Contents Section: Door Locks & Anti-Theft Systems All sections

Tailgate & Trunk Release Cadillac Brougham I

DESCRIPTION & OPERATION

The electric trunk release system consist of a release button in the glove box, an ignition switch controlled power connection, and a release solenoid in the trunk. Pressing release button energizes the release solenoid, unlatching the trunk lid. Station wagon models have an electric tailgate release. Procedures are the same for tailgates and trunks.

Some models have an additional power trunk pull-down unit that closes trunk lid when it is lowered. A permanent magnet reversible motor pulls the striker down, locking trunk lid in a fully closed position. When release solenoid is activated, the motor reverses and allows trunk lid to rise.

LOCK ASSEMBLY

Ensure trunk lid is properly aligned. Loosen lock assembly bolts on trunk lid, move lock to desired position and tighten bolts.

TRUNK WILL NOT OPEN WITH PANEL SWITCH BUT OPENS WITH KEY SWITCH

Note. Not all models are equipped with power trunk pull-down.

Open or short between switch and fuse block. Open or short in wire between switch and solenoid. Defective switch or lock solenoid.

TRUNK CLOSING UNIT INOPERATIVE

Open circuit in closing unit to fuse block feed wire. Defective switch or motor. Open circuit in switch wiring.

CLOSING UNIT DOES NOT CYCLE TRUNK UP

Switch tap plunger binding or out of position.

CLOSING UNIT DOES NOT CYCLE TRUNK DOWN

Switch contact not touching shaft of striker assembly. Foreign matter on lock striker, lock hook surface or between contact blade and striker shaft.

TRUNK UNIT CYCLES UP & DOWN CONTINUOUSLY

Defective switch assembly. Internal contacts binding. Switch tap button binding.

CLOSING UNIT DOES NOT FULLY CLOSE TRUNK

Defective switch. Intermittent ground through striker and lock hook. Incorrectly positioned striker or lock hook.

TRUNK CLOSING UNIT RAISES STRIKER TOO HIGH

Arm of cycle cutout switch incorrectly positioned; broken or missing tab on striker shaft.

TRUNK RELEASE SOLENOID

If solenoid will not release, check power at solenoid with button depressed. If power is not present, check for power at switch in glove compartment. If power is present at solenoid, ensure ground connection is good. If still inoperative, replace solenoid.

Removal & Installation

Open trunk lid. Remove trunk lock attaching bolts. Disconnect electrical connector and remove bolts attaching solenoid to lock. Remove solenoid and lock. To install, reverse removal procedure. Check operation.

Open trunk lid and remove pull-down unit trim cover. Disconnect wiring and remove pull-down unit. To install, reverse removal procedure. Check operation.

WIRING DIAGRAMS

For wiring diagrams, refer to appropriate chassis wiring diagram in WIRING DIAGRAMS section.