Instrument Panel Electrical Center or Junction Block Replacement

Instrument Panel Electrical Center or Junction Block Replacement

Removal Procedure

Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

For Vehicles equipped with OnStar� (UE1) with Back Up Battery:

The Back Up Battery is a redundant power supply to allow limited OnStar� functionality in the event of a main vehicle battery power disruption to the VCIM (OnStar�module). Do not disconnect the main vehicle battery or remove the OnStar� fuse with the ignition key in any position other than OFF. Retained accessory power (RAP) should be allowed to time out or be disabled (simply opening the driver door should disable RAP) before disconnecting power. Disconnecting power to the OnStar� module in any way while the ignition is On or with RAP activated may cause activation of the OnStar� Back-Up Battery (BUB) system and will discharge and permanently damage the back-up battery. Once the Back-Up Battery is activated it will stay on until it has completely discharged. The BUB is not rechargeable and once activated the BUB must be replaced.






1. Disconnect the negative battery cable.
2. Disconnect the positive battery cable.
3. Remove the left and right lower trim panel extension by pulling outward at the dual-lock locations.
4. Rotate the panels outward to disengage hinges from the console.






5. Remove the connectors (1-3).






6. Remove the nut holding the instrument panel fuse block (IPFB) in place.
7. Remove the IPFB from the vehicle.

Installation Procedure






1. Align the IPFB in place.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

2. Install the nut to hold the IPFB in place.

Tighten
Tighten the I/P fuse block-to-H-brace nut to 2.2 Nm (20 lb in).






3. Install the connectors (1-3).






4. Install the left and right lower trim panel extensions.
4.1. Insert the extension panel hinges into the console.
4.2. Close the extension panel.
4.3. Push the extension panel at the dual-lock locations to secure in place.
5. Connect the positive battery cable.
6. Connect the negative battery cable.