ECU Power Source Circuit
ECU Power Source CircuitDESCRIPTION
When the engine switch is turned on (IG), voltage from the ECM's MREL terminal is applied to the EFI relay. This causes the contacts of the EFI relay to close, which supplies power to terminal +B of the TCM.
WIRING DIAGRAM:
INSPECTION PROCEDURE
Step 1:
Step 2:
