OBD-II code · generic
P2AA1
Alternative Fuel Return Line Valve Control Circuit High
- System
- P2 — Powertrain / emissions (generic)
- Severity
- Moderate (3/5)
- Can I keep driving?
- Usually safe to drive
What does P2AA1 mean?
P2AA1 is defined as “Alternative Fuel Return Line Valve Control Circuit High”.
You can usually keep driving, but have it checked soon so a small fault doesn’t become a bigger one.
Related codes
- P2AA0Alternative Fuel Return Line Valve Control Circuit Low
- P2AA2Alternative Fuel Return Line Insufficient Flow
- P2A9FAlternative Fuel Return Line Valve Control Circuit Range/Performance
- P2A9EAlternative Fuel Return Line Valve Control Circuit/Open
- P2A9DAlternative Fuel High Pressure System Small Leak
- P2A9CAlternative Fuel Tank Select Valve C Control Circuit High
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This page is general information; an exact diagnosis needs measurements and a technician’s check.