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Home >> Toyota >> 2008 >> FJ Cruiser RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 183 (Engine Immobilizer) >> Engine Immobilizer System >> DTC B2780 Push Switch / Key Unlock Warning Switch Malfunction >> Description

DTC B2780 Push Switch / Key Unlock Warning Switch Malfunction: Description

WARNING: This page is about a different car, the 2008 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

This DTC is output if the transponder key ECU does not detect that the unlock warning switch is ON even when the ignition switch is ON. Under normal conditions, the unlock warning switch is ON when the ignition switch is ON.

DTC DETECTION CONDITIONS

DTC No. DTC Detection Conditions Trouble Areas
B2780 Unlock warning switch ON is not detected when ignition switch is ON
  • Transponder key ECU
  • Unlock warning switch
  • Wire harness