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Home >> Lincoln >> 1995 >> Mark VIII V8-4.6L DOHC >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Pinpoint Tests >> XB - Variable Control Relay Module (VCRM) >> XB116 - Check Fuel Pump (FP) Circuit For Short to Ground
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XB116 - Check Fuel Pump (FP) Circuit For Short to Ground



- Key "OFF".

- Install breakout box, leave Powertrain Control Module (PCM) disconnected.

- Disconnect Variable Control Relay Module (VCRM). Inspect for damaged or pushed out pins, corrosion, loose wires, etc. Service as necessary.

- Measure resistance between test pin 22 and test pin 40 at the breakout box.

- Is resistance greater than 10,000 ohms?

Yes -- Replace VCRM. Remove breakout box. Reconnect all components. Rerun quick test. Quick Test Appendix (Detailed Testing Instructions)

No -- Service Fuel Pump (FP) circuit short to ground. Remove breakout box. Reconnect all components. Rerun quick test. Quick Test Appendix (Detailed Testing Instructions)
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