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.

2003 Infiniti FX45FACTORY OEM SERVICE PROCEDURE

CAN Communication Inspection Using CONSULT-II (Self-Diagnosis)

CHECK SELF-DIAGNOSTIC RESULT
CAUTION: 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.
1. Connect to CONSULT-II, and select "BCM" on "SELECT SYSTEM" screen.
2. Select "BCM control unit" on "SELECT WORK ITEM" screen, and select "SELF-DIAG RESULTS".
3. Check display content in self-diagnostic results.
  
  Fig 1: Consult-II Display Code Reference Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
Contents displayed

No malfunction >> INSPECTION END

Malfunction in CAN communication system >> GO TO 2.
SYMPTOM CHECK
1. Select "CAN diagnosis support monitor" in data monitor.
2. Select "START" and check display content.
  
  Fig 2: Self Diagnostics Result Reference
  Courtesy of NISSAN MOTOR CO., U.S.A.

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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.