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Home >> Mercury >> 1995 >> Cougar/XR7 V6-232 3.8L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Pinpoint Tests >> X - Constant Control Relay Module (CCRM) >> X83 - Check For Fuel Pump Relay Always Closed
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X83 - Check For Fuel Pump Relay Always Closed



- Key "OFF".

- Disconnect Constant Control Relay Module (CCRM).

- Key "ON".

- Does fuel pump shut off when CCRM is disconnected?

Yes -- Replace CCRM. Rerun quick test. Quick Test Appendix (Detailed Testing Instructions)

No -- Service short to power in power-to-pump/FPM circuit. Reconnect CCRM. Rerun quick test. Quick Test Appendix (Detailed Testing Instructions)

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