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.
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HOMESERVICE MANUALSINFINITI2019Q70 3.7 LUXE, AWDREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSDTC INDEXAUDIO, VISUAL, NAVIGATION SYSTEM DTCS
2019 Infiniti Q70 3.7 Luxe, AWD
Audio, Visual, Navigation System DTCS
2019 Infiniti Q70 3.7 Luxe, AWDSECTION Audio, Visual, Navigation System DTCS
DTC INDEX
| DTC | Description |
|---|---|
| B1F01 | ENGINE SPEED SIGNAL |
| B1F0B, B1F0C, B1F0D, B1F0E | ANC MIC1 CIRCUIT |
| B1F10, B1F11, B1F12, B1F13 | ANC MIC2 CIRCUIT |
| U1000 | CAN COMM CIRCUIT |
| U1010 | CONTROL UNIT (CAN) |
| U121F | DISPLAY CONTROL UNIT |
| U1223 | CONFIG UNFINISHED |
| 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 |
| U125B | AVM CONN |
| U125D | NAVI CONN |
| U1266 | TCU |
| U12B8 | REAR CAMERA CONN |
| U12BA | MULTIFUNCTION SWITCH CONN |
| U12BE | RADIO ANTENNA CONN |
| U1300 | AV COMM CIRCUIT |
| U1310 | DISPLAY CONTROL UNIT |
| U1601, U1609 | FRONT DOOR WOOFER |
| U1602, U160A | FRONT DOOR SQUAWKER/TWEETER |
| U162A | CENTER SPEAKER |
| U1632, U163A, U163E | SEAT SPEAKER |
| U1708, U1710 | REAR DOOR SPEAKER |
| U1725 | REAR WOOFER |
| U190C | FRONT/REAR MICROPHONE |
RENDER: 1.0x
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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.