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.
2007 Infiniti M35 BaseFACTORY OEM SERVICE PROCEDURE
LAN System DTCS
LAN SYSTEM DIAGNOSTIC TROUBLE CODES (DTC) IDENTIFICATION
| DTC | Self-diagnosis item (CONSULT-II indication) | DTC detection condition | Inspection |
|---|---|---|---|
| U1000 | CAN COMM CIRCUIT | When ECM is not transmitting or receiving CAN communication signal of OBD (emission-related diagnosis) for 2 seconds or more. | Refer to "TROUBLE DIAGNOSIS ". |
| When a control unit (except for ECM) is not transmitting or receiving CAN communication signal for 2 seconds or more. | |||
| U1001 | CAN COMM CIRCUIT | When ECM is not transmitting or receiving CAN communication signal other than OBD (emission-related diagnosis) for 2 seconds or more. | |
| U1002 | SYSTEM COMM | When a control unit is not transmitting or receiving CAN communication signal for 2 seconds or less. | Start the inspection. Refer to the applicable section of the indicated control unit. |
| U1010 | CONTROL UNIT [CAN] | When an error is detected during the initial diagnosis for CAN controller of each control unit. | Replace the control unit indicating "U1010". |
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.