Door Lock Relay

1998 Mercury Tracer GS, AutomaticSECTION Door Lock Relay
  1. Remove and disconnect door lock relay. See DOOR LOCK RELAY under REMOVAL & INSTALLATIONΒ  . Using an ohmmeter, check resistance between door lock relay terminal No. 5 and terminals No. 2, 4, 7 and 9. See Fig 1 . All resistances should be 150-185 ohms.
  2. Check resistance between door lock relay terminal No. 6 and terminals No. 3, 8 and 12. See Fig 1 . All resistances should be less than 5 ohms. If all resistances are as specified, go to next step. If resistances are not as specified, replace door lock relay and retest system operation.
  3. Apply battery positive to relay terminal No. 5 and battery negative to relay terminal No. 1. Using a voltmeter, check voltage between ground and relay terminal No. 7. See Fig 1 . Apply battery positive to relay terminal No. 5 and battery negative to relay terminal No. 2. Check voltage between ground and relay terminal No. 6.
  4. Apply battery positive to relay terminal No. 5 and battery negative to relay terminal No. 3. Check voltage between ground and relay terminal No. 4. See Fig 1 . Apply battery positive to relay terminal No. 5 and battery negative to relay terminal No. 8. Check voltage between ground and relay terminal No. 9.
  5. Voltage in all tests should be more than 10 volts. If any voltage is not as specified, replace door lock relay and retest system operation. If all voltages are as specified, relay is functioning properly.
Fig 1: Identifying Door Lock Relay Terminals
G97H28065Courtesy of FORD MOTOR CO.
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.

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.