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.
TuningBot DTC Database · v4.37.15
P1135 Subaru - Front Left Oxygen Sensor Circuit Open
Manufacturer-specific interpretation for Subaru. All interpretations of P1135
What P1135 means
Related and nearby codes
How to read P1135
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
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
Understand the system behind this code: Oxygen Sensors (Lambda)
