P1157 Diagnostic Trouble Code (12 interpretations)

The control module detected a fault associated with the HO2S Bank 2 Sensor 2 Lean System Or Low Voltage 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 a fault associated with the HO2S Bank 2 Sensor 2 Lean System Or Low Voltage circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Chrysler.

The control module detected a fault associated with the Lack of O2 Switches Bank 2 Sensor 2 Indicates Lean circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Ford.

The control module detected improper operation of the Heated oxygen sensor (HO2S) - HO2S 1 circuit. This is the manufacturer-specific definition used by Honda.

The control module detected a fault associated with the Heated oxygen sensor (HO2S) 2 - cylinders 4, 5, 6 - mixture lean circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Land Rover.

The control module detected a fault associated with the Heated oxygen sensor (HO2S) 2, bank 2 - lean mixture indicated circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Mazda.

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 MINI.

The control module detected a fault associated with the Engine Compartment Temperature 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.

The control module detected a short circuit to ground in the Motor-driven throttle unit, signal 2 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 fault associated with the Manifold absolute pressure (MAP) sensor - supply voltage circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Audi.

The control module detected a fault associated with the Manifold absolute pressure (MAP) sensor - supply voltage circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Volkswagen.

The control module detected a fault associated with the Heated oxygen sensor (HO2S) 2, bank 2 - lean circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Volvo.