Willys-overland 685 P121A Engine Trouble Code

When the check engine light comes Willys-overland 685 P121A 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.

Willys-overland 685 P121A Code Meaning :

When you check Willys-overland 685 car engine light came on code P121A the reason should be . However manufacturer may have a different definition for the P121A OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

P121A OBD-II Diagnostic Powertrain (P) Trouble Code Description

P121A engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.

Reason For P121A Code

The reason of P121A OBD-II Engine Trouble Code is Engine Oil Temperature Sensor Malfunction.

P121A code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission.

P1219 Previous Engine Trouble Code For Willys-overland 685

Next Engine Trouble Code For Willys-overland 685 P121B