Powertrain
generic / SAE
P2AA0
Alternative Fuel Return Line Valve Control Circuit Low
The control circuit of the alternative fuel return line valve reports a control circuit low condition. Excess fuel return to the tank cannot be commanded as expected.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / numberA / A0
Possible causes
- Control wire shorted to ground high
- Internal short in valve coil medium
- Connector pins corroded - high contact resistance low
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 180–800 €
- Estimated time: 1–4 h
- Component: alt fuel return line valve
- Component: wiring harness
- Component: afcm
- MIL / check engine light
- emissions-relevant
- limp mode possible
Sources
References
sae:J2012