EVAP Vacuum Switch High Voltage During Ignition On
Chrysler · emissions
Data confidence62%
The control module detected a fault associated with the EVAP Vacuum Switch High Voltage During Ignition On circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Chrysler.
Recommended checks
Perform a full module scan
Review freeze-frame and occurrence data
Confirm the exact vehicle, ECU and software context
Evaporative emission (EVAP) canister purge system - vacuum switch malfunction
Honda · emissions
Data confidence62%
The control module detected improper operation of the Evaporative emission (EVAP) canister purge system - vacuum switch. This is the manufacturer-specific definition used by Honda.
Evaporative emission (EVAP) system - leak detected
Land Rover · emissions
Data confidence62%
The control module detected a condition consistent with a leak affecting the Evaporative emission (EVAP) system. This is the manufacturer-specific definition used by Land Rover.
Secondary air injection (AIR) switching valve, valve stuck closed, bank 1 - circuit malfunction
Lexus · emissions
Data confidence62%
The control module detected improper operation of the Secondary air injection (AIR) switching valve, valve stuck closed, bank 1 circuit. This is the manufacturer-specific definition used by Lexus.
Evaporative emission (EVAP) system - system leak detected
Mazda · emissions
Data confidence62%
The control module detected a condition consistent with a leak affecting the Evaporative emission (EVAP) system - system. This is the manufacturer-specific definition used by Mazda.
Evaporative emission (EVAP) canister purge system - small leak
Nissan · emissions
Data confidence62%
The control module detected a condition consistent with a leak affecting the Evaporative emission (EVAP) canister purge system - small. This is the manufacturer-specific definition used by Nissan.
Particle filter additive system : Adding additive impossible, or an incorrect signal from the additive level sensor
PSA · emissions
Data confidence72%
The control module detected an internal control-unit fault (Adding additive impossible, or an incorrect signal from the additive level sensor). 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.
Control of the additive pump by wire : Open circuit
PSA · engine
Data confidence72%
The control module detected an interruption (open circuit) in the Control of the additive pump by wire circuit. 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.
Wired additive pump : Open circuit
PSA · engine
Data confidence72%
The control module detected an interruption (open circuit) in the Wired additive pump circuit. 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.
Fuel level sensor - range/performance problem
Subaru · fuel
Data confidence80%
The control module judged the Fuel level behaviour implausible for the current operating conditions. This is the manufacturer-specific definition used by Subaru.
Stuck Closed In Secondary Air Injection Vacuum Switching Valve Bank 1
Toyota · emissions
Data confidence62%
The control module determined that the Stuck Closed In Secondary Air Injection Vacuum Switching Valve Bank 1 did not change state as commanded and appears stuck. This is the manufacturer-specific definition used by Toyota.
Exhaust gas recirculation (EGR) valve position sensor - high input
VAG · emissions
Data confidence62%
The control module detected that the Exhaust gas recirculation (EGR) valve position signal stayed above the expected range. This is the manufacturer-specific definition used by Audi.
Possible causes
Wiring short to positive
EGR valve position sensor
Applies toAudi
P1442
Exhaust gas recirculation (EGR) valve position sensor - high input
VAG · emissions
Data confidence80%
The control module detected that the Exhaust gas recirculation (EGR) valve position signal stayed above the expected range. 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.
442
Specific fault index within the subsystem.
Frequently asked questions about P1442
What does P1442 mean?
Diagnostic Trouble Code (13 interpretations). The control module detected a fault associated with the EVAP Vacuum Switch High Voltage During Ignition On circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Chrysler.
Is P1442 generic or manufacturer-specific?
P1442 is a manufacturer-specific code. In this database it is documented for: Chrysler, Honda, Land Rover, Lexus, Mazda, Nissan, PSA, Subaru, Toyota, VAG. The same number can mean something different on other brands.
Can TuningBot remove P1442 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.
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Chrysler
Honda
Land Rover
Lexus
Mazda
Nissan
PSA
Subaru
Toyota
VAG