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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1572 (Wiring Systems And Power Management - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> Terminated Lead Repair

Terminated Lead Repair

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Special Tools

For equivalent regional tools, refer to Special Tools .

NOTE: All repairs near the engine manifold, turbo engine and all exhaust pipes should follow the High Temperature Wiring Repairs  procedures.

Terminated leads are terminals that are crimped onto wires. The terminated lead can be used throughout the vehicle since it is designed for temperatures up to 150°C. The length of the wire is 450 mm.

The DuraSeal splice sleeve has the following 2 critical features:

Part Number Color 0.18-0.35 >0.35-1 >1-2.5 >2.5-5
19169142 Green (2) X - - -
12089189 Red (2) - X - -
12089190 Blue (3) - - X -
12089191 Yellow (4) - - - X
  1. Use the connector end view to identify the correct terminated lead.
  2. The terminated lead package should include a DuraSeal splice sleeve. If not, use the chart to identify the correct part.
  3. Open the harness by removing any tape:

    Use a sewing seam ripper, or a comparable tool, to cut open the harness, to avoid wire insulation damage.

  4. Depending on how many terminals need repairs, cut the terminal and wire back at least 40 mm. Try to keep the harness wire length the same.

    If more than one terminated lead is required, stagger the lengths by 40 mm. This helps reduce the bundle size of the wire harness.

  5. Fig 1: Identifying Splice Crimp Tool Nests Terminal Identification
    GM68642Courtesy of GENERAL MOTORS CORP.
  6. Use the EL-38125-10:  tool in order to position the DuraSeal splice sleeve in the proper color nest of the splice sleeve crimp tool. The crimp tool has four nests, one for each color.
  7. Fig 2: Identifying Duraseal Splice Sleeve
    GM68639Courtesy of GENERAL MOTORS CORP.
  8. Place the DuraSeal splice sleeve in the nest. Ensure that the crimp falls midway between the end of the barrel and the stop. The sleeve has a stop (3) in the middle of the barrel (2) in order to prevent the wire (1) from going further. Close the hand crimper handles slightly in order to firmly hold the DuraSeal splice sleeve in the proper nest.
  9. Fig 3: Identifying Crimped Duraseal Splice Sleeve
    GM9502Courtesy of GENERAL MOTORS CORP.
  10. Insert the wire into the splice sleeve barrel until the wire hits the barrel stop.
  11. Tightly close the handles of the crimp tool until the crimper handles open when released.

    The crimper handles will not open until you apply the proper amount of pressure to the DuraSeal splice sleeve. Repeat steps 4 and 5 for the opposite end of the splice.

  12. Fig 4: Identifying Heated Splice Sleeve
    GM9503Courtesy of GENERAL MOTORS CORP.
  13. Using the J-38125-5:  ultra torch, apply heat to the crimped area of the barrel.
  14. Start in the middle and gradually move the heat barrel to the open ends of the tubing:
    • The tubing will shrink completely as the heat is moved along the insulation.
    • A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is achieved.