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.
2008 Infiniti M45 BaseFACTORY OEM SERVICE PROCEDURE
Steering Control System DTCS
STEERING CONTROL SYSTEM DIAGNOSTIC TROUBLE CODES (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| DTC C1900, C1901, C1905 | C1909, C1922, C1927, C1928: Inspection 1 - RAS Control Unit Malfunction |
| DTC C1911, C1912 | Inspection 2 - Motor Power Supply System |
| DTC C1902 | C1904, C1910, C1913: Inspection 3 - RAS Motor Output Malfunction |
| DTC C1919 | Inspection 4 - Vehicle Speed Signal |
| DTC C1920, C1923, C1924, 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
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.