Powertrain
generic / SAE
P25C2
Alternative Fuel Disable Signal Circuit High
The disable feedback signal sits above its valid window. Typical cause is a short to battery on the feedback wire or a failed pull-up in the input stage.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number5 / C2
Possible causes
- Feedback wire shorted to a B+ supply high
- Pull-up resistor in the input stage failed 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