P2061: Reductant Injection Air Pump Control Circuit High
What to do
As P2059's family throughout — and a pump heard running constantly is worth mentioning, since continuous running is what wears it out.
What this code means
The reductant air pump's control circuit reads high — shorted to a supply, or open in a circuit that rests high.
The mirror of P2060, with one variant worth a sentence: a control line stuck in the on state runs the pump continuously, which shortens a pump built for intermittent duty — the P0943 argument in miniature. Either way, the diagnosis is the wiring first.
Likely causes
Start here
- Wiring shorted to voltage · moderate
- Open circuit in control wiring · moderate
Less common
- Faulty reductant air pump · moderate
Symptoms
Components involved
Information, not instruction
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Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.
Community experience
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