B2780

DTC B2780 PUSH SWITCH/KEY UNLOCK WARNING SWITCH MALFUNCTION (Except 2AZ-FE [PZEV])

CIRCUIT DESCRIPTION

DTC Detection Condition:

This DTC will be output if the transponder key ECU does not detect that the un-lock warning switch is ON even when the ignition switch is ON (Under the normal condition, the un-lock warning switch is ON when the ignition switch is ON).

Wiring Diagram:

Step 1 - 2:

Step 3:

INSPECTION PROCEDURE

HINT: Start the inspection from step 1 when using the hand-held tester and start from step 2 when not using the hand-held tester.