1992 Mercury Capri Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Power Circuits

Turn ignition off. Connect BOB, leaving ECA disconnected. Turn ignition on. Repair indicated ECA power circuit if battery voltage does not appear on specified BOB pin. See ECA POWER CIRCUIT RESISTANCEΒ  table.

ECA POWER CIRCUIT RESISTANCE

ECA Pin BOB Pin Wire Color
Capri
3I 37 Yellow/Green
3J 1 Black/Red
Festiva
1A 1 White/Red
1B 37, 57 Yellow/Black
Factory Service Tools

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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.

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