The control module detected that the Heated Catalyst Gate Voltage signal stayed below the expected range. This is the manufacturer-specific definition used by BMW.
TuningBot DTC Database · v4.37.15
P1302 Diagnostic Trouble Code (6 interpretations)
6 manufacturer-specific interpretations across 6 manufacturers in the TuningBot DTC database.
BMW
1 interpretation
Ford
1 interpretationThe control module detected a fault associated with the Boost Pressure Low 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 interpretationThe control module detected crankshaft speed fluctuations consistent with combustion misfire (Cylinder Number 2 Random). This is the manufacturer-specific definition used by Honda.
Hyundai
1 interpretationThe control module detected that the TDC signal stayed below the expected range. This is the manufacturer-specific definition used by Hyundai.
Land Rover
1 interpretationThe control module detected crankshaft speed fluctuations consistent with combustion misfire (Cylinder 2). This is the manufacturer-specific definition used by Land Rover.
Possible causes
- Engine mechanical fault
- wiring
- ignition/fuel system
- injector
- ECT/MAF sensor
- ECM
MINI
1 interpretationThe control module detected a fault associated with the Misfiring Cylinder 2 circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by MINI.
Related and nearby codes
How to read P1302
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 P1302
What does P1302 mean?
Diagnostic Trouble Code (6 interpretations). The control module detected that the Heated Catalyst Gate Voltage signal stayed below the expected range. This is the manufacturer-specific definition used by BMW.
Is P1302 generic or manufacturer-specific?
P1302 is a manufacturer-specific code. In this database it is documented for: BMW, Ford, Honda, Hyundai, Land Rover, MINI. The same number can mean something different on other brands.
Can TuningBot remove P1302 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)
