Test L: Tonneau Cover Inop Using Keyless Entry Keypad or Remote

L1 - L2:

L3 - L9:

Normal Operation
The central security module receives input from the keyless entry transmitter or the keyless entry keypad. The tonneau cover then receives a input from the central security module through circuit 1628 (WH/RD) to open the tonneau cover or circuit 1629 (PK/LG) to close the tonneau cover.

Possible Causes
^ circuit 1628 (WH/RD) open
^ circuit 1629 (PK/LG) open