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Home >> Buick >> 2004 >> Century Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 97 (Wiring Systems) >> Repair Instructions >> Underhood Electrical Center or Junction Block Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
  1. If the BEC housing was removed, perform the following:
    1. Position the BEC housing (1) to the strut tower and insert the lower tab into the slot on the tower.
    2. NOTE: Refer to Fastener Notice in Cautions and Notices.
    3. Install the BEC housing nuts (2) to the studs on the strut tower.

      Tighten:  Tighten the nuts to 3 N.m (27 lb in).

  2. Fig 1: BEC Housing & Nuts
    GM1233274Courtesy of GENERAL MOTORS CORP.
  3. Connect the wiring harness connectors to the junction block.
  4. Fig 2: Wiring Harness Connectors & Junction Block
    GM1233272Courtesy of GENERAL MOTORS CORP.
  5. Tighten the engine, IP and forward lamp wiring harness connector bolts to the junction block.

    Tighten:  Tighten the bolts to 10 N.m (89 lb in).

  6. Fig 3: Retaining Bolts Of Engine, I/P & Forward Lamp Wiring Harness Connectors
    GM1233270Courtesy of GENERAL MOTORS CORP.
  7. Position the BEC to the housing. Align the tabs and press the BEC into place to secure the junction block.
  8. Fig 4: Tabs & Bussed Electrical Center
    GM1233269Courtesy of GENERAL MOTORS CORP.
  9. Install the positive battery cable lead (1) to the stud on the BEC.

    Install the positive cable lead nut to the stud.

    Tighten:  Tighten the nut to 16 N.m (12 lb ft).

  10. Fig 5: Bussed Electrical Center & Positive Battery Cable Nut
    GM1233267Courtesy of GENERAL MOTORS CORP.
  11. Close the cover (2) on the BEC.
  12. Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.