Fuel Pump Control Unit: Testing and Inspection

PROCEDURE:
- Disconnect fuel module
- With test light and ignition "ON", probe connector terminal "C" to ground. Circuit is OK if light is "ON". There is an open if the light is "OFF".
- Probe connector terminals "C" to "D" with test light. Circuit is OK if light is "ON". There is an open in the ground circuit if light is "OFF".
- Ignition "OFF", probe connector terminals "A" to "D" with test light. Ignition "ON", test light should illuminate for two seconds. There is an open in the circuit if the light is "OFF".
- Replace fuel module if there is no twenty second fuel pump operation.