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Home >> Mercury >> 1993 >> Capri Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Computerized Engine Controls >> Powertrain Control Module (Pcm) >> Ground Circuits
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Ground Circuits

Turn ignition off. Connect BOB, leaving PCM disconnected. Measure resistance between each specified BOB pin and ground. See PCM GROUND CIRCUIT RESISTANCE table. Repair indicated PCM ground circuit if resistance is greater than 5 ohms.

PCM GROUND CIRCUIT RESISTANCE

PCM Pin BOB Pin Wire Color
Capri
1V 44 Black
2R 49 Black
3A 20 Black
3G 40 Black
Festiva
2A 39, 40, 44, 60 Black
2B 20 Black
2C 16 Black
2D 46, 49 Black
2J 6 Black
- Manual transmission models only.