TuningBot DTC Database · v4.37.15
8 manufacturer-specific interpretations across 8 manufacturers in the TuningBot DTC database.
BMWThe control module detected a fault associated with the WT limp home mode, bank 1 - full stroke position not reached circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by BMW.
ChevroletThe control module detected that the signal in the Brake Booster Vacuum circuit stayed below the expected operating range. This is the manufacturer-specific definition used by Chevrolet.
ChryslerThe control module detected that the signal in the BBV circuit stayed below the expected operating range. This is the manufacturer-specific definition used by Chrysler.
FordThe control module detected a fault associated with the ETC Power Less Than Demand 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.
LexusThe control module detected improper operation of the Brake system. This is the manufacturer-specific definition used by Lexus.
SubaruThe control module detected that the Immobilizer system state or value did not match what was expected. This is the manufacturer-specific definition used by Subaru.
Incorrect key has been used
ToyotaThe control module detected improper operation of the Brake system. This is the manufacturer-specific definition used by Toyota.
VAGThe control module detected improper operation of the Right Engine Mount Solenoid Valve Electrical Fault In circuit. This is the manufacturer-specific definition used by Volkswagen.
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Diagnostic Trouble Code (8 interpretations). The control module detected a fault associated with the WT limp home mode, bank 1 - full stroke position not reached circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by BMW.
P1578 is a manufacturer-specific code. In this database it is documented for: BMW, Chevrolet, Chrysler, Ford, Lexus, Subaru, Toyota, 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: Immobilizer Systems and ECU Pairing
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