GM Service Manual Online
For 1990-2009 cars only

Kostal Connectors Glow Plug Control Module

Special Tools

For equivalent regional tools, refer to Special Tools.

Removal Procedure


Object Number: 1709300  Size: SH

View of typical connector.


Object Number: 1709301  Size: SH

View of connector in released position.

  1. Locate the assist lever at the back of the connector. Move the assist lever to the rear position.
  2. Disconnect the connector from the component.

  3. Object Number: 1709302  Size: SH
  4. Use a small flat-blade tool to remove the dress cover.

  5. Object Number: 1709303  Size: SH
  6. Slide the dress cover forward and off of the connector.

  7. Object Number: 1709304  Size: SH
  8. The terminal positive assurance (TPA) is located in the front and rear of the connector.
  9. Note: The front TPA cannot be removed from the connector. Only move it to the preset position.

  10. Use a small flat-blade tool to move the front TPA to the preset position, outboard approximately 0.125 in. (3 mm).

  11. Object Number: 1709305  Size: SH
  12. Use a small flat-blade tool to completely remove the rear TPA from the connector.

  13. Object Number: 1709306  Size: SH
  14. Use the EL-38125-24 or the EL-38125-560 tool to release the terminals by inserting the tool into the terminal release cavity.
  15. While holding the removal tool in place, gently pull the wire out of the back of the connector. Always remember never use force when pulling a terminal out of a connector.

Terminated Lead Repair

  1. Remove the terminal.
  2. Find the appropriate terminated lead.
  3. Use the appropriate splice sleeves depending on the gage size.
  4. Refer to Splicing Copper Wire Using Splice Sleeves.

Kostal Connectors Transmission

Special Tools

For equivalent regional tools, refer to Special Tools.

Removal Procedure


    Object Number: 1921876  Size: SH
  1. While depressing the lock, twist and remove the connector from the component.

  2. Object Number: 1921872  Size: SH
  3. Locate the terminal position assurance (TPA).

  4. Object Number: 1921873  Size: SH

    Note: The TPA cannot be removed from the connector while there are terminals present in the connector body.

  5. Use a small flat-blade tool to push the TPA until it bottoms out.

  6. Object Number: 1921843  Size: SH
  7. Use the EL-38125-28 tool to release the terminals by inserting the tool into the terminal cavity as shown in the graphic.
  8. While holding the removal tool in place, gently pull the wire out of the back of the connector. Always remember never use force when pulling a terminal out of a connector.

Terminated Lead Repair

  1. Remove the terminal.
  2. Find the appropriate terminated lead.
  3. Use the appropriate splice sleeves depending on the gage size.
  4. Refer to Splicing Copper Wire Using Splice Sleeves.

Terminal Replacement Procedure

After the terminal is crimped to the wire, perform the following procedure in order to replace the terminal.

  1. Slide the new terminal into the correct cavity at the back of the connector.
  2. Push the terminal into the connector until it locks into place. The new terminal should be even with the other terminals. Ensure that the terminal is locked in place by gently pulling on the wire.

  3. Object Number: 1921848  Size: SH
  4. Locate the terminal position assurance (TPA).

  5. Object Number: 1921849  Size: SH
  6. Use a small flat-blade tool to push the TPA until it bottoms out.

  7. Object Number: 1921872  Size: SH
  8. Ensure the TPA is fully seated. The TPA should be centered and flush with the connector body when viewed.