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TuningBot DTC Database · v4.37.14

P1434 VAG - Diagnostic Trouble Code (2 interpretations)

Manufacturer-specific interpretation for VAG. All interpretations of P1434

P · PowertrainEmissionsOBD2

What P1434 means

P1434
Secondary air injection (AIR) pump relay - short to positive VAG · emissions Data confidence 62%

The control module detected a short circuit to battery voltage in the Secondary air injection (AIR) pump relay circuit. This is the manufacturer-specific definition used by Audi.

Possible causes

  • Wiring short to positive
  • AIR pump relay
Applies to Audi
P1434
Secondary Air Pump Relay (J299): Short to Plus VAG · emissions Data confidence 88%

The control module detected a short circuit to battery voltage in the Secondary Air Pump Relay (J299) circuit. This is the manufacturer-specific definition used by Volkswagen. Volkswagen Group tools also report it as fault code 17842. Documented across Volkswagen Group applications (Audi, SEAT and Škoda included).

Possible causes

Secondary Air Pump Relay (J299) faulty

Recommended checks

Check Secondary Air Pump Relay (J299)

Applies to Volkswagen

Related and nearby codes

How to read P1434

P

Powertrain: engine, transmission and driveline systems.

1

Manufacturer-defined range: the meaning can differ between brands.

434

Specific fault index within the subsystem.

Frequently asked questions about P1434

What does P1434 mean?

Diagnostic Trouble Code (2 interpretations). The control module detected a short circuit to battery voltage in the Secondary air injection (AIR) pump relay circuit. This is the manufacturer-specific definition used by Audi.

Is P1434 generic or manufacturer-specific?

P1434 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 P1434 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.

Other file services

ECU tuningStage 1 dyno results for VAG engines See the results →

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