P2507 Buick PCM Input Signal Low
Possible causes
– Low battery voltage
– Faulty Powertrain Control Module (PCM)
– PCM harness is open or shorted
– PCM circuit poor electrical connection
– Faulty Powertrain Control Module (PCM)
– PCM harness is open or shorted
– PCM circuit poor electrical connection
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P2507 Buick Description
When the ignition switch is turned “ON”, battery voltage is applied from the battery to the Powertrain Control Module (PCM) through the main relay. In case that the ignition switch is turned “OFF”, the PCM is supplied with power through the battery power input line to control the basic operation of vehicle.
Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse – ?David Dunbar Buick – Buick Century – Buick LaCrosse – Buick LeSabre – Buick Lucerne – Buick Park Avenue – Buick Regal – Buick Verano – Buick Enclave – Buick Encore – Buick Rainier – Buick Rendezvous – Buick Terraza – Buick Riviera