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TuningBot DTC Database · v4.37.15

P1133 Diagnostic Trouble Code (12 interpretations)

12 manufacturer-specific interpretations across 12 manufacturers in the TuningBot DTC database.

BMW

1 interpretation
P1133
O2 Sensor Heater Control Circuit Bank 2 Sensor 1 BMW · emissions Data confidence 62%

The control module detected a fault associated with the O2 Sensor Heater Control Circuit Bank 2 Sensor 1 circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by BMW.

Recommended checks

  • Perform a full module scan
  • Review freeze-frame and occurrence data
  • Inspect relevant wiring and connectors
  • Check power supplies and grounds
  • Check applicable OEM service information

Chevrolet

1 interpretation
P1133
Heated oxygen sensor (HO2S) 1, bank 1 insufficient switching Chevrolet · emissions Data confidence 80%

The control module detected a fault associated with the Heated oxygen sensor (HO2S) 1, bank 1 insufficient switching circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Chevrolet.

Possible causes

  • Wiring
  • exhaust system leaking
  • HO2S

Chrysler

1 interpretation
P1133
HO2S Insufficient Switching Chrysler · emissions Data confidence 62%

The control module detected a fault associated with the HO2S Insufficient Switching circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Chrysler.

Recommended checks

  • Perform a full module scan
  • Review freeze-frame and occurrence data
  • Compare commanded and measured values
  • Check applicable OEM service information

Dodge

1 interpretation
P1133
ECT Sensor Circuit Interm Low Voltage Dodge · thermal_management Data confidence 62%

The control module detected a fault associated with the ECT Sensor Circuit Interm Low Voltage circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Dodge.

Ford

1 interpretation
P1133
Bank 1 Fuel Control Shifted Lean Ford · engine Data confidence 80%

The control module detected a fault associated with the Bank 1 Fuel Control Shifted Lean circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Ford.

Honda

1 interpretation
P1133
Heated oxygen sensor (HO2S) - RH front - insufficient switching Honda · emissions Data confidence 62%

The control module detected a fault associated with the Heated oxygen sensor (HO2S) - RH front - insufficient switching circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Honda.

Possible causes

  • Exhaust system
  • wiring
  • HO2S
  • ECM

Hyundai

1 interpretation
P1133
Vapor Fuel Solenoid Malfunction Hyundai · engine Data confidence 62%

The control module detected improper operation of the Vapor Fuel Solenoid. This is the manufacturer-specific definition used by Hyundai.

PSA

1 interpretation
P1133
Throttle position incoherence, track 1 / pressure : Coherence PSA · engine Data confidence 72%

The control module detected that the Throttle position incoherence, track 1 / pressure was not coherent with related operating data. Documented for the Magneti Marelli MM6KP engine ECU (EW7A/EW10A) on Peugeot applications; the same PSA control units are also fitted to Citroën models.

Applies to Peugeot Magneti Marelli MM6KP engine ECU (EW7A/EW10A)

Subaru

1 interpretation
P1133
Heated oxygen sensor (HO2S) 1 - voltage high Subaru · emissions Data confidence 62%

The control module detected that the Heated oxygen sensor (HO2S) 1 voltage stayed above the expected range. This is the manufacturer-specific definition used by Subaru.

Possible causes

  • Wiring
  • H025
  • ECM

Suzuki

1 interpretation
P1133
HO2S11 Too Few Transitions Suzuki · engine Data confidence 62%

The control module detected a fault associated with the HO2S11 Too Few Transitions circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Suzuki.

VAG

1 interpretation
P1133
Heated oxygen sensor (HO2S) 1, Bank 1 & 2 - heater control - circuit low VAG · emissions Data confidence 62%

The control module detected that the signal in the Heated oxygen sensor (HO2S) 1, Bank 1 & 2 - heater control circuit stayed below the expected operating range. This is the manufacturer-specific definition used by Audi.

Possible causes

  • Wiring open circuit/short to ground
  • HO2S
Applies to Audi

Volvo

1 interpretation
P1133
Heated oxygen sensor (HO2S) 1, bank 1 - no signal Volvo · emissions Data confidence 62%

The control module did not receive the expected Heated oxygen sensor (HO2S) 1, bank 1 signal. This is the manufacturer-specific definition used by Volvo.

Possible causes

  • Wiring
  • multi - plug incorrectly connected
  • HO2S

Related and nearby codes

How to read P1133

P

Powertrain: engine, transmission and driveline systems.

1

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

133

Specific fault index within the subsystem.

Frequently asked questions about P1133

What does P1133 mean?

Diagnostic Trouble Code (12 interpretations). The control module detected a fault associated with the O2 Sensor Heater Control Circuit Bank 2 Sensor 1 circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by BMW.

Is P1133 generic or manufacturer-specific?

P1133 is a manufacturer-specific code. In this database it is documented for: BMW, Chevrolet, Chrysler, Dodge, Ford, Honda, Hyundai, PSA, Subaru, Suzuki, VAG, Volvo. The same number can mean something different on other brands.

Can TuningBot remove P1133 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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