Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2002 Mazda B4000 Base, AutomaticFACTORY OEM SERVICE PROCEDURE
System Tests: Notes
SYMPTOM INDEX
| Symptom | Test |
|---|---|
| The Battery Is Discharged Or Battery Voltage Is Low | A |
| Charging System Warning Indicator ON With Engine Running (Charging System Voltage Does Not Increase) | B |
| Charging System Overcharges (Battery Voltage Greater Than 15.5 Volts) | C |
| Charging System Warning Indicator ON With Engine Running & Battery Voltage Increases | D |
| Charging System Warning Indicator OFF With Ignition Switch In RUN Position & Engine OFF. | E |
| Charging System Warning Indicator Flickers | F |
| Generator Is Noisy | G |
| Radio Interference | H |
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.