Vacuum pump, brakes - open circuit
VAG · engine
Data confidence62%
The control module detected an interruption (open circuit) in the Vacuum pump, brakes circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Audi.
Possible causes
Wiring open circuit
vacuum pump
Applies toAudi
P1429
Circuit for Brake Vacuum Pump: Open Circuit
VAG · engine
Data confidence84%
The control module detected an interruption (open circuit) in the Circuit for Brake Vacuum Pump circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Volkswagen. Volkswagen Group tools also report it as fault code 17837. Documented across Volkswagen Group applications (Audi, SEAT and Škoda included).
Powertrain: engine, transmission and driveline systems.
1
Manufacturer-defined range: the meaning can differ between brands.
429
Specific fault index within the subsystem.
Frequently asked questions about P1429
What does P1429 mean?
Diagnostic Trouble Code (2 interpretations). The control module detected an interruption (open circuit) in the Vacuum pump, brakes circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Audi.
Is P1429 generic or manufacturer-specific?
P1429 is a manufacturer-specific code. In this database it is documented for: VAG. The same number can mean something different on other brands.
Can TuningBot remove P1429 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.