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TuningBot DTC Database · v4.37.15

P1198 VAG - Diagnostic Trouble Code (2 interpretations)

Manufacturer-specific interpretation for VAG. All interpretations of P1198

P · PowertrainEmissionsOBD2

What P1198 means

P1198
Heated oxygen sensor (HO2S) 2, Bank 1, heater circuit malfunction VAG · emissions Data confidence 62%

The control module detected improper operation of the Heated oxygen sensor (HO2S) 2, Bank 1, heater circuit. This is the manufacturer-specific definition used by Audi.

Possible causes

  • Wiring
  • HO2S
Applies to Audi
P1198
Heated oxygen sensor (HO2S) heater circuit malfunction VAG · emissions Data confidence 80%

The control module detected improper operation of the Heated oxygen sensor (HO2S) heater circuit. This is the manufacturer-specific definition used by Volkswagen.

Possible causes

  • Wiring
  • HO2S
Applies to Volkswagen

Related and nearby codes

How to read P1198

P

Powertrain: engine, transmission and driveline systems.

1

Manufacturer-defined range: the meaning can differ between brands.

198

Specific fault index within the subsystem.

Frequently asked questions about P1198

What does P1198 mean?

Diagnostic Trouble Code (2 interpretations). The control module detected improper operation of the Heated oxygen sensor (HO2S) 2, Bank 1, heater circuit. This is the manufacturer-specific definition used by Audi.

Is P1198 generic or manufacturer-specific?

P1198 is a manufacturer-specific code. In this database it is documented for: VAG. The same number can mean something different on other brands.

Can TuningBot remove P1198 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 tuningStage 1 dyno results for VAG engines See the results →

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