Powertrain
generic / SAE
P24FB
Exhaust Aftertreatment Fuel Air Purge Valve Control Circuit High
The control circuit of the aftertreatment purge valve reads stuck high — typically a short to battery voltage or an open ground/return path. The driver cannot pull the line low to actuate the valve.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number4 / FB
Possible causes
- Control wire shorted to battery voltage high
- Open ground or open coil medium
- Connector pins corroded - high contact resistance low
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 150–700 €
- Estimated time: 0.5–2 h
- Component: aftertreatment purge valve
- Component: solenoid driver
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012