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 DIAGNOSISBODY & FRAMEBODY, CAB CONTROL SYSTEMSMODULE COMMUNICATIONS NETWORK SYSTEMDESCRIPTION & OPERATIONREPAIRING TWISTED PAIR WIRING
1996 Mercury Sable GS, 4D Wagon, AX4N
Repairing Twisted Pair Wiring
1996 Mercury Sable GS, 4D Wagon, AX4NSECTION Repairing Twisted Pair Wiring
NOTE:
Data communication lines are very sensitive to moisture and oxidation. The following procedure must be used to ensure optimum performance of module communications network. Durability of splice is dependent on sealing the repair. Regular heat shrink tubing is NOT sufficient, heat shrink tubing containing hot melt wax is required.
- When performing a repair, ensure communication network wires are twisted at a rate of 33-40 winds per meter. The twists should start within approximately 4" (10 cm) from any connector. Use only 20 AWG standard wire gauge for repairs.
- Strip 3/4" (19 mm) of insulation from one wire. Strip 1-1/2" insulation from other wire. See Fig 1 . Place a 2" (51 mm) section of hot melt wax type heat shrink tubing over one wire.
- Twist 1/2" of the stripped portion of the wires together. Solder connection using resin core RMA solder. DO NOT use acid core solder.
- Bend wire to accommodate heat shrink tubing installation. See Fig 1 . Position heat shrink tubing over repair area. Using a heat gun, evenly heat the shrink tubing until wax oozes from ends of shrink tubing. Remove heat.
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:
- • 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.