TuningBot DTC Database · v4.37.14
10 manufacturer-specific interpretations across 9 manufacturers in the TuningBot DTC database.
ChryslerThe control module judged the TCM Internal CAN 2 RAM behaviour implausible for the current operating conditions. This is the manufacturer-specific definition used by Chrysler.
DodgeThe control module judged the TCM Internal CAN 2 RAM behaviour implausible for the current operating conditions. This is the manufacturer-specific definition used by Dodge.
FordThe control module detected a fault associated with the Vehicle ID Block Corrupted or Not Programmed 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.
HondaThe control module detected improper operation of the Motor control module (MCM) circuit. This is the manufacturer-specific definition used by Honda.
HyundaiThe control module detected improper operation of the ECM (Monitoring ADC). This is the manufacturer-specific definition used by Hyundai.
JeepThe control module judged the TCM Internal CAN 2 RAM behaviour implausible for the current operating conditions. This is the manufacturer-specific definition used by Jeep.
MazdaThe control module registered the fault condition described as "Engine control module (ECM) - keep alive test error". This is the manufacturer-specific definition used by Mazda.
PSAThe control module detected an interruption (open circuit) in the Injection system supply relay circuit (Power stage) circuit. Documented for the Bosch EDC16C34 injection ECU (DV6TED4 1.6 HDi) on Peugeot applications; the same PSA control units are also fitted to Citroën models.
VAGThe control module judged the Accelerator pedal position (APP) sensor 1/2 behaviour implausible for the current operating conditions. This is the manufacturer-specific definition used by Audi.
The control module judged the Accelerator Position Sensor 1/2 (G79/G185) 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 18047. Documented across Volkswagen Group applications (Audi, SEAT and Škoda included).
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 judged the TCM Internal CAN 2 RAM behaviour implausible for the current operating conditions. This is the manufacturer-specific definition used by Chrysler.
P1639 is a manufacturer-specific code. In this database it is documented for: Chrysler, Dodge, Ford, Honda, Hyundai, Jeep, Mazda, 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 and, where the ECU needs it, corrects the checksum too. 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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