Sierra 1500 2WD V6-4.3L (2008)
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Various terminated leads for sensing and diagnostic module (SDM) terminal replacement
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Various connector positive assurance (CPA) locks for SIR/SRS connectors
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Base of steering column pigtail connectors part number 12085514
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Yellow vinyl electrical tape
Pigtail repair packs are available for SIR/SRS connectors with eight or less terminals. Only the connector body is available for connectors with more
than eight terminals. The terminated leads in the J-38125 SIR/SRS Terminal Repair Kit can be used to replace damaged terminals when replacing the
connector body.
SIR/SRS Component Wire Pigtail Repair
Important: Do not make wire, connector, or terminal repairs on components with wire pigtails.
A wire pigtail is a wire or wires attached directly to the device, not by a connector. If a wiring pigtail is damaged, you must replace the entire component,
with pigtail. The inflatable restraint steering wheel module coil is an example of a pigtail component.
SIR/SRS Wire Repair
Important: Refer to Wiring Repairs in order to determine the correct wire size for the circuit you are repairing. You must obtain this
information in order to ensure circuit integrity. See: Testing and Inspection/Component Tests and General Diagnostics
If any wire except the pigtail is damaged, repair the wire by splicing in a new section of wire of the same gage size (0.5 mm, 0.8 mm, 1.0 mm etc.). Use
the DuraSeal splice sleeves and splice crimping tool from the J-38125. Use the following wiring repair procedures in order to ensure the integrity of the
DuraSeal splice sleeves.
Important: You must perform the following procedures in the listed order. Repeat the procedure if any wire strands are damaged. You
must obtain a clean strip with all of the wire strands intact.
1. Open the harness by removing any tape:
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Use a sewing seam ripper, available from sewing supply stores, in order to cut open the harness in order to avoid wire insulation damage.
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Use the DuraSeal splice sleeves on all types of insulation except tefzel and coaxial.
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Do not use the crimp and DuraSeal splice sleeve to form a splice with more than 2 wires coming together.
2. Cut as little wire off the harness as possible. You may need the extra length of wire in order to change the location of a splice.
Adjust splice locations so that each splice is at least 40 mm (1.5 in) away from the other splices, harness branches, or connectors.
3. Strip the insulation:
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When adding a length of wire to the existing harness, use the same size wire as the original wire.
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Perform one of the following items in order to find the correct wire size:
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Find the wire on the schematic and convert the metric size to the equivalent AWG size.
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Use an AWG wire gage.
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If you are unsure of the wire size, begin with the largest opening in the wire stripper and work down until achieving a clean strip of the
insulation.
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Strip approximately 7.5 mm (0.313 in) of insulation from each wire to be spliced.
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Do not nick or cut any of the strands. Inspect the stripped wire for nicks or cut strands.
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If the wire is damaged, repeat this procedure after removing the damaged section.
