Steering Wheel Audio Control Switch Does Not Operate

WARNING: This page is about a different car, the 2009 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.

CHECK STEERING WHEEL AUDIO CONTROL SWITCH
Check steering wheel audio control switch. Refer to "STEERING SWITCH CHECK (WITH BLUETOOTH) ".

OK or NG

OK: GO TO 2.

NG: Replace steering wheel audio control switch. "REMOVAL AND INSTALLATION ".
CHECK AUDIO UNIT
1. Turn ignition switch ON.
2. Check voltage between audio unit harness connector M43 terminals 6, 16 and ground.
  6 - Ground : Approx. 5V
  
  16 - Ground : Approx. 5V
Fig 1: Checking Voltage Between Audio Unit Connector M43 Terminals 6, 16 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: Replace audio unit. Refer to "REMOVAL AND INSTALLATION ".

NG: GO TO 3.
CHECK BLUETOOTH CONTROL UNIT
Check voltage between Bluetooth control unit harness connector B15 terminals 17, 18 and ground.

17 - Ground : Approx. 5V

18 - Ground : Approx. 5V

Fig 2: Checking Voltage Between Bluetooth Control Unit Connector B15 Terminals 17, 18 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: Repair or replace harness.

NG: Replace Bluetooth control unit. "REMOVAL AND INSTALLATION ".