Antenna: Service and Repair
ANTENNA BRACKET REPLACEMENTREMOVAL PROCEDURE
1. Remove the navigation antenna.
2. Lower the front portion of the headliner in order to expose the antenna bracket. Refer to Headliner Replacement (TrailBlazer, Envoy, Bravada)Headliner Replacement (TrailBlazer EXT, Envoy XL)
3. Remove the retaining screw from the antenna bracket.
4. Release the retaining clip from the roof panel.
5. Remove the antenna bracket from the roof panel.
INSTALLATION PROCEDURE
1. Position the antenna bracket to the roof panel.
2. Seat the antenna bracket retaining clip to the roof panel.
3. Install the retaining screw to the antenna bracket.
NOTE: Refer to Fastener Notice in Service Precautions.
Tighten
Tighten the screw to 2.5 N.m (22 lb in).
4. Install the headliner.
5. Install the navigation antenna.
BUS BAR/ANTENNA TERMINAL REPAIR
1. Buff the repair area with fine steel wool. This will remove the oxide coating formed during window manufacturing.
2. Apply paste-type rosin flux in small quantities to the rear defogger bus bar lead wire, antenna or defogger terminal repair area using a brush.
3. Coat the solder iron tip with solder. Use only enough heat to melt the solder and only enough solder to ensure a complete repair.
4. Apply solder to the bus bar.
Draw the soldering iron tip across the fluxed area thinly coating bus bar with solder.
5. Apply a small amount of flux to the underside of the rear defogger bus bar lead wire, antenna or defogger terminal.
6. Apply solder to the underside of the rear defogger bus bar lead wire, antenna or defogger terminal.
Draw the soldering iron tip across the fluxed area thinly coating the wire or terminal with solder.
- Apply heat to the top of the rear defogger bus bar lead wire antenna and/or defogger terminal, causing the solder spot to melt and fuse together.
- Use pliers to hold the rear defogger bus bar lead wire, antenna or defogger terminal.
- Holding force should not be removed until the solder has solidified.
IMPORTANT: Do not overheat the terminal when soldering it to the bus bar. Soldering iron tip temperature should be just enough to melt the solder allowing the solder to run freely. The iron should be in contact with the bus bar for as short a time as possible.
7. Solder the wire or terminal to the bus bar.
8. Wipe off any excess flux.
9. Connect the electrical connector.