System Tests: Notes

2000 Mercury Mystique GS, 2.0 3, AutomaticSECTION Notes
NOTE: Central Locking Module is also referred to as Anti-Theft/Central Locking Module. Door lock motor may also be referred to as door lock actuator. A digital multimeter is needed to test power door lock system.
SYMPTOM CHART

Symptom Perform Test
One Power Door Lock Inoperative AΒ 
All Power Door Locks Inoperative BΒ 
All Power Door Locks Operate From One Switch Only CΒ 
Power Door Locks Operate Only With Engine Running DΒ 
Door Lock Motor Does Not Operate When Door Lock Is Operated Manually But Door Locks/Unlocks EΒ 
Door Lock Motor Does Not Operate When Door Lock Is Operated Manually & Door Does Not Lock/Unlock FΒ 
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.