Diagnostic Trouble Code Chart
WARNING: This page is about a different car, the 2010 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.
HINT:
If a trouble code is output during the DTC check, inspect the trouble areas listed for that code. For details of code, refer to the table below.
MAIN BODY ECU
| DTC Code | Detection Item | Trouble Area | Refer To |
|---|---|---|---|
| B1206 | P/W Master Switch Communication Stop | - Multiplex network master switch assembly - Main body ECU (multiplex network body ECU) - Harness or connector |
Refer to DTC B1206: P/W Master Switch Communication Stop |
| B1273 | Sliding Roof ECU Communication Stop | - Sliding roof drive gear sub-assembly - Main body ECU (multiplex network body ECU) - Harness or connector |
Refer to DTC B1273: Sliding Roof ECU Communication Stop |
| B1287 | Back Door ECU Communication Stop | - Multiplex network door ECU (back door P/W) - Main body ECU (multiplex network body ECU) - Harness or connector |
Refer to DTC B1287: Back Door ECU Communication Stop |
| B2321 | Driver Side Door ECU Communication Stop | - Front power window regulator motor assembly LH - Main body ECU (multiplex network body ECU) - Harness or connector |
Refer to DTC B2321: Driver Side Door ECU Communication Stop |
| B2322 | Front Passenger Side Door ECU Communication Stop | - Front power window regulator motor assembly RH - Main body ECU (multiplex network body ECU) - Harness or connector |
Refer to DTC B2322: Front Passenger Side Door ECU Communication Stop |
| B2323 | Rear Door RH ECU Communication Stop | - Rear power window regulator motor assembly RH - Main body ECU (multiplex network body ECU) - Harness or connector |
Refer to DTC B2323: Rear Door RH ECU Communication Stop |
| B2324 | Rear Door LH ECU Communication Stop | - Rear power window regulator motor assembly LH - Main body ECU (multiplex network body ECU) - Harness or connector |
Refer to DTC B2324: Rear Door LH ECU Communication Stop |
| B2325 | LIN Communication Bus Malfunction | - Multiplex network master switch assembly - Front power window regulator motor assembly LH - Front power window regulator motor assembly RH - Rear power window regulator motor assembly LH - Rear power window regulator motor assembly RH - Multiplex network door ECU (back door P/W) - Sliding roof drive gear sub-assembly* - Main body ECU (multiplex network body ECU) - Harness or connector |
Refer to DTC B2325: LIN Communication Bus Malfunction |
- *: w/ Sliding Roof System
POWER MANAGEMENT CONTROL ECU
| DTC Code | Detection Item | Trouble Area | Refer To |
|---|---|---|---|
| B2287 | LIN Communication Master Malfunction | - Certification ECU - Power management control ECU - Harness or connector |
Refer to DTC B2287: LIN Communication Master Malfunction; DTC B278C: Lost Communication with Power Source Control |
CERTIFICATION ECU
| DTC Code | Detection Item | Trouble Area | Refer To |
|---|---|---|---|
| B2785 | Communication Malfunction between ECUs Connected by LIN | - Certification ECU - Power management control ECU - ID code box - Steering lock actuator assembly (steering lock ECU) - Harness or connector |
Refer to DTC B2785: Communication Malfunction between ECUs Connected by LIN |
| B2786 | No Response from Steering Lock ECU | - Steering lock actuator assembly (steering lock ECU) - Certification ECU - Harness or connector |
Refer to DTC B2786: No Response from Steering Lock ECU |
| B2789 | No Response from ID BOX | - ID code box - Certification ECU - Harness or connector |
Refer to DTC B2789: No Response from ID BOX |
| B278C | Lost Communication with Power Source Control | - Certification ECU - Power management control ECU - Harness or connector |
Refer to DTC B2287: LIN Communication Master Malfunction; DTC B278C: Lost Communication with Power Source Control |
MULTIPLEX NETWORK DOOR ECU (BACK DOOR P/W)
| DTC Code | Detection Item | Trouble Area | Refer To |
|---|---|---|---|
| B2327 | Lost Communication with Back Door Power Window ECU (Abnormal Power Supply) | - Multiplex network door ECU (back door P/W) - Back door power window regulator motor assembly - Harness or connector |
Refer to DTC B2327: Lost Communication with Back Door Power Window ECU (Abnormal Power Supply); DTC B2328: Back Door Power Window ECU Communication Malfunction |
| B2328 | Back Door Power Window ECU Communication Malfunction | - Multiplex network door ECU (back door P/W) - Back door power window regulator motor assembly - Harness or connector |
Refer to DTC B2327: Lost Communication with Back Door Power Window ECU (Abnormal Power Supply); DTC B2328: Back Door Power Window ECU Communication Malfunction |
DRIVE MONITOR SWITCH
| DTC Code | Detection Item | Trouble Area | Refer To |
|---|---|---|---|
| B2661 | Lost Communication with Combination Meter | - Drive monitor switch - Combination meter assembly - Harness or connector |
Refer to DTC B2661: Lost Communication with Combination Meter |
| B2662 | Lost Communication with Clock/Outside Temperature Display | - Drive monitor switch - Accessory meter assembly - Harness or connector |
Refer to DTC B2662: Lost Communication with Clock/Outside Temperature Display |