B3212 Trouble Code

View B3212 obd/2 error code description and symptoms. B3212 engine photo

The Throttle Position sensor signals the Engine Control Module as to the current position of the engine throttle valve.
The current throttle valve opening is based on the driver's input from the gas pedal. The ECM uses the information from this sensor to help calculate fuel delivery and spark timing.

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.

B3212 Error Code Repair Process :

For fuel pump secondary circuit malfunction 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. B3212 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 fuel pump secondary circuit malfunction with your car's computers to find out exactly what's prompting the light to turn on.

B3212 is a kind of Body Trouble Code

Auto body problems aren't always easy to spot. Diagnosing auto body problems sometimes requires a little know-how. In this section you'll find articles dedicated to teaching you how to diagnose auto body problems.

Common Causes of B3212

A common cause of code B3212 is the failure of Fuel Pump Secondary Circuit Malfunction, but there are several other possible causes as well, such as ;

Damaged ECM
Faulty Mass Air Flow (MAF) sensor
Air fuel ratio (A/F) Sensor 1 Bank 1 harness is open or shorted
Faulty variable valve timing (VVT)

B3212 code for all cars

You can view according B3212 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+B3212 Jeep Grand Wagoneer

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

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