P1156 Code défaut de diagnostic (6 interprétations)

The control module detected a fault associated with the HO2S Rich Average Bank 2 Sensor 1 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.

The control module detected improper operation of the Fuel Selector Switch circuit. This is the manufacturer-specific definition used by Ford.

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

The stored code identifies a fault of the Motorised throttle signal 2. Documented for the Magneti Marelli MM6KP engine ECU (EW7A/EW10A) 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 detected an interruption (open circuit) in the Manifold absolute pressure (MAP) circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Audi.

The control module detected an interruption (open circuit) in the Manifold absolute pressure (MAP) circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Volkswagen.