TuningBot DTC Database · v4.37.15
10 manufacturer-specific interpretations across 9 manufacturers in the TuningBot DTC database.
ChevroletThe control module detected a fault associated with the Driver 1 Line 7 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.
FordThe control module detected a fault associated with the Linear O2 Sensor Control Chip Bank 2 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.
Ford documents P1647:00 (no sub type information) for its 2024-2025 gasoline-engine OBD monitor strategy as linear o2 sensor control chip, bank 2. This three-byte interpretation is application-specific and identifies the detected monitor condition rather than a confirmed failed component.
HondaThe control module detected a fault associated with the Engine speed signal - circuit problem circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Honda.
HyundaiThe control module detected that the Booster Voltage value was below the expected limit. This is the manufacturer-specific definition used by Hyundai.
JeepThe control module detected that the signal in the Engine coolant hydraulic blower motorsolenoid/ circuit stayed below the expected operating range. This is the manufacturer-specific definition used by Jeep.
LexusThe control module detected improper operation of the Transmission Control Module System. This is the manufacturer-specific definition used by Lexus.
ToyotaThe control module detected improper operation of the Transmission control module (TCM) - system. This is the manufacturer-specific definition used by Toyota.
Trouble code(s) stored
VAGThe control module detected a fault associated with the Check Coding of ECUs on Powertrain Data Bus 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. Volkswagen Group tools also report it as fault code 18055. Documented across Volkswagen Group applications (Audi, SEAT and Škoda included).
Malfunction Indicator Light (MIL) active
Coding of Powertrain related Control Modules wrong/incomplete
VolvoThe control module detected that the AIC relay signal stayed above the expected range. 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 (10 interpretations). The control module detected a fault associated with the Driver 1 Line 7 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.
P1647 is a manufacturer-specific code. In this database it is documented for: Chevrolet, Ford, Honda, Hyundai, Jeep, Lexus, 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: Oxygen Sensors (Lambda)
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