Hybrid battery pack temperature sensor 3 - signal circuit low input
Honda · hybrid
Data confidence62%
The control module detected a fault associated with the Hybrid battery pack temperature sensor 3 - signal circuit low input 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.
Charge Deviations
Porsche · engine
Data confidence62%
The control module detected a fault associated with the Charge Deviations 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.
DC/DC Converter Temperature Sensor Circuit
Toyota · engine
Data confidence62%
The control module detected improper operation of the DC/DC Converter Temperature circuit. This is the manufacturer-specific definition used by Toyota.
Turbocharger (TC) pressure - control limit exceeded
VAG · engine
Data confidence62%
The control module detected that the monitored Turbocharger (TC) pressure - control limit value exceeded the calibrated threshold. This is the manufacturer-specific definition used by Audi.
Possible causes
Hose connection interchanged/not connected
Applies toAudi
P1557
Charge Pressure Control: Positive Deviation
VAG · engine
Data confidence84%
The control module detected that the actual Charge Pressure Control value stayed above the specified value (positive control deviation). This is the manufacturer-specific definition used by Volkswagen. Volkswagen Group tools also report it as fault code 17965. Documented across Volkswagen Group applications (Audi, SEAT and Škoda included).
Symptoms
Reduced power output
Limp mode
Possible causes
Boost Pressure too High
Hoses/Pipes incorrect connected, disconnected, blocked or leaking
Charger Pressure Control defective
Solenoid Valve for Boost Pressure Control (N75) defective
Recommended checks
Check Hoses/Pipes to/between Components
Check Solenoid Valve for Boost Pressure Control (N75)
Powertrain: engine, transmission and driveline systems.
1
Manufacturer-defined range: the meaning can differ between brands.
557
Specific fault index within the subsystem.
Frequently asked questions about P1557
What does P1557 mean?
Diagnostic Trouble Code (6 interpretations). The control module detected a fault associated with the Hybrid battery pack temperature sensor 3 - signal circuit low input 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.
Is P1557 generic or manufacturer-specific?
P1557 is a manufacturer-specific code. In this database it is documented for: Honda, Lexus, Porsche, Toyota, VAG. The same number can mean something different on other brands.
Can TuningBot remove P1557 at file level?
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.
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Honda
Lexus
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