GM Service Manual Online
For 1990-2009 cars only

Battery Positive Cable Replacement 4.8L, 5.3L, 6.0L, and 6.2L

Removal Procedure


    Object Number: 1702793  Size: SH
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Remove the under hood junction block cover.

  3. Object Number: 1702795  Size: SH
  4. Lift the junction block retainers from the locked position (3) and rotate the retainers to the open position (1).
  5. Remove the junction block.

  6. Object Number: 1702797  Size: SH
  7. Remove the positive battery cable connector (1) from the underhood bussed electrical center (UBEC).

  8. Object Number: 1702800  Size: SH
  9. Remove the mega fuse cover.

  10. Object Number: 1699546  Size: SH
  11. Remove the generator battery jumper cable to mega fuse nut (3).
  12. Remove the generator battery jumper cable terminal (4) from the mega fuse stud.

  13. Object Number: 1702801  Size: SH
  14. Remove the positive battery cable channel from the studs on the plenum front panel.
  15. Remove the positive battery cable clips from the studs on the plenum front panel.

  16. Object Number: 1702803  Size: SH
  17. Remove the positive battery cable terminal from the mega fuse stud.
  18. Remove the positive battery cable channel from the studs.
  19. Remove the positive battery cable from the vehicle.

Installation Procedure


    Object Number: 1702803  Size: SH
  1. Install the positive battery cable to the vehicle.
  2. Install the positive battery cable terminal to the mega fuse stud.

  3. Object Number: 1702801  Size: SH
  4. Install the positive battery cable channel at the plenum front panel.
  5. Install the positive battery cable clips to the studs on the plenum front panel.

  6. Object Number: 1699546  Size: SH
  7. Install the generator battery jumper cable terminal (4) to the mega fuse stud.
  8. Notice: Refer to Fastener Notice in the Preface section.

  9. Install the generator battery jumper cable to mega fuse nut (3).
  10. Tighten
    Tighten the nuts to 9 N·m (80 lb in).


    Object Number: 1702800  Size: SH
  11. Install the mega fuse cover.

  12. Object Number: 1702797  Size: SH
  13. Install the positive battery cable connector (1) to the UBEC.

  14. Object Number: 1702795  Size: SH
  15. Ensure the junction block retainers are in the open position (1).
  16. Position and align the junction block to the 4 bracket pivots (2), once the pivots are engaged, push the retainer down into the locked position (3).

  17. Object Number: 1702793  Size: SH
  18. Install the under hood junction block cover.
  19. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .

Battery Positive Cable Replacement 6.6L

Removal Procedure


    Object Number: 1702793  Size: SH
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement .
  3. Remove the underhood junction block cover.

  4. Object Number: 1702795  Size: SH
  5. Lift the junction block retainers from the locked position (3) and rotate the retainers to the open position (1).
  6. Reposition the junction block.

  7. Object Number: 1702797  Size: SH
  8. Remove the positive battery cable connector (1) from the underhood bussed electrical center (UBEC).

  9. Object Number: 1873915  Size: SH
  10. Disconnect the positive battery cable (1) from the glow plug control module.

  11. Object Number: 1873916  Size: SH
  12. Remove the mega fuse cover.

  13. Object Number: 1873917  Size: SH
  14. Remove the positive battery cable to mega fuse nuts (1).
  15. Remove the positive battery cable terminals from the mega fuse studs.

  16. Object Number: 1873918  Size: SH
  17. Remove the positive battery cable clip nuts (2) from the studs on the plenum front panel.
  18. Remove the positive battery cable clip (1) from the stud on the plenum front panel.

  19. Object Number: 1873919  Size: SH
  20. Remove the positive battery cable clips (1) from the studs on the plenum front panel.
  21. Remove the positive battery cable from the vehicle.

Installation Procedure


    Object Number: 1873919  Size: SH
  1. Install the positive battery cable to the vehicle.
  2. Install the positive battery cable clips (1) onto the studs on the plenum front panel.

  3. Object Number: 1873918  Size: SH
  4. Install the positive battery cable clip (1) onto the stud on the plenum front panel.
  5. Notice: Refer to Fastener Notice in the Preface section.

  6. Install the positive battery cable clip nuts (2) to the studs on the plenum front panel.
  7. Tighten
    Tighten the nuts to 3 N·m (27 lb in).


    Object Number: 1873917  Size: SH
  8. Install the positive battery cable terminals onto the mega fuse studs.
  9. Install the positive battery cable to mega fuse nuts (1).
  10. Tighten
    Tighten the nuts to 7.5 N·m (66 lb in).


    Object Number: 1873916  Size: SH
  11. Install the mega fuse cover.

  12. Object Number: 1873915  Size: SH
  13. Connect the positive battery cable (1) to the glow plug control module.

  14. Object Number: 1702797  Size: SH
  15. Install the positive battery cable connector (1) to the UBEC.

  16. Object Number: 1702795  Size: SH
  17. Ensure that the junction block retainers are in the open position (1).
  18. Position and align the junction block to the 4 bracket pivots (2), once the pivots are engaged, push the retainers down into the locked position (3).

  19. Object Number: 1702793  Size: SH
  20. Install the underhood junction block cover.
  21. Install the intake manifold cover. Refer to Intake Manifold Cover Replacement .
  22. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .

Battery Positive Cable Replacement 4.3L

Removal Procedure


    Object Number: 1702793  Size: SH
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Remove the under hood junction block cover.

  3. Object Number: 1702795  Size: SH
  4. Lift the junction block retainers from the locked position (3) and rotate the retainers to the open position (1).
  5. Remove the junction block.

  6. Object Number: 1702797  Size: SH
  7. Remove the positive battery cable connector (1) from the underhood bussed electrical center (UBEC).

  8. Object Number: 1702800  Size: SH
  9. Remove the mega fuse cover.

  10. Object Number: 1877262  Size: SH
  11. Remove the starter solenoid cable nut (2) from the mega fuse.
  12. Remove the starter solenoid cable (1) terminal from the mega fuse stud.

  13. Object Number: 1702801  Size: SH
  14. Remove the positive battery cable channel from the studs on the plenum front panel.
  15. Remove the positive battery cable clips from the studs on the plenum front panel.

  16. Object Number: 1702803  Size: SH
  17. Remove the positive battery cable terminal from the mega fuse stud.
  18. Remove the positive battery cable channel from the studs.
  19. Remove the positive battery cable from the vehicle.

Installation Procedure


    Object Number: 1702803  Size: SH
  1. Install the positive battery cable to the vehicle.
  2. Install the positive battery cable terminal to the mega fuse stud.

  3. Object Number: 1702801  Size: SH
  4. Install the positive battery cable channel at the plenum front panel.
  5. Install the positive battery cable clips to the studs on the plenum front panel.

  6. Object Number: 1877262  Size: SH
  7. Install the starter solenoid cable (1) terminal to the mega fuse stud.
  8. Notice: Refer to Fastener Notice in the Preface section.

  9. Install the starter solenoid cable nut (2) to the mega fuse.
  10. Tighten
    Tighten the nut to 9 N·m (80 lb in).


    Object Number: 1702800  Size: SH
  11. Install the mega fuse cover.

  12. Object Number: 1702797  Size: SH
  13. Install the positive battery cable connector (1) to the UBEC.

  14. Object Number: 1702795  Size: SH
  15. Ensure the junction block retainers are in the open position (1).
  16. Position and align the junction block to the 4 bracket pivots (2), once the pivots are engaged, push the retainer down into the locked position (3).

  17. Object Number: 1702793  Size: SH
  18. Install the under hood junction block cover.
  19. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .