B278A

DTC B278A IMMOBILIZER POWER SOURCE CHARGE MALFUNCTION (VC5 GND SHORT)

CIRCUIT DESCRIPTION

DTC Detecting Condition:

- Operating the engine switch starts the engine or changes the power source status (ACC/IG/OFF/START).
- The engine switch is a momentary type switch which turns on only while the switch is held down. The certification ECU always stores the power source status (OFF/ACC/ON). If the battery has been removed and reinstalled, the power source status maintained before removal is restored.
- The transponder amplifier is built into the engine switch.

Wiring Diagram:

Step 1-2:

INSPECTION PROCEDURE