Removal Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2003 GMC Savana Special, 2003 GMC Savana Camper Special, 2003 GMC Savana, 2003 Chevrolet RV Cutaway, and 2003 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: When performing service on or near the SIR components or the SIR wiring, the SIR system must be disabled. Refer to SIR Disabling and Enabling Zones. Failure to observe the correct procedure could cause deployment of the SIR components, personal injury, or unnecessary SIR system repairs.

Disconnect the battery negative cable. Refer to BATTERY NEGATIVE CABLE DISCONNECT/CONNECT PROCEDURE .
Remove the drivers seat. Refer to SEAT REPLACEMENT .
Remove the junction block cover (1).

Fig 1: Removing Junction Block Cover
Courtesy of GENERAL MOTORS CORP.
Remove the positive battery cable nut (2) from the junction block.
Remove the positive battery cable (3) from the junction block.
Disconnect the electrical connectors (1) from the junction block, if equipped with YF7.

Fig 2: Removing Positive Battery Cable Nut, Cable & Electrical Connectors
Courtesy of GENERAL MOTORS CORP.
Completely loosen the junction block caged bolts (2).
Release the tabs that retain the junction block (1) to the junction block base.
Remove the junction block (1) from the block base.

Fig 3: Loosening Caged Bolts & Removing Junction Block
Courtesy of GENERAL MOTORS CORP.
Remove the junction block base nuts (1, 3).
Remove the wiring harness (4) from the junction block base (2).
Remove the junction block base (4) from the floor.

Fig 4: Removing Junction Block Base Nuts, Wiring Harness & Junction Block Base
Courtesy of GENERAL MOTORS CORP.