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 MANUALSFORD2003WINDSTAR BASEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 2539 (ENGINE CONTROLS - PINPOINT TEST A: NO START THROUGH PINPOINT TEST DJ: AIR CONDITIONER EVAPORATOR TEMPERATURE (ACET) SENSOR - CNG, FLEX-FUEL & GASOLINE)PINPOINT TEST B: POWERTRAIN CONTROL MODULE (PCM) POWER RELAYINTRODUCTION
2003 Ford Windstar Base
Pinpoint Test B: Powertrain control module (PCM) Power Relay: Introduction
2003 Ford Windstar BaseSECTION Introduction
WARNING: This page does not describe the selected car, but rather 30 other vehicles, including the 2004 Mercury Sable, 2004 Mercury Mountaineer, 2004 Mercury Monterey, 2004 Mercury Marauder, and 2004 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
This pinpoint test is intended to diagnose the following:
- Harness Circuit(s):
- Vehicle Power.
- Ignition Start/Run.
- PCM Power Relay Ground.
- Battery positive voltage.
- PCM Power Relay (12A646).
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.