Mazda 3 BM 2013–2019 Full Wiring Diagram
Detailed wiring diagram for Mazda 3 BM 2013-2019. Contains complete electrical diagrams of all vehicle systems, including engine, transmission, lighting, multimedia, safety systems and climate control. Ideal for troubleshooting, repair and adjustment of electrical components. A convenient guide for car enthusiasts and professional technicians.
Engine: Skyactiv-G 2.0-2.5
| Mazda 3 (BM-BN) 2018 Electrical Wiring Diagram | Download |
| Mazda 3 BM 2013–2019 Charging System | Download |
| Mazda 3 BM 2013–2019 Engine Control System | Download |
| Mazda 3 BM 2013–2019 Lighting System | Download |
| Mazda 3 BM 2013–2019 Power System, Fuse and Relay Block | Download |
| Mazda 3 BM 2013–2019 Control System | Download |
Mazda 3 BM 2013–2019 Typical problems with wiring, sensors
1. General wiring problems
Blown fuses: Usually caused by overload or short circuit in the wiring.
Oxidized contacts: Can occur at the joints, especially in high humidity conditions.
Broken wires: Most often at bends, such as near the doors or trunk lid.
2. Engine sensor problems
Oxygen sensor (lambda probe): Wear or contamination causes errors and increased fuel consumption.
Mass air flow sensor (MAF): Can become contaminated, causing rough engine operation and loss of power.
Crankshaft sensor: Failure causes problems starting the engine.
3. Safety system sensor problems
ABS sensors: Clogged or damaged sensor can disable the anti-lock system.
Tire pressure sensors (TPMS): Sensor failure due to dead batteries or broken wiring.
4. Climate control system problems
Evaporator temperature sensor: Incorrect data may cause the air conditioner to stop cooling effectively.
Outside temperature sensor: May display the temperature incorrectly, affecting the operation of the climate control.
5. Electronic systems and multimedia
Multimedia screen: Overheating or wiring failures cause the display to freeze or turn off.
Rear view camera: May stop working due to damaged wiring or oxidation of the connectors.
Recommendations for troubleshooting:
- Regularly check the condition of the wiring, especially in the bends.
- Clean the contacts and use protective compounds against corrosion.
- If errors appear on the dashboard, diagnose the system using an OBD-II scanner.
- When replacing sensors, use original or high-quality analogs.
If you need additional information on diagnostics or repair, please contact us!