P2040 — Reductant Injection Air Pressure Sensor Circuit High

Q: What does fault code P2040 mean?

P2040 means: Reductant Injection Air Pressure Sensor Circuit High. It is a Powertrain (engine/transmission) fault code defined by the OBD-II standard.

Q: Can I keep driving with P2040?

With P2040 you can usually drive home and book an inspection within a few days unless the car feels abnormal.

Powertrain (engine/transmission)

Reductant Injection Air Pressure Sensor Circuit High

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Can I drive with P2040?

You can usually drive home and book an inspection within a few days.

Frequently asked questions

What does fault code P2040 mean?

P2040 means Reductant Injection Air Pressure Sensor Circuit High.

Can I keep driving with P2040?

You can usually drive home and book an inspection within a few days.

Related fault codes

P2041 — Reductant Injection Air Pressure Sensor Circuit Intermittent
P2042 — Reductant Temperature Sensor Circuit
P2043 — Reductant Temperature Sensor Circuit Range/Performance
P2044 — Reductant Temperature Sensor Circuit Low
P2045 — Reductant Temperature Sensor Circuit High
P2046 — Reductant Temperature Sensor Circuit Intermittent
P2047 — Reductant Injector Circuit/Open (Bank 1 Unit 1)
P2048 — Reductant Injector Circuit Low (Bank 1 Unit 1)
P2049 — Reductant Injector Circuit High (Bank 1 Unit 1)

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