B2278

DTC B2278 MAIN SWITCH (POWER SWITCH) MALFUNCTION

CIRCUIT DESCRIPTION

DTC Detection Condition:

This DTC is output when 1) a malfunction is detected between the power source control ECU and the power switch; or 2) either of the switches inside the power switch is malfunctioning.

Wiring Diagram:

Step 1 - 2:

INSPECTION PROCEDURE