What are the possible causes of code P129C?
- Faulty ambient pressure sensor
- Ambient pressure sensor harness is open or shorted
- Poor electrical connection in the ambient pressure sensor circuit
How to repair code P129C?
Start by checking the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
What are the possible symptoms of code P129C?
- Check Engine Light on (or Service Engine Soon warning light)
What does code P129C mean?
The Engine Control Module (ECM) monitors the ambient pressure sensor. The ECM sets the OBDII code when the ambient pressure sensor does not meet factory specifications.
Ambient Pressure Sensor Operation at Implausible Pressure
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Code P129C information for specific brands
- P129C BMW Ambient Pressure Sensor Implausible Run On Pressure
- P129C Fuel Pump Driver Control Module System Voltage High
- P129C Fuel Pump Driver Control Module System Voltage High
- P129C Chevrolet Fuel Pump Control Module System Voltage High
- Fuel Pump Driver Control Module System Voltage High
- P129C MINI Ambient Pressure Sensor Implausible Run On Pressure