GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2009 🢒 G5 🢒 Power and Signal Distribution 🢒 Wiring Systems and Power Management 🢒 Underhood Electrical Center or Junction Block Bracket Replacement

Removal Procedure
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.

    2. Object Number: 1548078 Size: SH
  2. Remove the cover (2) from the underhood electrical center.
  3. Remove the underhood positive battery terminal lug (4).

    4. Note: Take note of the positioning of the positive battery cables before disconnecting the cables.

  4. Disconnect the positive battery cables (5) from the underhood electrical center.
  5. Reposition the body harness from the electrical center top cover.

    6. Note: The underhood electrical center bolts (3) are retained in the electrical center.

  6. Loosen all of the underhood electrical center bolts (3).
  7. Remove the underhood electrical center (1) from the vehicle.

    8. Object Number: 2102443 Size: SH
  8. Remove the engine control module. Refer to Engine Control Module Replacement for the 2.0L engine or Engine Control Module Replacement for the 2.2L or 2.4L engine.
  9. Disconnect the electrical harness from the junction block bracket.
  10. Remove the bracket lower bolts (2).
  11. Remove the junction block bracket support nut (1).
  12. Remove the junction block bracket (3).

Installation Procedure

    Object Number: 2102443 Size: SH
  1. Install the junction block bracket (3).

    2. Caution: Refer to Fastener Caution in the Preface section.

  2. Install the junction block bracket support nut (1) and tighten to 10 N·m (89 lb in).
  3. Install the bracket lower bolts (2) and tighten to 10 N·m (89 lb in).
  4. Connect the electrical harness to the junction block bracket.
  5. Install the engine control module. Refer to Engine Control Module Replacement for the 2.0L engine or Engine Control Module Replacement for the 2.2L or 2.4L engine.

    6. Object Number: 1548078 Size: SH
  6. Position the underhood electrical center (1) to the vehicle.
  7. Tighten all of the underhood electrical center bolts (3) to 10 N·m (89 lb in).
  8. Connect the positive battery cables (5) to the underhood electrical center.
  9. Install the underhood positive battery terminal lug (4) and tighten to 15 N·m (133 lb in).
  10. Install the cover (2) to the underhood electrical center.
  11. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.