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.
2024 Infiniti QX55 EssentialFACTORY OEM SERVICE PROCEDURE
Chassis Control
DTC Index
| DTC | Description |
|---|---|
| C1B92-82 | BRAKE CONTROL SYSTEM |
| C1B96-82 | ADAS SYSTEM |
| C1B98-64 | ADAS SYSTEM |
| C1B99-52 | CONTROL MODULE |
| C1BA6-82 | AV SYSTEM |
| C1BA8-61 | CONTROL MODULE |
| C1BB2-44 | CONTROL MODULE |
| C1BB3-44 | CONTROL MODULE |
| C1BB4-49 | CONTROL MODULE |
| C1BB5-1C | IGNITION POWER SUPPLY |
| C1BB6-17 | IGNITION POWER SUPPLY |
| C1BB7-49 | CONTROL MODULE |
| C1BB8-49 | CONTROL MODULE |
| C1BB9-49 | CONTROL MODULE |
| C1BBA-47 | CONTROL MODULE |
| C1BBB-49 | CONTROL MODULE |
| C1BBC-44 | CONTROL MODULE |
| C1BBD-45 | VARIANT CODING |
| U1000-01 | CAN COMM CIRCUIT |
| U1010-49 | CONTROL MODULE (CAN) |
| U1A35-83 | BRAKE CONTROL COMMUNICATION |
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.