TuningBot DTC Database · v4.37.15
6 manufacturer-specific interpretations across 5 manufacturers in the TuningBot DTC database.
ChevroletThe control module detected a fault associated with the Anti - Theft Device Wrong Security Code 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.
HondaThe control module detected a fault associated with the Motor control module (MCM) - communication 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.
JeepThe control module detected improper operation of the Glow plug control module/supply circuit. This is the manufacturer-specific definition used by Jeep.
PSAThe stored code identifies a fault of the ECU downloading or Reset fault. Documented for the Bosch MED 17.4.x engine ECU (EP6 THP family) on Peugeot applications; the same PSA control units are also fitted to Citroën models. PSA documentation does not characterise the failure mode further.
The stored code identifies a fault of the ECU downloading or Reset fault. Documented for the Bosch MEV17.4 engine ECU (EP6 1.6 VTi) on Peugeot applications; the same PSA control units are also fitted to Citroën models. PSA documentation does not characterise the failure mode further.
VAGThe control module's internal test reported the CAN data bus as faulty. 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 (6 interpretations). The control module detected a fault associated with the Anti - Theft Device Wrong Security Code 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.
P1648 is a manufacturer-specific code. In this database it is documented for: Chevrolet, Honda, Jeep, PSA, 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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