Hours: 07–23 daily

TuningBot DTC Database · v4.37.15

P2218 Nitrogen oxides (NOx) sensor, bank 2, heater control - open circuit

Generic (OBD-II) interpretation in the TuningBot DTC database.

P · PowertrainEngineOBD2

What P2218 means

P2218
Nitrogen oxides (NOx) sensor, bank 2, heater control - open circuit Generic · engine Data confidence 78%

The control module detected an interruption (open circuit) in the Nitrogen oxides (NOx) sensor, bank 2, heater control circuit, so the expected electrical continuity was not present.

Possible causes

  • Wiring
  • NOx sensor

Related and nearby codes

How to read P2218

P

Powertrain: engine, transmission and driveline systems.

2

Generic SAE-standard code: same meaning on every make.

218

Specific fault index within the subsystem.

Frequently asked questions about P2218

What does P2218 mean?

Nitrogen oxides (NOx) sensor, bank 2, heater control - open circuit. The control module detected an interruption (open circuit) in the Nitrogen oxides (NOx) sensor, bank 2, heater control circuit, so the expected electrical continuity was not present.

Is P2218 generic or manufacturer-specific?

P2218 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P2218 at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.

Other file services

ECU tuningDyno-tested results by model and engine See the results →

← Search the full DTC database