OBD-II code · Powertrain (generic, extended)
P2AAC Diesel Fuel Presence Sensor Circuit
The ECM detects a generic fault on the diesel fuel presence sensor circuit. Reading cannot be used reliably for control.
Is it safe to drive with P2AAC?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySensor failed
- PossibleWiring or connector fault
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
- P2AA9Engine Coolant Bypass Valve B Position Sensor Circuit Low
- P2AAAEngine Coolant Bypass Valve B Position Sensor Circuit High
- P2AABEngine Coolant Bypass Valve B Position Sensor Circuit Intermittent/Erratic
- P2AADDiesel Fuel Presence Sensor Range/Performance
- P2AAEDiesel Fuel Presence Sensor Circuit Low
- P2AAFDiesel Fuel Presence Sensor Circuit High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.