TuningBot DTC Database · v4.37.15
6 manufacturer-specific interpretations across 5 manufacturers in the TuningBot DTC database.
BMWThe control module detected that the Manifold differential pressure signal stayed below the expected range. This is the manufacturer-specific definition used by BMW.
Wiring short to ground
JeepThe control module detected improper operation of the Glow plug control module/supply circuit. This is the manufacturer-specific definition used by Jeep.
MazdaThe control module detected a fault associated with the Fuel Injection Pump Module circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Mazda.
VAGThe control module did not receive the expected CAN data bus, ABS signal. This is the manufacturer-specific definition used by Audi.
The control module did not receive the expected Powertrain Data Bus signal. This is the manufacturer-specific definition used by Volkswagen. Volkswagen Group tools also report it as fault code 18057. Documented across Volkswagen Group applications (Audi, SEAT and Škoda included).
Malfunction Indicator Light (MIL) ON
VolvoThe control module detected that the Camshaft position (CMP) actuator, inlet camshaft signal stayed below 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 that the Manifold differential pressure signal stayed below the expected range. This is the manufacturer-specific definition used by BMW.
P1649 is a manufacturer-specific code. In this database it is documented for: BMW, Jeep, Mazda, 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. 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.
Understand the system behind this code: Diagnostic Strategy and DTC Logic
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