P2A5F
Alternative Fuel Tank B Level Sensor Circuit
The AFCM detects a generic fault on the level sensor of alternative fuel tank B. Tank fill level cannot be displayed or used for range calculation.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: medium
Common causes
Ordered by how often each turns out to be the cause.
- Level sensor failedCommon
- Wiring or connector faultPossible
Parts involved
- Alt Fuel Tank B Level Sensor
- Wiring Harness
- Afcm
P2A5F is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.