P0AAC Bmw 1600 OBD Code

OBD/2 P0AAC error code description and symptoms.

HO2S Sensor Circuit Malfunction (HO2S-11) During testing the HO2S Heaters are checked for opens/shorts and excessive current draw.
The test fails when current draw exceeds a calibrated limit and/or an open or short is detected. Short to VPWR in harness or HO2S. Water in harness connector. Open VPWR circuit. Open GND circuit. Low battery voltage. Corrosion or poor mating terminals and wiring Damaged HO2S heater. Damaged PCM.

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 Bmw 1600 Error Code Repair Process :

For wiper rear motor speed sense circuit failure check engine light is perhaps the most troubling of lights because it could mean so many different things, from you didn't screw the gas cap on tightly enough to look out for pistons flying through the hood and into the stratosphere. The easiest way to find out what this light is telling you is to hook your vehicle up to a scan tool. P0AAC error code diagnostic tool looks a little like an oversized calculator and plugs into a communication port inside the car. After you instruct it to perform the scan, it speaks wiper rear motor speed sense circuit failure with your car's computers to find out exactly what's prompting the light to turn on.

Common Causes of Bmw 1600 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 ;

Exhaust tube
Faulty Variable Camshaft Timing (VCT) position solenoid
Exhaust gas leaks
Damaged VCT phaser

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 Bmw 1600 OBD Code

P0AAC Bmw 1600 Error Code Repair Process :

Common Causes of Bmw 1600 P0AAC OBD2 Code

P0AAC code for other Bmw cars