I have this truck in the shop knowing it is under warranty but trying to help the account customer due to a 3 week delay for warranty work. Only the brake warning light and buzzer is on. No abs. The electric motor works with key off when applying the brake. The electric motor runs continuously when the key is on engine off. The hydraulic booster seems to be working when the truck is running and the electric motor does not assist while running. And ideas? Really appreciate any input

Daniel Mayer
Technician
Marque's Leasing and Repair
Marrero, Louisiana, USA