P0AAC Vauxhall Omega OBD Code

OBD/2 P0AAC error code description and symptoms.

Vehicle Speed Sensor (VSS) Intermittent Indicates the powertrain control module (PCM) detected an error in the vehicle speed information. Vehicle speed data is received from either the vehicle speed sensor (VSS), transfer case speed sensor (TCSS), anti-lock brake system (ABS) control module, generic electronic module (GEM), or central timer module (CTM). This DTC is set the same way as P0AAC. However, it is intended to flash the transmission control indicator lamp (TCIL) for first time VSS circuit error/malfunctions. Refer to possible causes for P0AAC

One example of this would be when an automatic vehicle in placed in gear. To prevent the added drag from the torque converter and transmission from reducing the idling speed, the PCM will command the idle control valve to allow more air to enter the engine, while at the same time, adjusting the injector pulse width to inject more fuel to suit the increased amount of air. Note that the idle air control valve is closed by the PCM when the throttle plate is opened to prevent excess air from entering the engine.

P0AAC Vauxhall Omega Error Code Repair Process :

If your wiper rear motor speed sense circuit failure check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system P0AAC and engine control unit are in charge of monitoring a bunch of different wiper rear motor speed sense circuit failure, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Vauxhall Omega P0AAC OBD2 Code

A common cause of code P0AAC is the failure of Wiper Rear Motor Speed Sense Circuit Failure, but there are several other possible causes as well, such as ;

EVAP system hose leaking
Faulty Variable Camshaft Timing (VCT) position solenoid
Faulty select solenoid
Fuel tank leaking

P0AAC is a kind of Powertrain Trouble Code

Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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P0AAC Vauxhall Omega OBD Code

P0AAC Vauxhall Omega Error Code Repair Process :

Common Causes of Vauxhall Omega P0AAC OBD2 Code

P0AAC code for other Vauxhall cars