Mazda 3 Transmission Overheating: Causes and Diagnosis

Transmissions are an integral part of any vehicle, and overheating can lead to costly repairs or even permanent damage. Mazda 3 owners should be aware of the common symptoms and causes of transmission overheating to prevent potential issues and ensure their trucks remain strong and reliable. In this article, we will discuss the common causes … Read more

Mazda 3: SRS On Diagnosis

  When you start your Mazda 3, the OBD-II system runs a self diagnostic check on all major systems.  If any of these checks fail, you will see a diagnostic warning light on the dash for the corresponding system.  When the SRS system fails this check, you’ll see the SRS light.  SRS stands for supplemental … Read more

Mazda 3 Radiator Leak: Symptoms, Causes, Fix

Radiator leaks in a Mazda 3 can cause the vehicle to overheat, potentially leading to costly long-term engine damage, such as a bad head gasket or a cracked head. If the leak is not addressed promptly, it can result in expensive repairs and can even cause permanent damage to the engine. Identifying the symptoms of … Read more

Mazda 3 Leaking Heater Core Diagnosis

One of the most common problems that can happen to a vehicle is a heater core leak.  If your Mazda 3 has a leaking heater core, it is not a breakdown risk.  Although, it is necessary to make sure that the lost coolant is replaced.  It can cause damage to the vehicle in other ways, … Read more

Mazda 3 Bad Starter → Symptoms & Diagnosis

  One of the most common problems that can occur in the life of a vehicle is a bad starter, that includes the Mazda 3.  It is important to determine whether or not it’s a bad starter that is keeping the vehicle from turning over. If your 3 is not starting, don’t assume right away … Read more

Mazda 3: P0720 → OSS Circuit → Malfunction

P0720 is a generic OBD II trouble code, which means that it has the same meaning for your Mazda 3 as it would any other vehicle.  It indicates that your 3’s OSS (Output Shaft Speed Sensor) is reporting a malfunction. It’s typically caused by a bad OSS, or a wiring problem. The OSS works by … Read more

Mazda 3 P0520: Oil Pressure Switch/Sensor → Circuit

  P0520 is a common OBD2 trouble code.  It’s generic, which means that it has the same meaning for the Mazda 3 as it would any other vehicle.  P0520 indicates that the oil pressure sensor is operating outside of its normal “range”.  It is typically caused by a bad oil pressure sensor switch or a … Read more

Mazda 3 P0108:  MAP Barometric Sensor → High Input 

  P0108 is a generic OBD-II trouble code.  It indicates your Mazda 3’s MAP (manifold absolute pressure) sensor’s voltage reading is outside of the normal operating range.  The voltage is too high.  It’s most commonly caused by a bad MAP sensor, wiring issue, or vacuum leak. The MAP sensor measures the air pressure coming into … Read more

Mazda 3 P0443 Code: Meaning, Causes, How To Fix

P0443 is a very common OBD2 code.  It’s generic, meaning it has the same definition for the Mazda 3 as any other vehicle.   If your 3 has this code, it indicates the EVAP purge control valve circuit is malfunctioning. This is typically caused by a short in the wiring to or from the purge … Read more

Mazda 3 P0521: Oil Pressure Sensor Switch → Performance/Range

P0521 is an OBD2 diagnostic code that is triggered when your Mazda 3 detects that the value being sent from the oil pressure sensor is out of its normal operating range. It is typically caused by a bad oil pressure sensor or an issue with the oil system, and should be diagnosed and fixed right … Read more