U0101 is a generic powertrain code, which means it has the same definition for the Mazda 3 as it would any other vehicle. It means that your 3’s TCM (Transmission Control Module) can’t communicate with the rest of the vehicle, usually due to a bad wiring harness or an issue with the TCM itself. U0101 … Read more
P219B is a generic OBD2 trouble code. This code indicates that your Mazda 3’s air/fuel ratio is out of balance (too rich or too lean) on the bank 2 side of the engine in question. Your 3 is equipped with oxygen sensors that measure the air-fuel ratio of your engine. It’s these sensors that are … Read more
P219A is a generic OBDII code. The code indicates that your Mazda 3’s air/fuel ratio is out of balance (too rich or too lean). Your 3 is equipped with oxygen sensors that measure the air-fuel ratio of your engine. It’s these sensors that are reporting the problem with the air-fuel ratio. With P219A are … Read more
U0100 is a generic diagnostic trouble code, meaning it has the same definition for any vehicle made in the 1996 model year or newer (including the Mazda 3). This code tells you that communication has been lost between the ECM/PCM (main computer) and a particular control module has been completely lost. When a vehicle has … Read more
P2099 is a generic OBD II code. It has the same meaning for the Mazda 3 as it would any other vehicle. It specifically indicates that your 3 detected that air-fuel mixture reading as the exhaust gas exits the catalytic converter on the bank 2 side of the engine is too rich. (too much fuel … Read more
P2097 is a generic OBD II code, which means that it has the same meaning for the Mazda 3 as it would any other vehicle. It specifically indicates that your 3 detected that air-fuel mixture reading as the exhaust gas exits the catalytic converter is too rich. (too much fuel for the amount of fuel … Read more
P2098 is a generic OBD II code. It specifically indicates that your 3 detected a lean condition after the catalytic converter (too much air for the amount of fuel present). P2098 Definition This particular code is generic, so it has the same meaning for your Mazda 3 as any other vehicle. There are three parts … Read more
U0073 Definition: Control Module Communication Bus”A” Off U0073 is a fairly common trouble code. It is generic, so it has the same meaning for your Mazda 3 as it would any other. This code appears when something has interrupted the communication between two of your 3’s control modules. The most common causes of U0073 are … Read more
P2276 is a general diagnostic trouble code. It means that your Mazda 3’s third (from the exhaust manifold) “bank 2” downstream oxygen sensor (behind the catalytic converter) is continuously sending voltage that indicates a lean air/fuel mixture. Having this code does not necessarily mean that the vehicle is running lean (although it can, but … Read more
P2274 in the Mazda 3 is a general diagnostic trouble code. It means that the “bank 1” oxygen sensor (third oxygen sensor from the exhaust manifold, behind a catalytic converter) is continuously sending voltage that indicates a lean air/fuel mixture. This does not necessarily mean that the vehicle is running lean (although it can, … Read more