Information Bus: Service and Repair

SPECIAL TOOL(S)







1. Disconnect the battery ground cable.

NOTE: The durability of a wire splice is dependent on getting a joint that does not oxidize. Soldering is effective in keeping the air (oxide) out of the joined electronic circuits. Very high current circuits can fail because of oxidized joints that are not visible with the naked eye. The durability of a splice is also dependent on keeping moisture out of the joint. Heat shrink tubing alone will not seal it. The tubing must contain a hot melt wax, which is squeezed from both ends of the tubing during heating and forms an adhesive seal between the wire insulation and the tubing. Use Raychem SCT(R) heat shrink tubing, Motorcraft part number WT 5627 or equivalent meeting Ford specification ESB-M99D56-A2.







2. Strip the wires.







3. Solder the wires.
1 Install the heat shrink tube.
2 Twist the wires together.
3 Solder the wires together.

NOTE: Use Rosin Core Mildly Activated (RMA) solder, not acid core solder.







4. Bend the wires back in a straight line.

NOTE: Wait for the solder to cool before moving the wires.







5. Position the (A) heat shrink tube over the (B) wire repair.
- Overlap the heat shrink tube on both wires.







6. Use Heat Gun to heat the repaired area until adhesive flows out both ends of the heat shrink tube.







7. Connect the battery ground cable.

NOTE: When the battery is disconnected and reconnected, some abnormal drive symptoms may occur while the vehicle relearns its adaptive strategy. The vehicle may need to be driven 16 km (10 mi) or more to relearn the strategy.