P1771 Diagnostic Trouble Code (6 interpretations)

The control module detected an interruption (open circuit) in the Throttle Position circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Ford.

The control module detected a fault associated with the EMC Thermal Protection - Shutdown circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Hyundai.

The control module detected an interruption (open circuit) in the AT - throttle position (TP) circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Mazda.

The stored code identifies a fault of the Exit from the "Reduction of drag" in mode D operating mode fault (neutral). Documented for the AM6/AT6 automatic gearbox ECU on Peugeot applications; the same PSA control units are also fitted to Citroën models. PSA documentation does not characterise the failure mode further.

The control module determined that the Load did not change state as commanded and appears stuck. This is the manufacturer-specific definition used by Volkswagen.

The control module detected that the Throttle position (TP) signal stayed above the expected range. This is the manufacturer-specific definition used by Volvo.