TuningBot DTC Database · v4.37.14
10 manufacturer-specific interpretations across 9 manufacturers in the TuningBot DTC database.
BMWThe control module detected improper operation of the WT sensor circuit. This is the manufacturer-specific definition used by BMW.
Variable valve timing sensor
ChevroletThe control module detected a fault associated with the Transmission Engaged at High Throttle Angle circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Chevrolet.
DodgeThe control module detected improper operation of the Engine oil sensor module. This is the manufacturer-specific definition used by Dodge.
JeepThe control module detected improper operation of the Engine oil sensor module. This is the manufacturer-specific definition used by Jeep.
KiaThe control module detected improper operation of the Power steering pressure (PSP) switch circuit. This is the manufacturer-specific definition used by Kia.
MazdaThe control module detected an interruption (open circuit) in the Intake manifold air control solenoid 1 - short/ circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Mazda.
MINIThe control module detected a fault associated with the Oil Condition Sensor circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by MINI.
SubaruThe control module detected a fault associated with the Brake Switch Circuit Range circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Subaru.
VAGThe control module detected an electrical fault in the Intake Manifold Changeover Valve 2 circuit. This is the manufacturer-specific definition used by Audi.
The control module detected an electrical fault in the Intake Manifold Changeover Valve 2 circuit. This is the manufacturer-specific definition used by Volkswagen.
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Diagnostic Trouble Code (10 interpretations). The control module detected improper operation of the WT sensor circuit. This is the manufacturer-specific definition used by BMW.
P1521 is a manufacturer-specific code. In this database it is documented for: BMW, Chevrolet, Dodge, Jeep, Kia, Mazda, MINI, Subaru, VAG. The same number can mean something different on other brands.
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry and, where the ECU needs it, corrects the checksum too. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.
Understand the system behind this code: Diagnostic Strategy and DTC Logic
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