1990 Plymouth Laser Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Control Relay (2.0L)

  1. Control relay is located on right side of center console. Disconnect control relay connector.
  2. Apply battery voltage to control relay terminal No. 10. While applying battery voltage to control relay terminal No. 10, ensure battery voltage is not present at terminals No. 4 and 5. See Fig 1 . While applying battery voltage to terminal No. 10 and grounding terminal No. 8, ensure battery voltage is present at terminals No. 4 and 5.
  3. While grounding terminal No. 6, ensure continuity is not present at terminals No. 2 and 3. While applying battery voltage to terminal No. 9 and grounding terminal No. 6, ensure continuity is present at terminals No. 2 and 3.
  4. To check for short to ground, apply battery voltage to terminal No. 3, and ensure there is no voltage at terminal No. 2. While applying battery voltage to terminal No. 3 and grounding terminal No. 7, battery voltage should be present at terminal No. 2. Replace control relay if it does not test as described.
Fig 1: Control Relay Terminal Identification (2.0L)
G90E06315Courtesy of CHRYSLER MOTORS.
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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.

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