Silverado 3500 2WD V8-6.6L DSL Turbo VIN 2 (2004)
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.
Connectors and Terminals
In order to prevent shorting between opposite terminals, use care when probing a connector and when replacing terminals. Damage to the components
could result.
Always use jumper wires between connectors for circuit checking.
Never probe through the Weather-Pack seals.
The J 35616-B Connector Test Adapter Kit , or the equivalent, contains an assortment of flexible connectors used in order to probe the terminals
during the diagnosis. The fuse remover and the BT-8616 Test Tool, or the equivalent, is used for removing a fuse and to adapt the fuse holder to a
meter for diagnosis.
Open circuits are often difficult to locate by sight because oxidation or terminal misalignment are hidden by the connectors. Merely wiggling a
connector on a sensor or in the wiring harness may temporarily correct the open circuit. Oxidized or loose connections may cause intermittent
problems.
Be certain the type of connector and terminal before making any connector or terminal repair. Weather-Pack and Com-Pack III terminals look similar,
but are serviced differently.
