K 2500 Truck 4WD V8-5.3L VIN T (1999)
Engine Control Module: Service Precautions
Wiring Harness Service
Replace the wire harnesses with the proper part number replacement. When splicing signal wires into a harness, use the wiring that has high temperature
insulation.
Consider the low amperage and voltage levels utilized in the Powertrain control systems. Make the best possible bond at all splices. Use rosin-core
solder in these areas.
Molded-on connectors require complete replacement of the connector. Splice a new connector into the harness. Replacement connectors and terminals
are listed in Group 8.965 in the Standard Parts Catalog. For wiring repair, refer to Wiring Repairs in Wiring Systems.
