P1538 Diagnose-Fehlercode (6 Interpretationen)

The control module detected that the signal in the A/C Request circuit stayed above the expected operating range. This is the manufacturer-specific definition used by Chevrolet.

The control module detected that the signal in the A/C Request circuit stayed above the expected operating range. This is the manufacturer-specific definition used by Chrysler.

The control module determined that the Intake Manifold Runner Control did not change state as commanded and appears stuck. This is the manufacturer-specific definition used by Ford.

The control module determined that the Intake manifold air control solenoid, bank 2 - solenoid did not change state as commanded and appears stuck. This is the manufacturer-specific definition used by Mazda.

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.

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).