Powertrain
generic / SAE
P04A1
Exhaust Pressure Control Valve B Low
Same as P049F with the control line shorted to ground.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number4 / A1
Possible causes
- Control line shorted to ground high
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 200–900 €
- Estimated time: 1–3.5 h
- Component: exhaust pressure valve b
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012