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Diagnostic Trouble Code Chart

WARNING: This page is about a different car, the 2007 Toyota Camry Solara. However, it is still accessible from the selected car via links, so may be relevant.
  1. TRANSPONDER KEY ECU DIAGNOSTIC TROUBLE CODE CHART 

    TRANSPONDER KEY ECU 

    DTC CHART

    DTC Code Detection Item Trouble Area
    B2780  Push Switch / Key Unlock Warning Switch Malfunction
    1. Unlock warning switch assembly
    2. Wire harness
    3. Transponder key ECU assembly
    B2784  Antenna Coil Open / Short
    1. Wire harness
    2. Transponder key amplifier
    3. Transponder key ECU assembly
    B2793  Transponder Chip Malfunction 1. Key
    B2794  Unmatched Encryption Code 1. Key
    B2795  Unmatched Key Code 1. Key
    B2796  No Communication in immobilizer System
    1. key
    2. Transponder key amplifier
    3. Wire harness
    4. Transponder key ECU assembly
    B2797  Communication Malfunction No. 1
    1. Key
    2. Wire harness
    3. Transponder key amplifier
    4. Transponder key ECU assembly
    B2798  Communication Malfunction No. 2 1. Key
  2. ECM DIAGNOSTIC TROUBLE CODE CHART 
    NOTE: The DTCs for the immobilizer system are specified above. If the other codes are output, check the DTC(s) chart for the engine control system.

    ECM 

    ECM DIAGNOSTIC CHART

    DTC Code Detection Item Trouble Area
    B2799  Engine immobilizer System Malfunction
    1. Wire harness
    2. ECM
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