Hybrid battery pack - individual voltage input deviation
Honda · hybrid
Data confidence62%
The control module detected a fault associated with the Hybrid battery pack - individual voltage input deviation 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.
Evaporative emission (EVAP) leak detection module solenoid - circuit malfunction
Kia · emissions
Data confidence62%
The control module detected improper operation of the Evaporative emission (EVAP) leak detection module solenoid circuit. This is the manufacturer-specific definition used by Kia.
Diagnostic Module Tank Leakage Pump Control Circuit Signal High
MINI · engine
Data confidence62%
The control module detected a condition consistent with a leak affecting the Diagnostic Module Tank. This is the manufacturer-specific definition used by MINI.
Evaporative emission (EVAP) canister purge system - vent control valve malfunction
Nissan · emissions
Data confidence80%
The control module detected improper operation of the Evaporative emission (EVAP) canister purge system - vent control valve. This is the manufacturer-specific definition used by Nissan.
Particle filter additive system : Insufficient quantity of additive remaining in the reservoir
PSA · emissions
Data confidence72%
The control module detected the fault condition "Insufficient quantity of additive remaining in the reservoir" for the Particle filter additive system. Documented for the Bosch EDC16C34 injection ECU (DV6TED4 1.6 HDi) on Peugeot applications; the same PSA control units are also fitted to Citroën models.
Additive adding : Calculated additive level below the critical threshold
PSA · engine
Data confidence72%
The control module detected the fault condition "Calculated additive level below the critical threshold" for the Additive adding. Documented for the Continental SID 807 injection ECU (DV6C 1.6 HDi) on Peugeot applications; the same PSA control units are also fitted to Citroën models.
Additive adding : Calculated additive level below the critical threshold
PSA · engine
Data confidence72%
The control module detected the fault condition "Calculated additive level below the critical threshold" for the Additive adding. Documented for the Delphi DCM 3.5 injection ECU (DW10C 2.0 HDi) on Peugeot applications; the same PSA control units are also fitted to Citroën models.
Particle filter additive system : Insufficient quantity of additive remaining in the reservoir
PSA · emissions
Data confidence72%
The control module detected the fault condition "Insufficient quantity of additive remaining in the reservoir" for the Particle filter additive system. Documented for the Siemens SID 803 injection ECU (DW10BTED4 2.0 HDi) on Peugeot applications; the same PSA control units are also fitted to Citroën models.
Evaporative emission (EVAP) canister purge valve - voltage low
Subaru · emissions
Data confidence62%
The control module detected that the Evaporative emission (EVAP) canister purge valve voltage stayed below the expected range. This is the manufacturer-specific definition used by Subaru.
Catalyst Temperature Circuit Short To Ground
VAG · emissions
Data confidence62%
The control module detected a short circuit to ground in the Catalyst Temperature circuit. This is the manufacturer-specific definition used by Audi.
Possible causes
Wiring short to ground
temperature sensor
ECM
Applies toAudi
P1446
Catalyst Temperature Circuit Short To Ground
VAG · emissions
Data confidence80%
The control module detected a short circuit to ground in the Catalyst Temperature circuit. This is the manufacturer-specific definition used by Volkswagen.
Powertrain: engine, transmission and driveline systems.
1
Manufacturer-defined range: the meaning can differ between brands.
446
Specific fault index within the subsystem.
Frequently asked questions about P1446
What does P1446 mean?
Diagnostic Trouble Code (11 interpretations). The control module detected a fault associated with the Hybrid battery pack - individual voltage input deviation 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 P1446 generic or manufacturer-specific?
P1446 is a manufacturer-specific code. In this database it is documented for: Honda, Kia, MINI, Nissan, PSA, Subaru, VAG. The same number can mean something different on other brands.
Can TuningBot remove P1446 at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry and, where the ECU needs it, corrects the checksum too. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.