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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 links below.

DIAGNOSTIC TROUBLE CODE CHART

DTC Code Detection Item Trouble Area
B1206  P/W Master Switch Communication Stop
  • Main body ECU (cowl side junction block LH)
  • Master switch
  • Harness or connector
B1273  Sliding Roof ECU Communication Stop
  • Main body ECU (cowl side junction block LH)
  • Sliding roof ECU
  • Harness or connector
B1478  Climate Control Seat ECU Communication Error
  • Air conditioning amplifier
  • Seat climate control ECU LH
  • Seat climate control ECU RH
  • Harness or connector
B2287  LIN Communication Master Malfunction
  • Main body ECU (cowl side junction block LH)
  • Certification ECU (smart key ECU assembly)
  • Harness or connector
B2321  Driver Side Door ECU Communication Stop
  • Main body ECU (cowl side junction block LH)
  • Front power window regulator motor LH
  • Harness or connector
B2322  Front Passenger Side Door ECU Communication Stop
  • Main body ECU (cowl side junction block LH)
  • Front power window regulator motor RH
  • Harness or connector
B2323  Rear Door RH ECU Communication Stop
  • Main body ECU (cowl side junction block LH)
  • Rear power window regulator motor RH
  • Harness or connector
B2324  Rear Door LH ECU Communication Stop
  • Main body ECU (cowl side junction block LH)
  • Rear power window regulator motor LH
  • Harness or connector
B2325  LIN Communication Bus Malfunction
  • Main body ECU (cowl side junction block LH)
  • Master switch
  • Front power window regulator motor LH
  • Front power window regulator motor RH
  • Rear power window regulator motor LH
  • Rear power window regulator motor RH
  • Sliding roof ECU
  • Harness or connector
B2405  Sub Bus LIN Module Communication Malfunction
  • Overhead junction block
  • No. 2 main body ECU
  • Harness or connector
B2785  Communication Malfunction between ECUs Connected by LIN
  • Certification ECU (smart key ECU assembly)
  • Main body ECU (cowl side junction block LH)
  • ID code box (immobilizer code ECU)
  • Steering lock actuator (steering lock ECU)
  • Harness or connector
B2786  No Response from Steering Lock ECU
  • Certification ECU (smart key ECU assembly)
  • Steering lock actuator (steering lock ECU)
  • Harness or connector
B2789  No Response from ID BOX
  • Certification ECU (smart key ECU assembly)
  • ID code box (immobilizer code ECU)
  • Harness or connector