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.
2022 Mazda 3 BaseFACTORY OEM SERVICE PROCEDURE
Door-Electrical Supply Unit
DOOR-ELECTRICAL SUPPLY UNIT DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Refer to |
|---|---|
| B1172:11 | (See DTC B1172:11 (BCM) .) |
| B1172:13 | (See DTC B1172:13 (BCM) .) |
| B11F6:09 | (See DTC B11F6:09 (BCM) .) |
| B11F7:09 | (See DTC B11F7:09 (BCM) .) |
| B1207:09 | (See DTC B1207:09 (BCM) .) |
| B1207:86 | (See DTC B1207:86 (BCM) .) |
| B126A:11 | (See DTC B126A:11 (BCM) .) |
| B126A:13 | (See DTC B126A:13 (BCM) .) |
| B12D3:11 | (See DTC B12D3:11 (BCM) .) |
| B13EB:09 | (See DTC B13EB:09 (BCM) .) |
| B13ED:09 | (See DTC B13ED:09 (BCM) .) |
| B13F1:09 | (See DTC B13F1:09 (BCM) .) |
| B13F2:09 | (See DTC B13F2:09 (BCM) .) |
| B14E3:09 | (See DTC B14E3:09 (BCM) .) |
| B14E4:09 | (See DTC B14E4:09 (BCM) .) |
| B14E9:09 | (See DTC B14E9:09 (BCM) .) |
| B1514:09 | (See DTC B1514:09 (BCM) .) |
| B1514:86 | (See DTC B1514:86 (BCM) .) |
| B1515:09 | (See DTC B1515:09 (BCM) .) |
| B2000:55 | (See DTC B2000:55 (BCM) .) |
| B2000:56 | (See DTC B2000:56 (BCM) .) |
| B2000:62 | (See DTC B2000:62 (BCM) .) |
| B2001:55 | (See DTC B2001:55 (BCM) .) |
| B2001:56 | (See DTC B2001:56 (BCM) .) |
| B2001:62 | (See DTC B2001:62 (BCM) .) |
| U2618:14 | (See DTC U2618:14 (BCM) .) |
| U2618:17 | (See DTC U2618:17 (BCM) .) |
| U2619:14 | (See DTC U2619:14 (BCM) .) |
| U261A:14 | (See DTC U261A:14 (BCM) .) |
| U2620:14 | (See DTC U2620:14 (BCM) .) |
| U2620:17 | (See DTC U2620:17 (BCM) .) |
| U2621:14 | (See DTC U2621:14 (BCM) .) |
| U2622:14 | (See DTC U2622:14 (BCM) .) |
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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