TuningBot DTC Database · v4.37.15
11 manufacturer-specific interpretations across 10 manufacturers in the TuningBot DTC database.
HondaThe control module detected improper operation of the Integrated motor assist - system. This is the manufacturer-specific definition used by Honda.
Other integrated motor assist codes stored
HyundaiThe control module detected a fault associated with the ECU ‘L’ Line circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Hyundai.
MitsubishiThe control module detected a communication fault involving ECM to throttle control unit on the vehicle network. This is the manufacturer-specific definition used by Mitsubishi.
ECM
OpelThe control module detected a fault associated with the Module temperature switch, ECM - temperature high 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.
PorscheThe control module detected a fault associated with the Voltage Supply circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Porsche.
PSAThe control module detected the fault condition "Short-circuit to positive, short-circuit to earth, open circuit" for the Petrol pump relay control. Documented for the Magneti Marelli MM6KP engine ECU (EW7A/EW10A) on Peugeot applications; the same PSA control units are also fitted to Citroën models.
SuzukiThe control module detected a communication fault involving Engine control module (ECM), CAN data bus on the vehicle network. This is the manufacturer-specific definition used by Suzuki.
ToyotaThe control module detected improper operation of the Injector Correction circuit. This is the manufacturer-specific definition used by Toyota.
VAGThe control module detected a fault associated with the Engine control module (ECM) - supply voltage circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Audi.
The control module judged the Relay for Supply Voltage Terminal 30 (J317) signal implausible when compared with other operating data. This is the manufacturer-specific definition used by Volkswagen. Volkswagen Group tools also report it as fault code 18009. Documented across Volkswagen Group applications (Audi, SEAT and Škoda included).
VolvoThe control module detected improper operation of the Electronic throttle system (ETS), throttle motor circuit. 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 (11 interpretations). The control module detected improper operation of the Integrated motor assist - system. This is the manufacturer-specific definition used by Honda.
P1601 is a manufacturer-specific code. In this database it is documented for: Honda, Hyundai, Mitsubishi, Opel, Porsche, PSA, Suzuki, Toyota, 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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