Truck Bed Cover: Description and Operation

Power Tonneau Cover Description and Operation

Operation

To open the power tonneau: Press and release the OPEN button on the lower left of the fob. The tonneau will open unsupervised to a position several inches from full open and stop. Press and hold the OPEN button for supervised operation until the tonneau is in the fully open position. Occasional intermittent operation of the tonneau cover may occur during the final open/close. Changing the location of the key fob in relation to the tonneau should result in continued operation.

To close the power tonneau: Press and release the CLOSE button on the lower right of the fob. The tonneau will close unsupervised to a position several inches from full close and stop. Press and hold the CLOSE button for supervised operation until the tonneau is in the fully closed position.

Circuit Description

Battery voltage is supplied to the system from the 47 fuse in the underhood fuse block. The system is grounded at the G300 chassis harness ground. The key fobs and exit/learn switch are inputs to the receiver module. The receiver module commands the master motor through the Wake Up, Open, and Close signal circuits and controls the cargo lamp through a low side drive control circuit. The power tonneau is operated by 2 motors that drive left and right side drive cables. The master motor commands the slave motor through an X Bus communication circuit and the slave motor communicates its status back to the master motor. During power tonneau operation if either motor fails or encounters excessive resistance both motors will be stopped.

Key Fob Programming

Up to 4 key fobs may be programmed to the receiver module and all fobs must be programmed during the same programming session.

1. Press and release the exit/learn switch 5 times within 5 seconds.
2. The cargo bed lamp will flash 2 times to confirm the receiver module has entered the learn mode.
3. Press any button on the fob to be learned. The cargo bed lamp will flash 3 times to confirm the fob has been learned.
4. Repeat the previous step within 16 seconds with the next fob to be learned.
5. The receiver module will exit the learn mode after 16 seconds have elapsed with no fobs being learned.