TuningBot DTC Database · v4.37.14
3 manufacturer-specific interpretations across 3 manufacturers in the TuningBot DTC database.
ChevroletThe control module detected a fault associated with the TFP Valve Position Switch Reverse With Drive Ratio 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.
Mercedes-BenzThe control module detected improper operation of the Reverse lamps - open/short circuit. This is the manufacturer-specific definition used by Mercedes-Benz.
NissanThe control module detected a fault associated with the Actuator Motor circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Nissan.
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Diagnostic Trouble Code (3 interpretations). The control module detected a fault associated with the TFP Valve Position Switch Reverse With Drive Ratio 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.
P1817 is a manufacturer-specific code. In this database it is documented for: Chevrolet, Mercedes-Benz, Nissan. 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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