Steering Switch Does Not operate

1. Carry out the self-diagnosis mode in the self-diagnosis function.
2. Push steering switch.

   Beep sound should operate. 

OK or NG 

OK >> GO TO 2.

NO >> GO TO  3.

1. Carry out the self-diagnosis mode in the self-diagnosis function. Refer to "SELF-DIAGNOSIS MODE " (with navigation system) or refer to "SELF-DIAGNOSIS MODE ".

   Dose self-diagnosis start? 

   YES >> With self-diagnosis results, check the malfunction part.

   NO >>

   • Check multifunction switch of power supply and ground circuit check. Refer to "POWER SUPPLY AND GROUND CIRCUIT INSPECTION FOR MULTIFUNCTION SWITCH ". "INSPECTION OF MULTIFUNCTION SWITCH FOR POWER SUPPLY AND GROUND CIRCUIT ".
   • Check harness between multifunction switch and AV and NAVI control unit or AV control unit.

1. Turn the ignition switch OFF.
2. Disconnect steering switch connector and multifunction switch connector.
3. Check the following.
   • Continuity between steering switch harness connector M444 terminal 2 (G) and multifunction switch harness connector M83 terminal 7 (GY/L).
   • Continuity between steering switch harness connector M444 terminal 2 (G) and ground.
Fig 1: Checking Steering Switch Circuit
Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 2: Identifying Terminal Continuity Specifications
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

OK >> GO TO 4.

NG >> Check the following.

• Harness between for open or short steering switch and spiral cable.
• Connector housing terminal for disconnection and looseness.

1. Check horn operation.

   Horn should operate. 

   OK or NG 

   OK >> GO TO 5.

   NG >> Check horn system.

2. POWER SUPPLY CIRCUIT CHECK 
   1. Connect steering switch connector.
   2. Turn the ignition switch ON.
   3. Check harness between steering switch harness connector M444 terminal 1(R) and ground.
      1. Battery voltage should exist.
   Fig 3: Checking Harness Between Steering Switch Harness Connector M444 & Ground
   Courtesy of NISSAN MOTOR CO., U.S.A.

   OK or NG 

   OK >> GO TO 6

   NG >> Check harness for open or short between steering switch and horn relay [located in fuse, fusible link and relay block (J/B)]

1. Disconnect steering switch connector.
2. Check harness between steering switch harness connector M444 terminal 3(B) and ground.
   1. Continuity should exist.
Fig 4: Checking Steering Switch Ground Circuit
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

OK >> Replace steering switch.

NG >> Repair or replace harness.