Closed throttle position (CTP) switch - does not close
VAG · engine
Data confidence62%
The control module detected a fault associated with the Closed throttle position (CTP) switch - does not close 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
Throttle cable/valve
wiring open circuit/ short to positive
CTP switch adjustment/ defec tive
ECM
Applies toAudi
P1505
Closed throttle position (CTP) switch - does not close
VAG · engine
Data confidence80%
The control module detected a fault associated with the Closed throttle position (CTP) switch - does not close 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.
Powertrain: engine, transmission and driveline systems.
1
Manufacturer-defined range: the meaning can differ between brands.
505
Specific fault index within the subsystem.
Frequently asked questions about P1505
What does P1505 mean?
Closed throttle position (CTP) switch - does not close. The control module detected a fault associated with the Closed throttle position (CTP) switch - does not close 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 P1505 generic or manufacturer-specific?
P1505 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 P1505 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.
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