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.
2012 Infiniti FX50FACTORY OEM SERVICE PROCEDURE
With Navigation
AUDIO, VISUAL & NAVIGATION SYSTEM (NAVIGATION) DIAGNOSTIC TROUBLE CODE (DTC) INDEX
| DTC | Description |
|---|---|
| DTC B2700 | CORNER SENSOR [FL] |
| DTC B2701 | SENSOR HARNESS OPEN [CR-FL] |
| DTC B2702 | CORNER SENSOR [FR] |
| DTC B2703 | SENSOR HARNESS OPEN [CR-FR] |
| DTC B2704 | CORNER SENSOR [RL] |
| DTC B2705 | SENSOR HARNESS OPEN [CR-RL] |
| DTC B2706 | CORNER SENSOR [RR] |
| DTC B2707 | SENSOR HARNESS OPEN [CR-RR] |
| DTC U1000 | CAN COMM CIRCUIT |
| DTC U1010 | CONTROL UNIT (CAN) |
| DTC U1200 | AV CONTROL UNIT |
| DTC U1201 | AV CONTROL UNIT |
| DTC U1202 | AV CONTROL UNIT |
| DTC U1204 | AV CONTROL UNIT |
| DTC U1205 | AV CONTROL UNIT |
| DTC U1206 | AV CONTROL UNIT |
| DTC U1207 | AV CONTROL UNIT |
| DTC U1216 | AV CONTROL UNIT |
| DTC U1217 | AV CONTROL UNIT |
| DTC U1218 | AV CONTROL UNIT |
| DTC U1219 | AV CONTROL UNIT |
| DTC U121A | AV CONTROL UNIT |
| DTC U121B | AV CONTROL UNIT |
| DTC U121C | AV CONTROL UNIT |
| DTC U121D | AV CONTROL UNIT |
| DTC U121E | AV CONTROL UNIT |
| DTC U1225 | AV CONTROL UNIT |
| DTC U1227 | AV CONTROL UNIT |
| DTC U1228 | AV CONTROL UNIT |
| DTC U1229 | AV CONTROL UNIT |
| DTC U122A | AV CONTROL UNIT |
| DTC U122E | AV CONTROL UNIT |
| DTC U1232 | STEERING ANGLE SENSOR |
| DTC U1243 | FRONT DISPLAY UNIT |
| DTC U1244 | GPS ANTENNA |
| DTC U1258 | SATELLITE RADIO ANTENNA |
| DTC U1263 | USB |
| DTC U1300 | AV COMM CIRCUIT |
| DTC U1310 | AV CONTROL UNIT |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.