Steering Wheel Audio Control Switch Check a

1. AV SWITCH SELF-DIAGNOSIS FUNCTION CHECK 
   1. Start AV switch self-diagnosis function. Refer to "AV SWITCH SELF-DIAGNOSIS FUNCTION  ".
   2. Operate steering wheel audio control switch.

   Does steering wheel audio control switch operate normally?

   1. OK: INSPECTION END.
   2. NG: GO TO 2.
2. CHECK HARNESS 
   1. Turn ignition switch OFF.
   2. Disconnect AV switch connector and spiral cable connector.
   3. Check continuity between spiral cable harness connector terminals and AV switch harness connector terminals.
      SPIRAL CABLE HARNESS AND AV SWITCH TERMINALS CONTINUITY SPECIFICATIONS
      
      

      Terminals				Continuity
      Spiral cable		AV switch
      Connector	Terminal	Connector	Terminal (Wire color)
      M30	32 (G)	M98	13 (G)	Yes
      	31 (B/R)		14 (B/R)
      	24(R/W)		12 (R/W)

   4. Check continuity between AV switch and ground.
   AV SWITCH AND GROUND TERMINALS CONTINUITY SPECIFICATIONS
   
   

   Terminals			Continuity
   AV switch (+)		(-)
   Connector	Terminal (Wire color)
   M98	12 (R/W)	Ground	No
   	13 (G)
   	14 (B/R)

   OK or NG

   1. OK: GO TO 2.
   2. NG: Repair harness.
      Fig 1: Checking Continuity Between AV Switch & Ground

      Courtesy of NISSAN MOTOR CO., U.S.A.
3. SPIRAL CABLE CHECK 

   Check spiral cable harness.

   OK or NG

   1. OK: GO TO 4.
   2. NG: Replace spiral cable. Refer to SPIRAL CABLE .
4. CHECK STEERING WHEEL AUDIO CONTROL SWITCH RESISTANCE 

   Check resistance steering wheel audio control switch terminals.

   RESISTANCE TERMINALS SPECIFICATION CHART
   
   

   Terminal		Signal name	Condition	Resistance (ohm) (Approx.)
   (+)	(-)
   16	17	Seek (down)	Depress (station) down switch.	165
   		Power	Depress power switch.	0
   		Volume (down)	Depress volume down switch.	487
   20	17	Seek (up)	Depress (station) up switch.	165
   		Mode	Depress mode switch.	0
   		Volume (up)	Depress volume up switch.	487

   Fig 2: Checking Resistance Steering Wheel Audio Control Switch Terminals

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

OK or NG

1. OK: Replace AV switch. Refer to REMOVAL AND INSTALLATION FOR AV SWITCH .
2. NG: Replace steering wheel audio control switch. Refer to REMOVAL AND INSTALLATION OF STEERING WHEEL AU . .

Removal and Installation of Display Unit 

Refer to CENTER STACK ASSEMBLY .

Removal and Installation of AV Switch 

Refer to REMOVAL AND INSTALLATION FOR AV SWITCH .