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B2780

DTC B2780 Push Switch/Key Unlock Warning Switch Malfunction


DTC Detection Condition:




Wiring Diagram:






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



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