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TuningBot DTC Database · v4.37.15

P1148 Nissan - Closed loop control - bank 1 - inoperative

Manufacturer-specific interpretation for Nissan. All interpretations of P1148

P · PowertrainEngineOBD2

What P1148 means

P1148
Closed loop control - bank 1 - inoperative Nissan · engine Data confidence 80%

The control module registered the fault condition described as "Closed loop control - bank 1 - inoperative". This is the manufacturer-specific definition used by Nissan.

Possible causes

  • Wiring
  • HO2S front
  • ECM

Related and nearby codes

How to read P1148

P

Powertrain: engine, transmission and driveline systems.

1

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

148

Specific fault index within the subsystem.

Frequently asked questions about P1148

What does P1148 mean?

Closed loop control - bank 1 - inoperative. The control module registered the fault condition described as "Closed loop control - bank 1 - inoperative". This is the manufacturer-specific definition used by Nissan.

Is P1148 generic or manufacturer-specific?

P1148 is a manufacturer-specific code. In this database it is documented for: Nissan. The same number can mean something different on other brands.

Can TuningBot remove P1148 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 Nissan engines See the results →

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