P1055 Diagnostic Trouble Code (8 interpretations)

The control module detected that the signal in the O2 Sensor Heater circuit stayed above the expected operating range. This is the manufacturer-specific definition used by BMW.

The control module detected a fault associated with the Idle RPM Low circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Dodge.

The control module detected a fault associated with the Valvetronics Actuator Motor Power Supply circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by MINI.

The control module detected a short circuit to battery voltage in the Variable valve lift motor supply fault circuit. Documented for the Bosch MED 17.4.x engine ECU (EP6 THP family) on Peugeot applications; the same PSA control units are also fitted to Citroën models.

The control module detected the fault condition "High failure" for the Fault in the variable valve lift system. Documented for the Bosch MEV17.4 engine ECU (EP6 1.6 VTi) on Peugeot applications; the same PSA control units are also fitted to Citroën models.

The control module detected an interruption (open circuit) in the Variable valve gear solenoid valve command circuit. Documented for the Magneti Marelli MM6KP engine ECU (EW7A/EW10A) on Peugeot applications; the same PSA control units are also fitted to Citroën models.

The control module detected a short circuit to battery voltage in the Bank 1 Camshaft Adjustment circuit. This is the manufacturer-specific definition used by Audi.

The control module detected a short circuit to battery voltage in the Bank 1 Camshaft Adjustment circuit. This is the manufacturer-specific definition used by Volkswagen.