SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSMERCURY2001VILLAGER BASEREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - SELF-DIAGNOSTICSQUICK TESTSWITCH MONITOR TEST MODEDESCRIPTION & OPERATION
2001 Mercury Villager Base

Description & Operation

2001 Mercury Villager BaseSECTION Description & Operation

The switch monitor test uses PIDs to check operation of certain switches (and related circuits) that do not set codes.

  1. Turn ignition on. Connect New Generation Star (NGS) tester. Refer to EQUIPMENT HOOKUP . Using NGS tester, select PCM and enter PID/DATA MONITOR AND RECORD function.
  2. Select PIDs for switches in question. Operate switch while observing appropriate PID. If switch PID does not turn on and off when switch is operated, proceed with appropriate test. See SWITCH MONITOR TEST MODE  table.
    SWITCH MONITOR TEST MODE

    Switch Condition (NGS Reading) Test
    Vehicle Start (VST) Signal Ignition On (OFF); Ignition Start (ON) A 
    Power Steering Pressure Switch (PSP SW) Engine Running, Steering In Neutral Position (OFF); Steering Turned (ON) FF 
    A/C Switch (AC SW) Key On, A/C Off (OFF); A/C On (ON) KM 
    Park/Neutral Position Signal (PNP) Key On, Gearshift Lever In "N" Or "P" Range (ON); Gearshift Lever Not In "N" & "P" Ranges (OFF) .....
    A/C Relay (ACR) Engine Running, A/C Off (OFF); A/C On (ON) KM 
    Cooling Fan Relay (Low) (LFAN) Engine Running, A/C Off (OFF); A/C On (ON) KF 
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

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.