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 - WITHOUT NAVIGATION SYSTEM ".
- CHECK HARNESS BETWEEN BLUETOOTH CONTROL UNIT AND MICROPHONE
- Turn ignition switch OFF.
- Disconnect Bluetooth control unit connector and microphone connector.
- Check continuity between Bluetooth control unit harness connector B124 (A) and microphone harness connector R8 (B).
A B Continuity Connector Terminal Connector Terminal B124 7 R8 1 Yes 8 2 29 4 - Check continuity between Bluetooth control unit harness connector B124 (A) and ground.
A - Continuity Connector Terminal B124 7 Ground No 8 29
Fig 1: Checking Continuity Between Bluetooth Control Unit Connector B124 Terminals And Microphone Connector R8 (B) TerminalsCourtesy of NISSAN NORTH AMERICA, INC.
Are the continuity test results as specified?
YES: GO TO 2
NO: Repair harness or connector.
- CHECK MICROPHONE POWER SUPPLY
- Connect Bluetooth control unit connector and microphone connector.
- Turn ignition switch ON.
- Check voltage between microphone harness connector R8 terminal 4 and ground.
4 - Ground: Approx. 5V
Courtesy of NISSAN NORTH AMERICA, INC.
Is voltage reading approx. 5 volts?
YES: GO TO 3
NO: Replace Bluetooth control unit. Refer to "REMOVAL AND INSTALLATION ".
- CHECK MICROPHONE SIGNAL
Check signal between Bluetooth control unit harness connector B124 terminals 7 and 8.
7 - 8: When giving a voice
Courtesy of NISSAN NORTH AMERICA, INC.
Courtesy of NISSAN NORTH AMERICA, INC.
Are voltage readings as specified?
YES: Replace Bluetooth control unit. Refer to "REMOVAL AND INSTALLATION ".
NO: Replace microphone. Refer to "REMOVAL AND INSTALLATION ".