LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2009 >> Highlander Limited, FWD >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Engine Immobilizer (Except Hybrid) >> ENGINE IMMOBILISER SYSTEM (w/ Smart Key System) >> Diagnostic Trouble Code Chart

Diagnostic Trouble Code Chart

  1. CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) DIAGNOSTIC TROUBLE CODE CHART 

    CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 

    DIAGNOSTIC TROUBLE CODE CHART

    DTC Code Detection Item Trouble Area
    B2784  Antenna Coil Open/Short
    1. Wire harness or connector
    2. Engine switch
    3. Certification ECU (Smart key ECU assembly)
    B2785  Communication Malfunction between ECUs Connected by LIN
    1. Certification ECU (Smart key ECU assembly)
    2. Main body ECU (instrument panel junction block)
    3. Steering lock ECU
    4. ID code box (Immobiliser code ECU)
    5. Wire harness or connector
    B2786  No Response from Steering Lock ECU
    1. Steering lock ECU
    2. Certification ECU (Smart key ECU assembly)
    3. Wire harness
    B2789  No Response from ID BOX
    1. ID code box (Immobiliser code ECU)
    2. Certification ECU (Smart key ECU assembly)
    3. Wire harness or connector
    B278A  Short to GND in Immobiliser System Power Source Circuit
    1. Wire harness or connector
    2. Engine switch
    3. Certification ECU (Smart key ECU assembly)
    B2790  ID BOX EEPROM Malfunction ID code box (Immobiliser code ECU)
  2. ECM DIAGNOSTIC TROUBLE CODE CHART 

    HINT:

    The DTCs for the engine immobiliser system are specified above. If other codes are output, check the DTC chart for the SFI system.

    ECM 

    DIAGNOSTIC TROUBLE CODE CHART

    DTC Code Detection Item Trouble Area
    B2799  Engine Immobiliser System Malfunction
    1. Wire harness or connector
    2. ECM
    3. ID code box (Immobiliser code ECU)
scientia non olet · About LEMON Manuals