Powertrain
generic / SAE
P2A44
Alternative Fuel Tank B Pressure Sensor Circuit High
Voltage on the pressure sensor signal line of alternative fuel tank B is above the expected window. Wire shorted to B+ or sensor open.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / numberA / 44
Possible causes
- Signal wire shorted to B+ high
- Open pressure sensor medium
- Connector pins corroded - high contact resistance low
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 150–800 €
- Estimated time: 1–4 h
- Component: alt fuel tank b pressure sensor
- Component: wiring harness
- Component: afcm
- MIL / check engine light
- emissions-relevant
- limp mode possible
Sources
References
sae:J2012