Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMERCURY1996SABLE GS, 4D WAGON, AX4NREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - SYSTEM & COMPONENT TESTS - EEC-VCOMPUTERIZED ENGINE CONTROLSPOWERTRAIN CONTROL MODULEGROUND CIRCUITS
1996 Mercury Sable GS, 4D Wagon, AX4N
Ground Circuits
1996 Mercury Sable GS, 4D Wagon, AX4NSECTION Ground Circuits
- Using a DVOM, check for continuity to ground at the following Powertrain Control Module (PCM) connector terminals. See IDENTIFYING POWERTRAIN CONTROL MODULE PWR GND TERMINALS
table. See Figure
. If continuity does not exist, repair open ground circuit as necessary. If continuity exists, go to next step.IDENTIFYING POWERTRAIN CONTROL MODULE PWR GND TERMINALS
Application PCM Harness Connector Terminal No. All Others 24, 51, 76, 77 & 103 Contour & Mystique, & Escort & Tracer (1.9L) 24, 51, 77 & 103 - Touch negative lead of DVOM to a good ground. With vehicle running, backprobe positive lead of DVOM to each ground terminal. DVOM should indicate less than one volt. If reading is greater than one volt, check for open, corrosion or loose connection on ground lead.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.