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TuningBot DTC Database · v4.37.15

P242B Exhaust gas temperature sensor 3, bank 1 - circuit range/performance

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

P · PowertrainEmissionsOBD2

What P242B means

P242B
Exhaust gas temperature sensor 3, bank 1 - circuit range/performance Generic · emissions Data confidence 78%

The control module judged the Exhaust gas temperature sensor 3, bank 1 signal implausible: it stayed inside electrical limits but did not match the value expected for the current operating conditions.

Possible causes

  • Wiring
  • exhaust gas temperature sensor
  • ECM

Related and nearby codes

How to read P242B

P

Powertrain: engine, transmission and driveline systems.

2

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

42B

Specific fault index within the subsystem.

Frequently asked questions about P242B

What does P242B mean?

Exhaust gas temperature sensor 3, bank 1 - circuit range/performance. The control module judged the Exhaust gas temperature sensor 3, bank 1 signal implausible: it stayed inside electrical limits but did not match the value expected for the current operating conditions.

Is P242B generic or manufacturer-specific?

P242B is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P242B 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

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