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.
2018 Infiniti QX30 BaseFACTORY OEM SERVICE PROCEDURE
Audio, Visual, Navigation System DTCS
AUDIO, VISUAL, NAVIGATION SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| DTC B1505 | STEERING SWITCH |
| DTC B1F01 | ENGINE SPEED SIGNAL |
| DTC U1000 | CAN COMM CIRCUIT |
| DTC U1010 | CONTROL UNIT (CAN) |
| DTC U121F | DISPLAY CONTROL UNIT |
| DTC U1223 | CONFIG UNFINISH |
| DTC U1231 | BOSE AMP. |
| DTC U1232 | STEERING ANGLE SENSOR |
| DTC U1233 | NAVI CONTROL UNIT |
| DTC U1234 | AV CONTROL UNIT |
| DTC U1240 | SWITCH CONN |
| DTC U1244 | GPS ANTENNA CONN |
| DTC U1249 | AUDIO H/U CONN |
| DTC U124E | AMP CONN |
| DTC U1258 | SATELLITE RADIO ANTENNA |
| DTC U125D | NAVI CONN |
| DTC U1266 | TCU |
| DTC U1267 | CGW CONN |
| DTC U12BA | MULTIFUNCTION SWITCH CONN |
| DTC U12BE | RADIO ANTENNA CONN |
| DTC U1300 | AV COMM CIRCUIT |
| DTC U1310 | DISPLAY CONTROL UNIT |
| DTC U1601, | U1603, U1609, U160B FRONT DOOR SPEAKER/TWEETER |
| DTC U162A | CENTER SQUAWKER |
| DTC U1708, | U1710 REAR DOOR SPEAKER |
| DTC U1752, | U175A REAR PILLAR SQUAWKER |
| DTC U175D, | U1765 WOOFER |
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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