Powertrain
generic / SAE
P2B98
Exhaust Pressure Control Valve A Supply Low
The supply voltage to the exhaust pressure control valve A actuator is below the expected window. Fuse blown, supply wire shorted, or upstream regulator fault.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / numberB / 98
Possible causes
- Supply fuse blown high
- Supply wire shorted to ground medium
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 100–500 €
- Estimated time: 0.5–3 h
- Component: exhaust pressure control valve a
- Component: wiring harness
- MIL / check engine light
- emissions-relevant
- limp mode possible
Sources
References
sae:J2012