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TuningBot DTC Database · v4.37.15

P1593 VAG - Diagnostic Trouble Code (2 interpretations)

Manufacturer-specific interpretation for VAG. All interpretations of P1593

P · PowertrainEngineOBD2

What P1593 means

P1593
Altitude adoption - signal outside tolerance VAG · engine Data confidence 62%

The control module detected a fault associated with the Altitude adoption - signal outside tolerance circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Audi.

Possible causes

  • Intake leak
  • MAF sensor
  • throttle control unit
Applies to Audi
P1593
Altitude Adaptation: Signal Out of Tolerance VAG · engine Data confidence 80%

The control module detected a fault associated with the Altitude Adaptation: Signal Out of Tolerance circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Volkswagen. Volkswagen Group tools also report it as fault code 18001. Documented across Volkswagen Group applications (Audi, SEAT and Škoda included).

Symptoms

Unknown

Possible causes

  • MAF sensor (G70) out of tolerance
  • Leak in intake system
  • Throttle position sensors (G187/G188) out of tolerance

Recommended checks

  • Check MAF/replace MAF Sensor (G70)
  • Check intake systems for leaks and repair
  • Check Throttle position sensors (G187/G188)
Applies to Volkswagen

Related and nearby codes

How to read P1593

P

Powertrain: engine, transmission and driveline systems.

1

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

593

Specific fault index within the subsystem.

Frequently asked questions about P1593

What does P1593 mean?

Diagnostic Trouble Code (2 interpretations). The control module detected a fault associated with the Altitude adoption - signal outside tolerance circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Audi.

Is P1593 generic or manufacturer-specific?

P1593 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 P1593 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.

Other file services

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

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