Vehicle Interface Unit /VCU Modules Replacement

REMOVAL PROCEDURE
1. Remove the left closeout/Insulation panel.
2. Disconnect the Vehicle Interface Unit (VIU) Vehicle Communication Unit (VCU) jumper harness connector.
3. Remove the I/P trim panel.

IMPORTANT: DO NOT remove the VIU/VCU bolts. The VIU/VCU bracket is equipped with slide channels to remove the bracket without removing the bolts.

4. Loosen the VIU/VCU bracket mounting bolts.
5. Disconnect the Global Positioning System (GPS) antenna coaxial cable from the VIU.
6. Disconnect the cellular antenna coaxial cable from the VCU.
7. Remove the VIU/VCU from the instrument panel.
8. Disconnect the electrical connectors from the VIU/VCU.
9. Unsnap the clamps retaining the VCU to the mounting bracket.
10. Remove the VCU from the mounting bracket.
11. Remove the insulators from the VIU.
12. Remove the four screws retaining the VIU to the mounting bracket.
13. Slide the VIU from the mounting bracket.

INSTALLATION PROCEDURE
1. Slide the VIU into the mounting bracket.

NOTE: 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. Tighten
Tighten the VIU mounting screws to 2 N.m 18 lb in.

Install the four screws retaining the VIU to the mounting bracket.

3. Install the insulators to the VIU.
4. Install the VCU to the mounting bracket.
5. Snap the clamps to retain the VCU to the mounting bracket.
6. Connect the electrical connectors to the VIU/VCU.
7. Install the VIU/VCU to the instrument panel.
8. Reconnect the cellular antenna coaxial cable to the VCU.
9. Reconnect the Global Positioning System (GPS) antenna coaxial cable to the VIU.

NOTE: 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.

10. Tighten
Tighten the VIU/VCU mounting bolts to ?N.m ?? lb in.
Tighten the VIU/VCU bracket mounting bolts.

11. Install the I/P trim panel.
12. Reconnect the vehicle interface unit (VIU) vehicle communication unit (VCU) jumper harness connector.
13. Install the left closeout/insulation panel.