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
Steering Control System DTCS
DTC INDEX
| DTC | Description |
|---|---|
| B210A | CONTROL UNIT POWER SUPPLY |
| B210B | CONTROL UNIT POWER SUPPLY |
| B210D | CONTROL UNIT POWER SUPPLY |
| B210E | CONTROL UNIT POWER SUPPLY |
| C1592 | EPS MOTOR |
| C1593 | TORQUE SENSOR |
| P0635 | CONTROL UNIT |
| P1644 | CONTROL UNIT |
| U0001 | CAN COMMUNICATION |
| U0100 | ENGINE SYSTEM |
| U0122 | ELECTRIC STABILITY PROGRAM (ESP) SYSTEM |
| U0155 | COMBINATION METER SYSTEM |
| U0159 | ELECTRIC PARKING BRAKE SYSTEM |
| U0168 | ELECTRIC IGNITION LOCK SYSTEM |
| U0212 | STEERING COLUMN CONTROL MODULE |
| U0401 | ENGINE SYSTEM |
| U0416 | ELECTRIC STABILITY PROGRAM (ESP) SYSTEM |
| U0423 | COMBINATION METER SYSTEM |
| U0427 | ELECTRIC IGNITION LOCK SYSTEM |
| U0429 | STEERING COLUMN CONTROL MODULE |
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.