS ECU
  2. Wire harness
 DTC B1205 AFS ECU Communication Stop 
B1206 P/W Master Switch Communication Stop
  1. Multiplex network master switch
  2. Wire harness
 DTC B1206 P/W Master Switch Communication Stop 
B1207 Smart ECU Stop
  1. Certification ECU
  2. Wire harness
 DTC B1207 Smart ECU Stop 
B1208 Passenger Side Outer Mirror ECU
  1. Outer mirror control ECU RH
  2. Wire harness
 DTC B1208 Passenger Side Outer Mirror ECU 
B1209 Driver Side Outer Mirror
  1. Outer mirror control ECU LH
  2. Wire harness
 DTC B1209 Driver Side Outer Mirror 
B1210 Power ECU Stop
  1. Power source control ECU
  2. Wire harness
 DTC B1210 Power ECU Stop 
B1213 Tilt and Telescopic ECU Communication Stop
  1. Tilt and telescopic ECU
  2. Wire harness
 DTC B1213 Tilt and Telescopic ECU Communication Stop 
B1214 Short to B+ in Door System Communication Bus Malfunction
  1. Main body ECU RH
  2. Gateway ECU
  3. Tilt and telescopic ECU
  4. Windshield wiper switch
  5. Power window switch (Front RH)
  6. Power window master switch
  7. Certification ECU
  8. Power source control ECU
  9. Power window switch (Rear LH)
  10. Position control ECU and Switch (Front RH seat)
  11. Position control ECU and Switch (Front LH seat)
  12. Power window switch (Rear RH)
  13. Main body ECU LH
  14. Outer mirror control ECU (RH)
  15. Outer mirror control ECU (LH)
  16. Front controller
  17. Overhead J/B
  18. Rain sensor
  19. Sliding roof control ECU
  20. Wire harness
 DTC B1214: Short to B+ in Door System Communication Bus Malfunction 
B1215 Short to GND in Door System Communication Bus Malfunction
  1. Main body ECU RH
  2. Gateway ECU
  3. Tilt and telescopic ECU
  4. Windshield wiper switch
  5. Power window switch (Front RH)
  6. Power window master switch
  7. Certification ECU
  8. Power source control ECU
  9. Power window switch (Rear LH)
  10. Position control ECU and Switch (Front RH seat)
  11. Position control ECU and Switch (Front LH seat)
  12. Power window switch (Rear RH)
  13. Main body ECU LH
  14. Outer mirror control ECU (RH)
  15. Outer mirror control ECU (LH)
  16. Front controller
  17. Overhead J/B
  18. Rain sensor
  19. Sliding roof control ECU
  20. Wire harness
 DTC B1215: Short to GND in Door System Communication Bus Malfunction 
B1247 Tire Pressure Monitor Receiver Communication Stop
  1. Tire pressure warning ECU
  2. Wire harness
 DTC B1247 Tire Pressure Monitor Receiver Communication Stop 
B1248 AVC-LAN Communication Impossible
  1. AVC-LAN (radio receiver assembly or multi-display assembly)
  2. Wire harness
 DTC B1248 AVC-LAN Communication Impossible 
B1262 A/C ECU Communication Stop
  1. Air conditioning amplifier (A/C ECU)
  2. Wire harness
 DTC B1262 A/C ECU Communication Stop 
B1266 Short to B+ in Instrument Panel System Communication Bus Malfunction
  1. Gateway ECU
  2. Air conditioning amplifier (A/C ECU)
  3. AFS ECU
  4. Clearance warning ECU
  5. Combination meter ECU
  6. Tire pressure monitor ECU
  7. Wire harness
 DTC B1266: Short to B+ in Instrument Panel System Communication Bus Malfunction 
B1267 Short to GND in Instrument Panel System Communication Bus Malfunction
  1. Gateway ECU
  2. Air conditioning amplifier (A/C ECU)
  3. AFS ECU
  4. Clearance warning ECU
  5. Combination meter ECU
  6. Tire pressure monitor ECU
  7. Wire harness
 DTC B1267: Short to GND in Instrument Panel System Communication Bus Malfunction 
B1271 Combination Meter ECU Communication Stop
  1. Combination meter ECU
  2. Wire harness
 DTC B1271 Combination Meter ECU Communication Stop 
B1272 Power Seat ECU Communication Stop
  1. Position control ECU and switch
  2. Wire harness
 DTC B1272 Power Seat ECU Communication Stop 
B1273 Sliding Roof ECU Communication Stop
  1. Sliding roof control ECU
  2. Wire harness
 DTC B1273 Sliding Roof ECU Communication Stop 
B1278 Combination Switch ECU Communication Stop
  1. Combination switch assembly
  2. Wire harness
 DTC B1278 Combination Switch ECU Communication Stop 
B1279 Rain Sensor Communication Stop
  1. Rain sensor
  2. Wire harness
 DTC B1279 Rain Sensor Communication Stop 
B1280 Left Side Junction Block ECU Communication Stop
  1. Main body ECU LH (cowl side J/B LH)
  2. Wire harness
 DTC B1280 Left Side Junction Block ECU Communication Stop 
B1289 Passenger Seat ECU Communication Stop
  1. Position control ECU and switch
  2. Wire harness
 DTC B1289 Passenger Seat ECU Communication Stop 
B1296 Front Light ECU Communication Stop
  1. Front controller
  2. Wire harness
 DTC B1296 Front Light ECU Communication Stop 
B1297 Clearance Sonar ECU Communication Stop
  1. Clearance warning ECU
  2. Wire harness
 DTC B1297 Clearance Sonar ECU Communication Stop 

When "+B of GND short malfunction of communication bus" DTCs (B1266 and B1267) are detected at the same time as "communication stop" DTCs (B1200, B1205, B1216, B1208, B1209, B1213, B1272, B1287 and B1294), please repair the "+B or GND short malfunction of communication bus" DTCs first.

When "+B of GND short malfunction of communication bus" DTCs (B1214 and B1215) are detected at the same time as "communication stop" DTCs (B1245, B1262, B1271, B1273, B1277, B1279 and B1281), please repair the "+B or GND short malfunction of communication bus" DTCs first.

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