Cadillac 88891017 Antenna Asm,Radio Power

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Remove the steel mast from the antenna base, loosen the antenna escutcheon nut on top of the fender using a special tool J-28641 or an equivalent, remove the two side mounting bolts through the engine compartment, disconnect the antenna lead in the cable, raise and support the car to remove the inner fender clips and screws, pull back the inner fender strip and remove the escutcheon nut, remove the antenna base assembly, inspect the grommet in the fender wheel for cracks or distortion of any kind, replace the grommet if needed, slide the new antenna into place with the antenna lead attached, install the escutcheon nut, attach the inner fender clips and screws, then lower the vehicle, tighten the two mounting bolts in the engine compartment, then tighten the antenna escutcheon nut, install the antenna mast to the base, reinstall the right shroud panel and sound insulator, disconnect the lead-in from the radio, connect a 3 ft. (0.9m) length of wire to the lead-in connector to aid in pulling the new lead-in into place, remove the lower windshield reveal molding and the air inlet grille, unplug the pigtail connector from the antenna lead-in connector at the cowl, remove the two attaching screws and the antenna lead-in to the cowl, pull the lead-in out until the wire attached in the previous step is accessible, disconnect the wire from the lead-in, wrap the pull-in wire around the new antenna lead-in and start feeding the lead-in through the cowl, apply RTV sealer to the cowl where the lead-in attaches to the cowl, pull the lead-in into place, then install the attaching screws, engage the pigtail connector to the antenna lead-in, install the air inlet grille and the reveal molding, remove the pull-in wire from the antenna lead-in connector, then plug the lead-in into the radio.

To install the new antenna, insert the cable lead into the fender wheel and route it towards the radio, attaching it to the back of the radio. Screw the antenna mast into the fender and check its operation.

Disconnect the negative battery cable.

For power antenna installation inside the fender, disconnect the negative battery cable and remove the instrument panel sound absorber pad. Disconnect the antenna lead-in and harness connector from the relay assembly. Apply masking tape to the rear edge of the fender and door. If necessary, remove the inner to outer fender retaining screws and the front wheel assembly. Remove the lower rocker panel and inner splash shield from the fender, as required. Remove the upper antenna retaining nut and the antenna to bracket retaining bolts, then remove the antenna. To install the power antenna, fit it into position and loosely install the antenna gasket and upper nut. Loosely install the antenna to bracket retaining bolts and tighten the upper antenna retaining nut and the antenna to bracket retaining bolts. Complete the installation in reverse order and apply silicone grease to the harness connector before reconnecting the negative battery cable.

Raise the vehicle and support it safely, then remove the associated front wheel assembly.

Raise and support the car to remove the inner fender clips and screws, pull back the inner fender strip and remove the escutcheon nut, and inspect the grommet in the fender wheel for cracks or distortion of any kind.

Disconnect the negative battery cable, remove the instrument panel sound absorber pad, unplug the antenna lead-in and harness connector from the relay assembly, apply masking tape to the rear edge of the fender and door, remove the inner to outer fender retaining screws, raise the vehicle and support it safely, then remove the associated front wheel assembly, remove the lower rocker panel retaining screws, lower fender-to-body retaining bolt and remove the lower rocker panel, as required, remove the inner splash shield from the fender, as required, remove the upper antenna retaining nut, using an appropriately tool, remove the antenna-to-bracket retaining bolts, then remove the antenna. To install, fit the antenna into position, then loosely install the antenna gasket and upper nut, loosely install the antenna to bracket retaining bolts, tighten the upper antenna retaining nut, using the appropriately tool, then tighten the antenna to bracket retaining bolts, complete installation in the reverse order of the removal procedure, apply silicone grease to the harness connector before reconnecting, check the operation of the antenna mast, reset the radio and clock, if required, from inside the trunk, remove the trim panel from either the right or left rear wheel area, remove the antenna mounting bracket retaining screws, remove the upper antenna nut and bezel from the antenna, using an appropriately tool, remove the lead-in cable and wiring connector, remove the antenna assembly from the vehicle, fit the antenna to the vehicle, then connect the lead-in cable, install the nut and bezel to the antenna and mounting bracket retaining screws, apply silicone grease to the harness connector before reconnecting, install the trim panel and reconnect the negative battery cable, check the operation of the antenna mast, reset the radio and clock, if required.

Remove the fender skirt attaching screws and pull down on the rear edge of the skirt, using a 2x4-inch lumber as a spacer to keep it pulled away.

To replace a power antenna, start by lowering the antenna mast fully by turning off the radio or ignition key switch. If the unit has failed with the antenna mast in the 'Up' position, it may be advisable to cut off the mast portion to make replacement easier. Next, disconnect the negative battery cable. Access to the power antenna motor is through the inner fender panel, so raise the vehicle and remove the front tire if necessary for better access. Remove the fender skirt attaching screws and pull the splash shield forward to gain access to the antenna connections, using a piece of 2 x 4 lumber as a spacer to keep the shield pulled away. Remove the escutcheon nut and spacer at the fender, then disconnect the electrical leads and remove the antenna and motor assembly through the fender skirt opening. When installing a new unit, make sure the mast is fully retracted and the lower bracket is securely attached to the body.