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 Inspection Using CONSULT-II (Self-Diagnosis)

WARNING: This page is about a different car, the 2005 Nissan Xterra. However, it is still accessible from the selected car via links, so may be relevant.

SELF-DIAGNOSTIC RESULT CHECK

NOTE: If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be detected in self-diagnosis depending on control unit which carry out CAN communication.

Connect CONSULT-II and CONSULT-II CONVERTER, and select "BCM" on "SELECT SYSTEM" screen.
Select "BCM" on "SELECT TEST ITEM" screen, and select "SELF-DIAG RESULTS".

Check display content in self-diagnostic results.

SELF-DIAGNOSTIC RESULTS CHART

CONSULT-II display code	Diagnosis item
U1000	INITIAL DIAG
	TRANSMIT DIAG
	ECM
	IPDM E/R
	METER/M&A
	I-KEY

Contents displayed

No malfunction : Inspection End
Malfunction in CAN communication system : After printing the monitor items, go to "CAN System". Refer to CAN COMMUNICATION SYSTEM DESCRIPTION .

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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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