P1229 Isuzu 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)
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