P1501 BUICK – Theft Deterrent System Fault Conditions

P1501 BUICK Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P1501 BUICK Possible Causes

Faulty Theft Deterrent System,Theft Deterrent System program

P1501 BUICK Description

With the engine cranking, the Powertrain Control Module (PCM) determines that the Theft Deterrent password had not been programmed into the PCM. Note: The ignition key contains a transponder that transmits a signal to the theft deterrent module when the ignition switch is turned to the ON position. The TDM (module) compares the signal from the key and determines if an authorized key is being used.