Silverado 3500 2WD V8-6.6L DSL Turbo VIN 2 (2004)
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On 2002 Sevilles and DeVilles, the GPS jumper cable MUST be unclipped from the back seat cross brace, or unplugged from the VCIM first.
DO NOT pull back on the mounting bracket until the GPS antenna jumper cable is unclipped from the back seat cross brace or unplugged from
the VCIM. The short length of jumper cable does not allow the VCIM mounting bracket to be pulled back very far, and could lead to a break
at the VCIM connector.
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On 2000-2002 Bonnevilles and LeSabres and 2001-2002 Auroras you will need to follow these steps:
1.
Remove the 4 nuts that secure the VCU/VIU bracket assembly to the rear seat back brace.
Note:
Save these nuts for later use.
2.
Remove and discard the plastic VCU/VIU bracket assembly from the vehicle.
3.
Remove the upper right stud (1) from the rear seat back brace and re-install in the middle lower slot (2) on the brace. Tighten the fastener to
4 Nm (36 lb in).
4.
Position the new VCIM in the vehicle over the studs on the rear seat back brace.
5.
Install two of the nuts saved from step (1). Tighten the nuts to 4 Nm (36 lb in).
6.
Connect the new OnStar jumper harness supplied in the kit to the VCIM (two white connectors) and the body wiring harness (C345
connector).
7.
Connect the small coaxial jumper cable supplied in the kit, to the VCIM, with the end that has a blue plastic housing connector. Plug the
other end of this coaxial jumper cable to the OnStar Global Positioning Satellite (GPS) antenna coaxial cable at the right angle connector.
Note:
The GPS cable in the new OnStar jumper harness is not utilized.
8.
Connect the cellular coaxial cable to the OnStar VCIM.
On 2001 Impala and Monte Carlos you will need to follow these steps:
9.
Remove the Vehicle Communications Unit (VCU) and Vehicle Interface Unit (VIU) following the procedures listed in SI. Save the bracket
nuts for later use.
