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.
2009 Mazda B2300 AutomaticFACTORY OEM SERVICE PROCEDURE
Window/Mirror DTCS
WINDOW/MIRROR DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Source | Action |
|---|---|---|---|
| B1302 | Accessory Delay Relay Coil Circuit Failure | SJB | See PINPOINT TEST 4: THE DELAYED ACCESSORY RELAY IS INOPERATIVE/DOES NOT OPERATE CORRECTLY . |
| B1304 | Accessory Delay Relay Coil Circuit Short to Battery | SJB | See PINPOINT TEST 5: THE DELAYED ACCESSORY RELAY DOES NOT TURN OFF/ALL WINDOWS OPERATE WITH THE IGNITION IN THE OFF POSITION . |
| B1317 | Battery Voltage High | SJB | See CHARGING SYSTEM INSPECTION AND VERIFICATION . |
| B1318 | Battery Voltage Low | SJB | See CHARGING SYSTEM INSPECTION AND VERIFICATION . |
| B1342 | ECU is Defective | SJB | CLEAR the DTCs. REPEAT the self-test. If DTC B1342 is retrieved again, INSTALL a new SJB. See SMART JUNCTION BOX (SJB) . TEST the system for normal operation. |
Factory Service Tools
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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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