Altitude adoption - signal outside tolerance
VAG · engine
Data confidence62%
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 toAudi
P1593
Altitude Adaptation: Signal Out of Tolerance
VAG · engine
Data confidence80%
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
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.