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Diagnostic Trouble Code Chart

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

MULTIPLEX COMMUNICATION SYSTEM (BEAN)

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

If "+B or GND short malfunction of communication bus" DTCs (B1214 and B1215) are detected at the same time as "communication stop" DTCs (B1200, B1206, B1207, B1208, B1209, B1210, B1213, B1272, B1273, B1278, B1279, B1280, B1289 and B1296), perform troubleshooting for the "+B or GND short malfunction of communication bus" DTCs first.

If "+B or GND short malfunction of communication bus" DTCs (B1266 and B1267) are detected at the same time as "communication stop" DTCs (B1247, B1262, B1271 and B1297), perform troubleshooting for the "+B or GND short malfunction of communication bus "DTCs first.

HINT: 

*1: w/ Sliding Roof

*2: w/ Occupant Classification System

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