P2203 — NOx Sensor Circuit High (Bank 1)

Powertrain (engine/transmission)

NOx Sensor Circuit High (Bank 1)

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Can I drive with P2203?

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

Frequently asked questions

What does fault code P2203 mean?

P2203 means NOx Sensor Circuit High (Bank 1).

Can I keep driving with P2203?

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

Related fault codes

• P2200 — NOx Sensor Circuit (Bank 1)
• P2201 — NOx Sensor Circuit Range/Performance (Bank 1)
• P2202 — NOx Sensor Circuit Low (Bank 1)
• P2204 — NOx Sensor Circuit Intermittent (Bank 1)
• P2205 — NOx Sensor Heater Control Circuit/Open (Bank 1)
• P2206 — NOx Sensor Heater Control Circuit Low (Bank 1)
• P2207 — NOx Sensor Heater Control Circuit High (Bank 1)
• P2208 — NOx Sensor Circuit (Bank 2)
• P2209 — NOx Sensor Circuit Range/Performance (Bank 2)

Get a full diagnosis for P2203 with AutoUncover.