Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD1994F 250 2WD PICKUP V8-302 5.0LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTESTING AND INSPECTIONPINPOINT TESTSX - CONSTANT CONTROL RELAY MODULE (CCRM)X106 - CHECK FPM CIRCUIT
1994 Ford F 250 2WD Pickup V8-302 5.0L
X106 - Check FPM Circuit
1994 Ford F 250 2WD Pickup V8-302 5.0LSECTION X106 - Check FPM Circuit
- Key "OFF".
- Disconnect Powertrain Control Module (PCM). Inspect for damaged or pushed out pins, corrosion, loose wires, etc. Service as necessary.
- Install breakout box, leave PCM disconnected.
- Key "ON", engine "OFF".
- Connect a test lamp between test pin 8 and test pin 37 at the breakout box.
- Observe test lamp for an indication of a fault while performing the following (the light will go out when a fault is found, indicating an open):
- Shake, wiggle, bend the Fuel Pump Monitor circuit between the splice into the power-to-pump circuit and the PCM.
- Is fault indicated?
Yes -- Isolate fault and service as necessary. Remove breakout box. Reconnect PCM. Rerun quick test. Quick Test Appendix (Detailed Testing Instructions)
No -- Go to X1O7. X107 - Check For Shorts to Power
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.