LIN COMMUNICATION SYSTEM DIAGNOSTIC TROUBLE CODE CHART

Main Body ECU (Driver Side junction Block Assembly)
DTC Code Detection Item Trouble Area See page
B1206 P/W Master Switch Communication Stop

1. Multiplex network master switch assembly

2. Main body ECU (Driver side junction block assembly)

3. Wire harness or connector

4. ECU-B NO. 2 fuse

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B124D Lost Communication with AFS LIN

1. Inner rear view mirror assembly

2. Wire harness or connector

3. AFS ECU (headlight swivel ECU assembly)

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B1273 Sliding Roof ECU Communication Stop

1. Sliding roof ECU (Sliding roof drive gear assembly)

2. Main body ECU (Driver side junction block assembly)

3. Wire harness or connector

4. S/R fuse

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B2287 LIN Communication Master Malfunction

1. Multiplex network master switch assembly

2. Main body ECU (Driver side junction block assembly)

3. Wire harness or connector

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B2321 Driver Side Door ECU Communication Stop

1. Power window regulator motor assembly (for Driver side)

2. Main body ECU (Driver side junction block assembly)

3. Multiplex network master switch assembly

4. Wire harness or connector

5. FL DOOR fuse

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B2322 Front Passenger Side Door ECU Communication Stop

1. Power window regulator motor assembly (for Front passenger side)

2. Main body ECU (Driver side junction block assembly)

3. Wire harness or connector

4. FR DOOR fuse

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B2323 Rear Door RH ECU Communication Stop

1. Power window regulator motor assembly (for Rear RH side)

2. Main body ECU (Driver side junction block assembly)

3. Wire harness or connector

4. RR DOOR fuse

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B2324 Rear Door LH ECU Communication Stop

1. Power window regulator motor assembly (for Rear LH side)

2. Main body ECU (Driver side junction block assembly)

3. Wire harness or connector

4. RL DOOR fuse

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B2325 LIN Communication Bus Malfunction

1. Power window regulator motor assembly (for Driver side)

2. Power window regulator motor assembly (for Front passenger side)

3. Power window regulator motor assembly (for Rear RH side)

4. Power window regulator motor assembly (for Rear LH side)

5. Multiplex network master switch assembly

6. Sliding roof ECU (Sliding roof drive gear assembly)

7. Main body ECU (Driver side junction block assembly)

8. Wire harness or connector

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Certification ECU (Smart Key ECU Assembly)
DTC Code Detection Item Trouble Area See page
B2785 Communication Malfunction between ECUs Connected by LIN

1. Certification ECU (Smart key ECU assembly)

2. Power source control ECU (Power management control computer assembly)

3. Steering lock ECU (Steering lock actuator assembly)

4. Wire harness or connector

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B2786 No Response from Steering Lock ECU

1. Steering lock ECU (Steering lock actuator assembly)

2. Certification ECU (Smart key ECU assembly)

3. Wire harness or connector

4. STR LOCK fuse

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B278C Lost Communication with Power Source Control

1. Power source control ECU (Power management control computer assembly)

2. Certification ECU (Smart key ECU assembly)

3. Wire harness or connector

4. AM2 fuse

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AFS ECU (headlight swivel ECU assembly)
DTC Code Detection Item Trouble Area See page
B2432 Lost Communication with Automatic High Beam Sensor

1. Inner rear view mirror assembly

2. Wire harness or connector

3. AFS ECU (headlight swivel ECU assembly)

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