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.
2004 Nissan-Datsun Sentra SE-RFACTORY OEM SERVICE PROCEDURE
CAN Communication Line Check
WARNING: This page is about a different car, the 2004 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK MONITOR DESCRIPTION
- Start display unit self-diagnosis. Refer to "SELF-DIAGNOSIS MODE ".
- Select "CAN DIAG MNTR". Refer to
"CAN DIAG MNTR (CAN DIAG MONITOR)
".CAN COMMUNICATION LINE CHECK CHART
Diagnosis item Data monitor display description Normal condition Error (example) CANCOMM OK NG CAN1 OK UNKWN CAN2 OK UNKWN CAN3 OK UNKWN CAN4 OK UNKWN CAN5 OK UNKWN CAN6 OK UNKWN CAN7 OK UNKWN CAN8 OK UNKWN CAN9 OK UNKWN - Record each item display description (OK/NG/UKNWN) displayed on the following CAN DIAG MONITOR Check Sheet.
CAN DIAG MONITOR Check Sheet
CAN DIAG MONITOR CHECK SHEET CHARTDiagnosis item Screen display Diagnosis item Screen display CANCOMM OK NG CAN5 OK UNKWN CAN1 OK UNKWN CAN6 OK UNKWN CAN2 OK UNKWN CAN7 OK UNKWN CAN3 OK UNKWN CAN8 OK UNKWN CAN4 OK UNKWN CAN9 OK UNKWN
- After filling in CAN DIAG MONITOR Check Sheet, go to "PRECAUTIONS WHEN USING CONSULT-II " .
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.
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