Powertrain
generic / SAE
P2A28
Alternative Fuel Tank Shutoff Valve C Control Circuit Low
The control circuit of alternative fuel tank shutoff valve C reports a control circuit low condition. Tank isolation cannot be commanded as expected on multi-tank CNG/LPG systems.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / numberA / 28
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: 150–800 €
- Estimated time: 1–4 h
- Component: alt fuel tank shutoff valve c
- Component: wiring harness
- Component: afcm
- MIL / check engine light
- emissions-relevant
- limp mode possible
Sources
References
sae:J2012