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 MANUALSMERCURY2001VILLAGER BASEREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - SELF-DIAGNOSTICSSYSTEM TESTSTEST B: PCM RELAY
2001 Mercury Villager Base
Test B: Pcm Relay
2001 Mercury Villager BaseSECTION Test B: Pcm Relay
Enter this test only when directed here by other tests. To prevent replacement of good components, check for faults in following components:
- Ignition switch.
- Generator.
- Battery cables, ground straps and voltage regulator.
This test is only intended to diagnose the following components and circuits:
- Harness circuits; VPWR. PWR, GND and PCMR.
- PCM relay.
- Check VPWR To PCM
Turn ignition off. Disconnect PCM harness connector. Connect jumper wire between PCMR and GND circuits at PCM harness connector. See Fig 1. Turn ignition on. Measure voltage between ground and PCM terminals No. 66, 71 and 97. See Fig 2. If voltage is not greater than 10 volts, go to next step. If voltage is greater than 10 volts, go to step 7.
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.