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 BaseFACTORY OEM SERVICE PROCEDURE
DTC Index
DTC INDEX
| DTC | Description |
|---|---|
| DTC C1101, C1108, C1115 | Wheel Sensor Circuit |
| DTC C1130, C1133, C1136 | Engine System |
| DTC C1110, C1153, C1170 | ABS Actuator and Electric Unit (Control Unit) |
| DTC C1109 | ABS Actuator and Electric Unit (Control Unit) Power Supply and Ground Circuit |
| DTC C1111 | ABS Motor and Motor Relay Circuit |
| DTC C1114, C1120 - 1127, C1147 - C1150 | Solenoid, VDC Change-Over Valve and Actuator Relay Circuit |
| DTC C1142 | Pressure Sensor Circuit |
| DTC C1143 | Steering Angle Sensor Circuit |
| DTC C1116 | Stop Lamp Switch Circuit |
| DTC C1145, C1146 | Yaw Rate/Side G Sensor Circuit |
| DTC C1155 | Brake Fluid Level Switch Circuit |
| DTC C1137 | RAS Control Unit Circuit (With RAS) |
| DTC C1185 | ICC Sensor Integrated Unit Circuit (With ICC) |
| DTC C1156, U1000, U1002, U1100 | CAN Communication Circuit |
Factory Service Tools
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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.
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