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.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSFORD1994F 150 2WD PICKUP L6-300 4.9LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTESTING AND INSPECTIONPINPOINT TESTSX - CONSTANT CONTROL RELAY MODULE (CCRM)X46 - CHECK B+ TO PUSHER FAN CONTROL RELAY
1994 Ford F 150 2WD Pickup L6-300 4.9L
X46 - Check B+ to Pusher Fan Control Relay
1994 Ford F 150 2WD Pickup L6-300 4.9LSECTION X46 - Check B+ to Pusher Fan Control Relay
- Key "OFF".
- Disconnect Pusher Fan Control (PFC) relay.
PFC Relay Vehicle Harness Connector:
- Measure voltage between the B+ circuit at the PFC relay vehicle harness connector and the battery negative post.
- Is voltage greater than 10.5 volts?
Yes -- Go to X47. X47 - Check Pusher Fan Ground Circuit
No -- Service open in B+ circuit. Reconnect PFC relay. Re-evaluate symptom.
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.