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.
2009 Infiniti M45 xFACTORY OEM SERVICE PROCEDURE
DTC Index
DTC INDEX
| DTC | Description |
|---|---|
| DTC C1900, C1901, C1905, C1906, C1907, C1908, C1909, C1922, C1927, C1928 | Inspection 1 RAS Control Unit Malfunction |
| DTC C1911, C1912 | Inspection 2 Motor Power Supply System |
| DTC C1902, C1903, C1904, C1910, C1913 | Inspection 3 RAS Motor Output Malfunction |
| DTC C1919 | Inspection 4 Vehicle Speed Signal |
| DTC C1920, C1923 - C1926 | Inspection 5 Steering Angle Signal Malfunction |
| DTC C1914 - C1918 | Inspection 6 Rear Main Signal and Rear Sub Signal Malfunction |
| DTC C1929 | Inspection 7 VDC Malfunction |
| DTC C1921 | Inspection 8 Engine Speed Signal Malfunction |
| DTC U1000, U1010 | Inspection 9 CAN Communication System Malfunction |
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.