OBD-II code · Powertrain (generic, extended)
P2AAE Diesel Fuel Presence Sensor Circuit Low
Voltage on the diesel fuel presence sensor signal line is below the expected window. Wire shorted to ground or sensor short.
Is it safe to drive with P2AAE?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySignal wire shorted to ground
- PossibleInternal sensor short
- Less likelyConnector pins corroded - high contact resistance
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–1.5 h
- Emissions test
- Likely to fail
- Parts involved
- Diesel Fuel Presence Sensor, Wiring Harness, Ecm
Related codes
- P2AABEngine Coolant Bypass Valve B Position Sensor Circuit Intermittent/Erratic
- P2AACDiesel Fuel Presence Sensor Circuit
- P2AADDiesel Fuel Presence Sensor Range/Performance
- P2AAFDiesel Fuel Presence Sensor Circuit High
- P2AB0Particulate Matter Sensor Processor Performance
- P2AB1Catalyst Heater Control Module Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.