Fuel shut - off solenoid - open circuit/short to ground
VAG · engine
Data confidence62%
The control module detected an interruption (open circuit) in the Fuel shut - off solenoid circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Audi.
Possible causes
Wiring open circuit/short to ground
fuel shut - off solenoid
Applies toAudi
P1538
Fuel Shutoff Solenoid (N109)
VAG · engine
Data confidence80%
The control module detected a fault associated with the Fuel Shutoff Solenoid (N109) 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 17946. Documented stored variants include: Open or Short to Ground. Documented across Volkswagen Group applications (Audi, SEAT and Škoda included).
Possible causes
Fuel Shutoff Solenoid (N109) Faulty
Wiring to / from Fuel Shutoff Solenoid (N109) Faulty
Engine Control Module Faulty
Recommended checks
Check Fuel Shutoff Solenoid (N109) using Output Tests
Powertrain: engine, transmission and driveline systems.
1
Manufacturer-defined range: the meaning can differ between brands.
538
Specific fault index within the subsystem.
Frequently asked questions about P1538
What does P1538 mean?
Diagnostic Trouble Code (2 interpretations). The control module detected an interruption (open circuit) in the Fuel shut - off solenoid circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Audi.
Is P1538 generic or manufacturer-specific?
P1538 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 P1538 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.