System Power Relay

1987 Jeep Comanche Laredo, 2.5 H, RWD, AutomaticSECTION System Power Relay

Located on the right strut tower, this relay is energized during engine start up and remains energized until 3 to 5 seconds after the engine is stopped. This permits the ECU to extend the idle speed actuator for the next start up and then cease operation. See Fig 1 .

Fig 1: Location of ECU-Controlled Relays
G12369
RENDER: 1.0x

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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.