P1229 NISSAN 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
Tech notes
Start by inspecting the connections of the harness to the body grounds.
When is the code detected?
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)