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.
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HOMESERVICE MANUALSINFINITI2009M35X AWD V6-3.5L (VQ35HR)REPAIR AND DIAGNOSISACCESSORIES AND OPTIONAL EQUIPMENTENTERTAINMENT SYSTEMSTESTING AND INSPECTIONCOMPONENT TESTS AND GENERAL DIAGNOSTICSRGB (B BLUE) SIGNAL CIRCUIT (AV CONTROL UNIT TO FRONT DISPLAY UNIT)WITHOUT MOBILE ENTERTAINMENT SYSTEMWITH NAVIGATIONDIAGNOSIS PROCEDURE
2009 Infiniti M35x AWD V6-3.5L (VQ35HR)
Diagnosis Procedure
2009 Infiniti M35x AWD V6-3.5L (VQ35HR)SECTION Diagnosis Procedure
RGB (B: BLUE) SIGNAL CIRCUIT (AV CONTROL UNIT TO FRONT DISPLAY UNIT)
WITH NAVIGATION : Diagnosis Procedure
1.CHECK CONTINUITY RGB (B: BLUE) SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front display unit connector and AV control unit connector.
3. Check continuity between front display unit harness connector terminal 18 and AV control unit harness connector terminal 95.
18 - 95 : Continuity should exist.
4. Check continuity between front display unit harness connector terminal 18 and ground.
18 - Ground : Continuity should not exist.
Is the inspection result normal?
YES - GO TO 2.
NO - Repair harness or connector.
2.CHECK RGB (B: BLUE) SIGNAL
1. Connect front display unit connector and AV control unit connector.
2. Turn ignition switch ON.
3. Check signal between front display unit harness connector terminal 18 and ground.
Is the inspection result normal?
YES - Replace front display unit.
NO - Replace AV control unit.
RENDER: 1.0x
NO RELATED
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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.