Logo

B1212 Engine Trouble Code

B1212 Engine

When you check engine light came on code B1212 the reason should be . However your vehicle's manufacturer may have a different definition for the B1212 OBD-II Diagnostic Body (B) Trouble Code. So you should chech it on our car models.

When the check engine light comes B1212 code on the first you should check is the gas cap. Pull over, retighten it, and take a look at the cap to see if it has any cracks in it. Continue driving and see if the check engine light turns off. Alternately, you can purchase a gas cap for about $3 at an auto parts store. All you need to do is take the old one off and screw on the new one. If you've already made it to the store, you might as well just replace it. While not car-threatening, it's good to take care of this right away to improve gas mileage.

B1212 Code Meaning :

B 1 2 1 2
OBD-II Diagnostic Body (B) Trouble Code For Engine Fuel And Air Metering Ambient Air Temperature Sensor Circuit Low Ignition/Distributor Engine Speed Input Circuit Malfunction Crankshaft Position Sensor A Circuit Low Input

The oxygen (02) sensors on your car measure the oxygen in the exhaust to determine how rich or lean the ratio of fuel and air are in the cylinders. Optimizing this mixture means better fuel economy and fewer exhaust emissions.

B1212 OBD-II Diagnostic Body (B) Trouble Code Description

B1212 engine trouble code is about Crankshaft Position Sensor A Circuit Low Input.

Reason For B1212 Code

The reason of B1212 OBD-II Engine Trouble Code is Ambient Air Temperature Sensor Circuit Low.

B1212 DTCs may also be triggered by faults earlier down the line. For example, a dirty MAF sensor might be causing the car to overcompensate in its fuel-trim adjustments. As a result, oxygen sensors are likely to report fuel mixture problems.