TuningBot DTC Database · v4.37.14
10 manufacturer-specific interpretations across 8 manufacturers in the TuningBot DTC database.
BMWThe control module registered the fault condition described as "Battery temperature sensor circuit - current error". This is the manufacturer-specific definition used by BMW.
Battery temperature sensor
FordThe control module detected improper operation of the Fuel Pump Speed Control circuit. This is the manufacturer-specific definition used by Ford.
HondaThe control module detected improper operation of the Motor control module (MCM). This is the manufacturer-specific definition used by Honda.
Land RoverThe control module detected a fault associated with the Fuel pump (FP) - pump speed control circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Land Rover.
Mercedes-BenzThe control module detected that the Transmission control module (TCM) - supply voltage stayed below the expected range. This is the manufacturer-specific definition used by Mercedes-Benz.
PSAThe control module detected a short circuit to battery voltage in the Accelerator pedal point of resistance sensor information circuit. Documented for the Bosch EDC16C34 injection ECU (DV6TED4 1.6 HDi) on Peugeot applications; the same PSA control units are also fitted to Citroën models.
The control module detected a short circuit to battery voltage in the Accelerator pedal hard point switch signal circuit. Documented for the Magneti Marelli MM6KP engine ECU (EW7A/EW10A) on Peugeot applications; the same PSA control units are also fitted to Citroën models.
The control module detected a short circuit to battery voltage in the Accelerator pedal point of resistance information fault circuit. Documented for the Siemens SID 803 injection ECU (DW10BTED4 2.0 HDi) on Peugeot applications; the same PSA control units are also fitted to Citroën models.
RenaultThe control module detected a fault associated with the Heater relay control 1 circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Renault.
VAGThe control module detected a fault associated with the Check DTC Memory Of Clutch ECU 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.
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 registered the fault condition described as "Battery temperature sensor circuit - current error". This is the manufacturer-specific definition used by BMW.
P1644 is a manufacturer-specific code. In this database it is documented for: BMW, Ford, Honda, Land Rover, Mercedes-Benz, PSA, Renault, 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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