Powertrain
generic / SAE
P0419
Secondary Air Injection System Control B Circuit
A general electrical fault on AIR system control circuit B (typically the AIR pump driver line on the second pump or relay).
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number4 / 19
Possible causes
- Pump driver or relay fault high
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 80–600 €
- Estimated time: 0.5–2.5 h
- Component: secondary air injection pump
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012