Trunk Lid Pull-Down

GENERAL DESCRIPTION
The Trunk Lid Pulldown Unit is designed to assist and ensure full closure of the trunk lid.

When the trunk lid is opened, the Striker Motor runs, driving the striker up. the Striker Motor stops when the striker reaches the fully extended position.

When the trunk lid is lowered, the trunk lid latch engages the extended striker on the Trunk Lid Pulldown Unit. the engagement of the striker causes the Striker Motor in the pulldown unit to run, pulling the trunk lid down to the fully closed position. When the fully closed position is reached, the motor turns "OFF".

CIRCUIT OPERATION
The Trunk Lid Pulldown Unit is powered at all times through circuit 138 from fuse D7 and is grounded at all times through circuit 155 at G403. When the trunk lid is unlatched, the Trunk Lid Ajar Switch moves to the LID AJAR position, grounding the trunk open input to the IPC. With the Striker Switches in position 1, voltage is applied to the Striker Motor through striker switch B. the Striker Motor now runs since it is grounded through striker switch C and the Trunk Lid Ajar Switch. the Striker Motor drives the striker up until the striker contacts the Striker Switches, moving the Striker Switches to position 2. This opens the Striker Motor ground path through striker switch C. Voltage is now applied through striker switch B to the Striker Motor in the opposite direction. the Striker Motor does not run because there is no ground path through Striker Switch A and the Trunk Lid Latch Switch which is in the UNLATCHED position.

When the trunk lid is open the Trunk Lid Latch Switch is in the UNLATCHED position and grounds the Trunk Lamp, the trunk open wake-up input to the RSS Module and the IPC trunk open input. The IPC displays the message TRUNK OPEN" on the Driver Information Center. The RSS Module wakes up to allow Electronic Level Control (ELC) to operate.

When the trunk lid latch is lowered to engage the striker, the Trunk Lid Latch Switch LATCHED contacts close and the Striker Motor runs since battery voltage is applied to the Striker Motor through striker switch B and ground is supplied through striker switch A and the Trunk Lid Latch Switch the Striker Motor now drives the striker down, the trunk lid closes, and the Trunk Lid Ajar Switch moves to the LID CLOSED position, ungrounding the trunk open input to the IPC. the Striker Motor runs until the striker contacts the striker switch, moving the striker switches to position 1. Voltage is now applied through Striker Switch B to the Striker Motor in the opposite direction and the Striker Motor ground path through striker switch A is opened. the Striker Motor does not run because there is no ground path through Striker Switch C and the Trunk Lid Ajar Switch which is in the LID CLOSED position.