Powertrain
generic / SAE
P25F5
Turbocharger/Supercharger Boost Sensor C Circuit High
The third boost pressure sensor signal is above the upper diagnostic threshold. Common causes are an open sensor or a short to the 5 V reference.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number5 / F5
Possible causes
- Open sensor element high
- Signal wire shorted to the 5 V reference medium
- Connector pins corroded - high contact resistance low
Symptoms
- Check engine light on
- Significant power loss / limp mode
- Possible blue or black smoke from exhaust
- Whistling or hissing sound from intake
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 80–400 €
- Estimated time: 0.5–2 h
- Component: boost pressure sensor c
- Component: wiring harness
- MIL / check engine light
Sources
References
sae:J2012