P1229 Buick Sensor Power Supply Circuit Shorted
Possible causes
– Check harness body ground
– Faulty Accelerator Pedal Position (APP) sensor
– Faulty Power Steering Pressure (PSP) sensor
– Faulty Refrigerant Pressure sensor
– Faulty EVAP Control System Pressure sensor
– Faulty Accelerator Pedal Position (APP) sensor
– Faulty Power Steering Pressure (PSP) sensor
– Faulty Refrigerant Pressure sensor
– Faulty EVAP Control System Pressure sensor
Tech description
Start by inspecting the connections of the harness to the body grounds.
What about the obd code?
The Engine Control Module (ECM) detects a voltage of power source for sensor is excessively low or high.
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
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