MICROPHONE: Diagnosis Procedure
WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
Regarding Wiring Diagram information, refer to "WIRING DIAGRAM - WITH NAVIGATION SYSTEM ".
- CHECK POWER SUPPLY CIRCUIT
Check voltage between microphone harness connector R8 terminal 4 and ground.
(+) (-) Ignition switch position Value (Approx.) Connector Terminal R8 4 Ground ON 5V Courtesy of NISSAN NORTH AMERICA, INC.
Is approximately 5V present?
YES: GO TO 3
NO: GO TO 2
- CHECK POWER SUPPLY CIRCUIT (CONTINUITY)
- Turn ignition switch OFF.
- Disconnect microphone and AV control unit harness connectors.
- Check continuity between microphone harness connector R8 (A) terminal 4 and AV control unit harness connector M48 (B) terminal 73.
A B Continuity Connector Terminal Connector Terminal R8 4 M48 73 Yes - Check continuity between microphone harness connector R8 (A) terminal 4 and ground.
A - Continuity Connector Terminal R8 4 Ground No
Fig 2: Checking Continuity Between Microphone Connector R8 (A) Terminal 4 And AV Control Unit Connector M48 (B) Terminal 73Courtesy of NISSAN NORTH AMERICA, INC.
Are the continuity test results as specified?
YES: Replace the AV control unit. Refer to "REMOVAL AND INSTALLATION ".
NO: Repair harness or connector.
- CHECK GROUND CIRCUIT
- Turn ignition switch OFF.
- Disconnect microphone harness connector R8 and AV control unit harness connector M48.
- Check continuity between microphone harness connector R8 (A) terminal 2 and AV control unit harness connector M48 (B) terminal 74.
A B Continuity Connector Terminal Connector Terminal R8 2 M48 74 Yes
Fig 3: Checking Continuity Between Microphone Connector R8 Terminal 2 And AV Control Unit Connector M48 Terminal 74Courtesy of NISSAN NORTH AMERICA, INC.
Does continuity exist?
YES: Inspection End.
NO: Repair harness or connector.