You mean the taillights on the CAR? That means the SKREEM is getting the message and the security module is flashing the lights. Then the FOB is fine.

You have problem with the pump/pump controller. Yank the trim out of the trunk area and see if you see:

• Rodent damage to the wiring
• Water damage to the wiring/pump/electrical connectors
• Anything PHYSICALLY wrong with the pump itself