Powertrain
generic / SAE
P25C3
Alternative Fuel Disable Signal Circuit Low
The disable feedback signal sits below its valid window. Usually a short to ground or an open pull-up that lets the input float low.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number5 / C3
Possible causes
- Feedback wire shorted to ground high
- Open pull-up resistor in the controller input low
- Connector pins corroded - high contact resistance low
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 120–500 €
- Estimated time: 0.8–2 h
- Component: alt fuel control module
- Component: wiring harness
- MIL / check engine light
Sources
References
sae:J2012