Hours: 07–23 daily

TuningBot DTC Database · v4.37.15

P1135 Subaru - Front Left Oxygen Sensor Circuit Open

Manufacturer-specific interpretation for Subaru. All interpretations of P1135

P · PowertrainEmissionsOBD2

What P1135 means

P1135
Front Left Oxygen Sensor Circuit Open Subaru · emissions Data confidence 62%

The control module detected an interruption (open circuit) in the Front Left Oxygen circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Subaru.

Related and nearby codes

How to read P1135

P

Powertrain: engine, transmission and driveline systems.

1

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

135

Specific fault index within the subsystem.

Frequently asked questions about P1135

What does P1135 mean?

Front Left Oxygen Sensor Circuit Open. The control module detected an interruption (open circuit) in the Front Left Oxygen circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Subaru.

Is P1135 generic or manufacturer-specific?

P1135 is a manufacturer-specific code. In this database it is documented for: Subaru. The same number can mean something different on other brands.

Can TuningBot remove P1135 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