Operation CHARM: Car repair manuals for everyone.

Control Circuit Inspection

Turn the ignition switch to START and check operation of fuel pump relay and fuel pump resistor and relay by listening their operating sound.
- If no sound is heard, inspect the fuel pump relay and fuel pump resistor and relay (speed).
- If the fuel pump relay and fuel pump resistor and relay (speed) are normal, inspect voltage at following terminals. (See POWERTRAIN CONTROL MODULE (PCM) INSPECTION.)
- PCM terminal 1H (Ignition switch START signal)
- PCM terminal 1AF (Fuel pump relay)
- PCM terminal 1AJ (Fuel pump resistor and relay (speed))