TuningBot DTC Database · v4.37.15
5 manufacturer-specific interpretations across 5 manufacturers in the TuningBot DTC database.
ChevroletThe control module detected a fault associated with the Low Engine Coolant Circuit Conditions 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.
Land RoverThe control module detected a fault associated with the Engine control module (ECM) - programming incomplete 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.
ECM
MINIThe control module detected that the Map Cooling Thermostat Control signal stayed above the expected range. This is the manufacturer-specific definition used by MINI.
OpelThe control module detected a fault associated with the Engine control module (ECM), supply voltage - out of limits circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Opel.
VAGThe control module detected an interruption (open circuit) in the Instrument panel, ECT circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Audi.
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Diagnostic Trouble Code (5 interpretations). The control module detected a fault associated with the Low Engine Coolant Circuit Conditions 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.
P1620 is a manufacturer-specific code. In this database it is documented for: Chevrolet, Land Rover, MINI, Opel, 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. 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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