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HOMESERVICE MANUALSFORD1994F 250 2WD PICKUP L6-300 4.9LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTESTING AND INSPECTIONPINPOINT TESTSX - CONSTANT CONTROL RELAY MODULE (CCRM)X11 - CHECK PUSHER FAN CONTROL RELAY
1994 Ford F 250 2WD Pickup L6-300 4.9L

X11 - Check Pusher Fan Control Relay

1994 Ford F 250 2WD Pickup L6-300 4.9LSECTION X11 - Check Pusher Fan Control Relay


- Key "OFF".

- Pusher Fan Control (PFC) relay disconnected.

- Digital Volt/Ohm Meter (DVOM) on 200 ohm scale.

Pusher Fan Control (PFC) Relay:






- Check PFC relay coil by measuring resistance between Pins 85 and 86 of the PFC relay (pin numbers moulded on relay). Resistance should be between 40 and 85 ohms.

- DVOM on 10,000 ohms scale.

- Check PFC relay for internal shorts by measuring resistance between Pin 85 and Pins 30 and 87 of the PFC relay. Both resistances should be greater than 10,000 ohms.

- Are all resistance checks OK?

Yes -- Go to X12. X12 - Check PFC Circuit For Short To Power

No -- Replace PFC relay. Rerun quick test. Quick Test Appendix (Detailed Testing Instructions)
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.