Mazda 121 C3989 Engine Trouble Code

When the check engine light comes Mazda 121 C3989 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.

Mazda 121 C3989 Code Meaning :

When you check Mazda 121 car engine light came on code C3989 the reason should be . However manufacturer may have a different definition for the C3989 OBD-II Diagnostic Chassis (C) Trouble Code. So you should chech it on our car models.

C3989 OBD-II Diagnostic Chassis (C) Trouble Code Description

C3989 engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.

Reason For C3989 Code

The reason of C3989 OBD-II Engine Trouble Code is Engine Oil Temperature Sensor Malfunction.

C3989 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.

C3988 Previous Engine Trouble Code For Mazda 121

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