P2061Reductant Injection Air Pump Control Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2061 is the high-side counterpart: the pump or valve output that feeds atomizing air carries voltage when the controller expects it to be off, or the diagnostic sees a level that only a connection to battery positive can explain. Deutz documents it on the EMR L1 controller as P2061-00, short circuit to battery on the high side (SPN 5796). The consequence can be the reverse of P2060: the valve may stay energised and keep blowing air through the dosing unit even when no DEF is wanted, which wastes compressed air, while the controller still blocks dosing because it has lost control of the output. Typical are a wire pinched against a powered cable in the same loom or a damaged connector. Open circuits belong to P2059.
- What you may notice
- Emission warning lamp on
- Air valve may run continuously, air system loses pressure
- DEF dosing blocked
- Likely causes
- LikelyControl wire shorted to a powered cable in the loom
- PossibleDamaged connector with bridged pins
- RareOutput stage in the controller failed
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €80 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.