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.
2019 Infiniti QX30 Essential, AWDFACTORY OEM SERVICE PROCEDURE
Audio, Visual, Navigation System DTCS
DTC INDEX
| DTC | Description |
|---|---|
| B1505 | STEERING SWITCH |
| B1F01 | ENGINE SPEED SIGNAL |
| U1000 | CAN COMM CIRCUIT |
| U1010 | CONTROL UNIT (CAN) |
| U121F | DISPLAY CONTROL UNIT |
| U1223 | CONFIG UNFINISH |
| U1231 | BOSE AMP. |
| U1232 | STEERING ANGLE SENSOR |
| U1233 | NAVI CONTROL UNIT |
| U1234 | AV CONTROL UNIT |
| U1240 | SWITCH CONN |
| U1244 | GPS ANTENNA CONN |
| U1249 | AUDIO H/U CONN |
| U124E | AMP CONN |
| U1258 | SATELLITE RADIO ANTENNA |
| U125D | NAVI CONN |
| U1266 | TCU |
| U1267 | CGW CONN |
| U12BA | MULTIFUNCTION SWITCH CONN |
| U12BE | RADIO ANTENNA CONN |
| U1300 | AV COMM CIRCUIT |
| U1310 | DISPLAY CONTROL UNIT |
| U1601 | FRONT DOOR SPEAKER/TWEETER |
| U162A | CENTER SQUAWKER |
| U1708 | REAR DOOR SPEAKER |
| U1752 | REAR PILLAR SQUAWKER |
| U175D | WOOFER |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.