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.
2004 Mazda B4000 Base, StandardFACTORY OEM SERVICE PROCEDURE
Window/Mirror DTCS
WINDOW/MIRROR DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
| B1398 | Power Window One-Touch Window Relay Circuit Failure |
| B1400 | Power Window One-Touch Window Relay Coil Circuit Short to Power |
| B1405 | Left Power Window Down Switch Input Short Circuit to Power |
| B1408 | Left Power Window Up Switch Input Short Circuit to Power |
| B1410 | Left Power Window Motor Circuit Failure |
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.
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