Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM1000000018FM9
Model Year Start: 2018 Model: Sienna Prod Date Range: [11/2017 -           ]
Title: NETWORKING: LIN COMMUNICATION SYSTEM: DIAGNOSTIC TROUBLE CODE CHART; 2018 - 2020 MY Sienna [11/2017 -        ]

DIAGNOSTIC TROUBLE CODE CHART

HINT:

  • If a trouble code is output during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the "See page" below.

DTC Code

Detection Item

Trouble Area

See page

B1206

P/W Master Switch Communication Stop

- Main body ECU

- Instrument panel junction block assembly

- Multiplex network master switch assembly

- Harness or connector

2016 - 2020 MY Sienna [12/2015 -        ]; NETWORKING: LIN COMMUNICATION SYSTEM: B1206; P/W Master Switch Communication Stop

B2287*1

LIN Communication Master Malfunction

- Power management control ECU

- Certification ECU (Smart key ECU)

- Harness or connector

2016 - 2020 MY Sienna [12/2015 -        ]; NETWORKING: LIN COMMUNICATION SYSTEM: B2287,B278C; LIN Communication Master Malfunction

B2321

Driver Side Door ECU Communication Stop

- Main body ECU

- Instrument panel junction block assembly

- Front power window regulator motor assembly LH

- Harness or connector

2016 - 2020 MY Sienna [12/2015 -        ]; NETWORKING: LIN COMMUNICATION SYSTEM: B2321; Driver Side Door ECU Communication Stop

B2322

Front Passenger Side Door ECU Communication Stop

- Main body ECU

- Instrument panel junction block assembly

- Front power window regulator motor assembly RH

- Harness or connector

2016 - 2020 MY Sienna [12/2015 -        ]; NETWORKING: LIN COMMUNICATION SYSTEM: B2322; Front Passenger Side Door ECU Communication Stop

B2323

Rear Door RH ECU Communication Stop

- Main body ECU

- Instrument panel junction block assembly

- Rear power window regulator motor assembly RH

- Harness or connector

2016 - 2020 MY Sienna [12/2015 -        ]; NETWORKING: LIN COMMUNICATION SYSTEM: B2323; Rear Door RH ECU Communication Stop

B2324

Rear Door LH ECU Communication Stop

- Main body ECU

- Instrument panel junction block assembly

- Rear power window regulator motor assembly LH

- Harness or connector

2016 - 2020 MY Sienna [12/2015 -        ]; NETWORKING: LIN COMMUNICATION SYSTEM: B2324; Rear Door LH ECU Communication Stop

B2325

LIN Communication Bus Malfunction

- Main body ECU

- Instrument panel junction block assembly

- 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

- Harness or connector

2016 - 2020 MY Sienna [12/2015 -        ]; NETWORKING: LIN COMMUNICATION SYSTEM: B2325; LIN Communication Bus Malfunction

B2785*1

Communication Malfunction between ECUs Connected by LIN

- Certification ECU (Smart key ECU)

- Steering lock actuator assembly (Steering lock ECU)

- Power management control ECU

- Harness or connector

2016 - 2020 MY Sienna [12/2015 -        ]; NETWORKING: LIN COMMUNICATION SYSTEM: B2785; Communication Malfunction between ECUs Connected by LIN

B2786*1

No Response from Steering Lock ECU

- Certification ECU (Smart key ECU)

- Steering lock actuator assembly (Steering lock ECU)

- Harness or connector

2018 - 2020 MY Sienna [11/2017 -        ]; NETWORKING: LIN COMMUNICATION SYSTEM: B2786; No Response from Steering Lock ECU

B278C*1

Lost Communication with Power Source Control

- Power management control ECU

- Certification ECU (Smart key ECU)

- Harness or connector

2016 - 2020 MY Sienna [12/2015 -        ]; NETWORKING: LIN COMMUNICATION SYSTEM: B2287,B278C; LIN Communication Master Malfunction

  • *1: w/ Smart Key System