Ignition control module (ICM) - ignition coil secondary coil signal, circuit 2
Honda · ignition
Data confidence62%
The control module detected a fault associated with the Ignition control module (ICM) - ignition coil secondary coil signal, circuit 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 Honda.
The control module detected a fault associated with the IG.Coil.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 Hyundai.
Injection Pump Timing Actuator Circuit
Mazda · engine
Data confidence62%
The control module detected improper operation of the Injection Pump Timing Actuator circuit. This is the manufacturer-specific definition used by Mazda.
Exhaust gas temperature sensor
Subaru · emissions
Data confidence80%
The control module detected a fault associated with the Exhaust gas temperature sensor circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Subaru.
Powertrain: engine, transmission and driveline systems.
1
Manufacturer-defined range: the meaning can differ between brands.
312
Specific fault index within the subsystem.
Frequently asked questions about P1312
What does P1312 mean?
Diagnostic Trouble Code (4 interpretations). The control module detected a fault associated with the Ignition control module (ICM) - ignition coil secondary coil signal, circuit 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 Honda.
Is P1312 generic or manufacturer-specific?
P1312 is a manufacturer-specific code. In this database it is documented for: Honda, Hyundai, Mazda, Subaru. The same number can mean something different on other brands.
Can TuningBot remove P1312 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.
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Honda
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