MICROPHONE: Diagnosis Procedure
WARNING: This page is about a different car, the 2009 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK POWER SUPPLY CIRCUIT (MICROPHONE SIDE)
Check voltage between microphone harness connector and ground.
CONNECTOR TERMINAL VALUE CHART(+) (-) Ignition switch position Value (Approx.) Connector Terminal R7 4 Ground ON 5V Courtesy of NISSAN MOTOR CO., U.S.A.
Is proper voltage present?
YES: GO TO 3.
NO: GO TO 2.
- CHECK POWER SUPPLY CIRCUIT (CONTINUITY)
- Turn ignition switch OFF.
- Disconnect Bluetooth control unit and microphone connectors.
- Check continuity between microphone harness connector R7 (A) terminal 4 and Bluetooth control unit harness connector B126 (B) terminal 29.CONNECTOR TERMINAL CONTINUITY CHART
A B Continuity Connector Terminal Connector Terminal R7 4 B126 29 Yes - Check continuity between microphone harness connector R7 (A) terminal 4 and ground.
CONNECTOR TERMINAL CONTINUITY CHARTA - Continuity Connector Terminal R7 4 Ground No Are continuity results as specified?
YES: Replace the Bluetooth control unit. Refer to "REMOVAL AND INSTALLATION ".
NO: Repair harness or connector.
- CHECK GROUND CIRCUIT
- Turn ignition switch OFF.
- Disconnect Bluetooth control unit and microphone connectors.
- Check continuity between Bluetooth control unit harness connector B126 (A) terminal 8 and microphone harness connector R7 (B) terminal 2.
CONNECTOR TERMINAL CONTINUITY CHARTA B Continuity Connector Terminal Connector Terminal B126 8 R7 2 Yes Fig 3: Checking Continuity Between Bluetooth Control Unit Connector B126 Terminal 8 And Microphone Connector R7 Terminal 2Courtesy of NISSAN MOTOR CO., U.S.A.
Is continuity present?
YES: Inspection End.
NO: Repair harness or connector.