TuningBot DTC Database · v4.37.14
6 manufacturer-specific interpretations across 6 manufacturers in the TuningBot DTC database.
BMWThe control module detected improper operation of the Throttle position (TP) control. This is the manufacturer-specific definition used by BMW.
FordThe control module detected that the measured gear ratio did not match the commanded gear (Gear 1). This is the manufacturer-specific definition used by Ford.
HyundaiThe control module detected a fault associated with the Control Relay circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Hyundai.
NissanThe control module detected a fault associated with the Vehicle Speed Sensor MTR circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Nissan.
VAGThe control module judged the Wheel Speed Signal 3 behaviour implausible for the current operating conditions. This is the manufacturer-specific definition used by Volkswagen.
VolvoThe control module detected that the Module cooling fan signal stayed above the expected range. This is the manufacturer-specific definition used by Volvo.
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Diagnostic Trouble Code (6 interpretations). The control module detected improper operation of the Throttle position (TP) control. This is the manufacturer-specific definition used by BMW.
P1721 is a manufacturer-specific code. In this database it is documented for: BMW, Ford, Hyundai, Nissan, VAG, Volvo. 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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