CAN Torque Reduction
BMW · engine
Data confidence62%
The control module detected a fault associated with the CAN Torque Reduction circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by BMW.
Transmission Control Switch Circuit is Out of Self - Test Range
Ford · transmission
Data confidence80%
The control module detected a fault associated with the Transmission Control Switch Circuit is Out of Self - Test 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 Ford.
Transmission control module (TCM) - ignition advance circuit malfunction
Kia · transmission
Data confidence62%
The control module detected improper operation of the Transmission control module (TCM) - ignition advance circuit. This is the manufacturer-specific definition used by Kia.
Possible causes
Wiring open circuit/short circuit to ground/ positive
Transmission mode selection switch - 0/D Cancel
Land Rover · engine
Data confidence62%
The control module detected a fault associated with the Transmission mode selection switch - 0/D Cancel 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.
Modulation Pressure Switchover Valve ATCC Y34 Or Upshift Delay Switchover Valve ATCC Y35
Mercedes-Benz · engine
Data confidence62%
The control module detected a fault associated with the Modulation Pressure Switchover Valve ATCC Y34 Or Upshift Delay Switchover Valve ATCC Y35 circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Mercedes-Benz.
Throttle position (TP) sensor, traction control - circuit malfunction
Opel · engine
Data confidence62%
The control module detected improper operation of the Throttle position (TP) sensor, traction control circuit. This is the manufacturer-specific definition used by Opel.
Park/neutral position (PNP) switch - circuit malfunction
Toyota · engine
Data confidence80%
The control module detected improper operation of the Park/neutral position (PNP) switch circuit. This is the manufacturer-specific definition used by Toyota.
Engine Intervention Readable
VAG · engine
Data confidence62%
The control module detected a fault associated with the Engine Intervention Readable 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.
1
Manufacturer-defined range: the meaning can differ between brands.
780
Specific fault index within the subsystem.
Frequently asked questions about P1780
What does P1780 mean?
Diagnostic Trouble Code (8 interpretations). The control module detected a fault associated with the CAN Torque Reduction circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by BMW.
Is P1780 generic or manufacturer-specific?
P1780 is a manufacturer-specific code. In this database it is documented for: BMW, Ford, Kia, Land Rover, Mercedes-Benz, Opel, Toyota, VAG. The same number can mean something different on other brands.
Can TuningBot remove P1780 at file level?
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.
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BMW
Ford
Kia
Land Rover
Mercedes-Benz
Opel
Toyota
VAG