Diagnosis Procedure

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".

1. CHECK STEERING WHEEL AUDIO CONTROL SWITCH RESISTANCE
   1. Turn ignition switch OFF.
   2. Disconnect steering wheel audio control switch connector M102.
   3. Check resistance between steering switch connector terminals.
      RESISTANCE REFERENCE
      
      

      Terminal		Signal name	Condition	Resistance (Ω) (Approx.)
      16	17	Seek (down)	Depress ↓ switch.	165
      		Volume (down)	Depress VOL down switch.	487
      		Mode (without Bluetooth)	Depress MODE switch.	0
      		Phone/Send (with Bluetooth)	Depress POWER and MODE select switch.
      20	17	Seek (up)	Depress ↑ switch.	165
      		Volume (up)	Depress VOL up switch.	487
      		Power (without Bluetooth)	Depress PWR switch.	0
      		Mode/End (with Bluetooth)	Depress Phone operation switch.

      Fig 1: Checking Resistance Between Steering Switch Connector Terminals

      Courtesy of NISSAN MOTOR CO., U.S.A.

      Do the steering wheel audio control switches check OK? 

      YES: GO TO  2.

      NO: Replace steering wheel audio control switch. Refer to "REMOVAL AND INSTALLATION ".

2. CHECK HARNESS
   1. Disconnect AV control unit connector M160 and spiral cable connector M30.
   2. Check continuity between AV control unit harness connector M160 (A) and spiral cable harness connector M30 (B).
      CONTINUITY CHART
      
      

      A		B		Continuity
      Connector	Terminal	Connector	Terminal
      M160	6	M30	24	Yes
      	15		31
      	16		32

   3. Check continuity between AV control unit connector M160 (A) and ground.
      Fig 2: Checking Continuity Between AV Control Unit Connector M160 And Ground

      Courtesy of NISSAN MOTOR CO., U.S.A.
      CONTINUITY CHART
      
      

      A		-	Continuity
      Connector	Terminal
      M160	6	Ground	No
      	15
      	16

      Are the continuity results as specified? 

      YES: GO TO  3.

      NO: Repair harness.

3. SPIRAL CABLE CHECK
   1. Disconnect spiral cable connector M102.
   2. Check continuity between spiral cable harness connector M30 (A) and M102 (B).
      CONTINUITY CHART
      
      

      A		B		Continuity
      Connector	Terminal	Connector	Terminal
      M30	24	M102	20	Yes
      	31		17
      	32		16

      Fig 3: Checking Continuity Between Spiral Cable Harness Connector M30 And M102

      Courtesy of NISSAN MOTOR CO., U.S.A.

      Does the spiral cable check OK? 

      YES: Inspection End.

      NO: Replace spiral cable. Refer to "REMOVAL AND INSTALLATION ".