The control module detected improper operation of the Ignition power stage A circuit. This is the manufacturer-specific definition used by Hyundai.
TuningBot DTC Database · v4.37.15
P1665 Diagnostic Trouble Code (5 interpretations)
5 manufacturer-specific interpretations across 4 manufacturers in the TuningBot DTC database.
Hyundai
1 interpretation
Kia
1 interpretationThe control module detected a fault associated with the Power Stage Group 'A' circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Kia.
Land Rover
1 interpretationThe control module detected a short circuit to battery voltage in the Throttle angle/torque signal - ABS/HDC wiring circuit. This is the manufacturer-specific definition used by Land Rover.
Possible causes
- Wiring
- ABS system
- HOC system
VAG
2 interpretationsThe control module registered the fault condition described as "Injector - mechanical fault". This is the manufacturer-specific definition used by Audi.
Possible causes
Injector
The control module registered the fault condition described as "Injector - mechanical fault". This is the manufacturer-specific definition used by Volkswagen.
Possible causes
Injector
Related and nearby codes
How to read P1665
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Frequently asked questions about P1665
What does P1665 mean?
Diagnostic Trouble Code (5 interpretations). The control module detected improper operation of the Ignition power stage A circuit. This is the manufacturer-specific definition used by Hyundai.
Is P1665 generic or manufacturer-specific?
P1665 is a manufacturer-specific code. In this database it is documented for: Hyundai, Kia, Land Rover, VAG. The same number can mean something different on other brands.
Can TuningBot remove P1665 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.
Other file services
Understand the system behind this code: Diagnostic Strategy and DTC Logic
