Steering Wheel Audio Control Switch Does Not Operate

WARNING: This page is about a different car, the 2007 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. "STEERING WHEEL AUDIO CONTROL SWITCHES ".
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
OK or NG

OK: Replace audio unit. Refer to "AUDIO UNIT ".

NG: GO TO 3.

Fig 1: Checking Voltage Between Audio Unit Harness Connector M43 Terminals 6, 16 And Ground
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

OK or NG

OK: Repair or replace harness.

NG: Replace Bluetooth control unit. "BLUETOOTH CONTROL UNIT ".

Fig 2: Checking Voltage Between Bluetooth Control Unit Harness Connector B15 Terminals 17, 18 And Ground