A-3: Pcm Power & Ground Circuit Check/Engine Does Not Start: Condition

When ignition is turned on, main relay is energized by the Powertrain Control Module (PCM) and supplies PCM with main power. As PCM is supplied with main power, it will turn on the MIL. After engine starts, MIL will turn off if no malfunction is detected. If a malfunction is detected, MIL will remain on until system is repaired.