GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2005 🢒 Sunfire 🢒 Body 🢒 Lighting Systems 🢒 Underhood Electrical Center or Junction Block Replacement

Removal Procedure
  1. Open the hood.
  2. Disconnect the negative battery cable from the battery. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  3. Remove the air cleaner mounting bracket. Refer to Air Cleaner Bracket Replacement in Body Front End.
  4. Remove the push-in retainer (3) from the electrical center.
  5. Remove the electrical center from the inner fender.

    6. Object Number: 740821 Size: SH
  6. Turn the electrical center over and remove the bottom cover.
  7. Remove the four plastic wire retainers.

    8. Notice: Note the correct routing of the electrical wiring. Failure to reinstall the wiring properly could result in damage to the wiring.

  8. Label and remove the wires.
  9. Turn the electrical center right side up and remove the fuses and relays.
  10. Remove the electrical center from the vehicle.

Installation Procedure

    Object Number: 740821 Size: SH
  1. Position the electrical center in the vehicle.
  2. Install the fuses and relays.
  3. Turn the electrical center over and install the wires.
  4. Install the four plastic wire retainers.
  5. Install the bottom cover to the electrical center.
  6. Install the electrical center to the inner fender.
  7. Install the push-in retainer (3) to the electrical center.
  8. Install the air cleaner mounting bracket. Refer to Air Cleaner Bracket Replacement in Body Front End.
  9. Connect the negative battery cable to the battery. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  10. Close the hood.