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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 444 (Wiring Systems (General Information)) >> Repair Instructions >> UNDERHOOD Electrical Center Or Junction Block Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2002 Buick Regal and 2002 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the negative battery cable. Refer to BATTERY NEGATIVE CABLE DISCONNECT/CONNECT PROCEDURE .
  2. Release and reposition the remote positive battery cable stud cover.
    3. Fig 1: Identifying Remote Positive Battery Cable Stud Cover
    G01754670Courtesy of GENERAL MOTORS CORP.
  3. Remove the nut retaining the positive battery cable lead to the underhood accessory wiring junction block, then reposition the cable lead away from the junction block.
  4. Release the coolant recovery tank hose retainer from the junction block.
  5. Release the four tabs retaining the junction block to the junction block retainer and reposition the junction block.
    Fig 2: Identifying Junction Block-To-Junction Block Retainer Tabs
    G01754671Courtesy of GENERAL MOTORS CORP.
  6. Disconnect the instrument panel (IP) wiring harness individual connectors from the junction block.
    Fig 3: Identifying Instrument Panel (IP) Wiring Harness Individual Connectors
    G01754672Courtesy of GENERAL MOTORS CORP.
  7. Loosen the bolts retaining the engine, IP and forward lamp wiring harness connectors to the junction block.
  8. Disconnect the engine wiring harness connector from the junction block.
    Fig 4: Identifying Engine Wiring Harness Connector
    G01754673Courtesy of GENERAL MOTORS CORP.
  9. Disconnect the IP wiring harness connector from the junction block.
    Fig 5: Identifying IP Wiring Harness Connector
    G01754674Courtesy of GENERAL MOTORS CORP.
  10. Disconnect the forward lamp wiring harness connector from the junction block.
    Fig 6: Identifying Forward Lamp Wiring Harness Connector
    G01754675Courtesy of GENERAL MOTORS CORP.
  11. If accessory wiring junction block retainer removal is necessary, perform the following:
    1. 11.1. Release the positive battery cable lead retainers from the junction block retainer, then reposition the cable lead away from the retainer.
    2. 11.2. Remove the nut retaining the junction block retainer to the strut tower.
    3. 11.3. Lift the junction block retainer to release the lower tab and remove the retainer from the vehicle.
    Fig 7: Identifying Junction Block Retainer
    G01754676Courtesy of GENERAL MOTORS CORP.
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