MULTIFUNCTION Switch Does Not Operate

Inspection procedure

1. MULTIFUNCTION SWITCH SELF-DIAGNOSIS 
   • Perform multifunction switch self-diagnosis. Refer to MULTIFUNCTION SWITCH SELF-DIAGNOSIS FUNCTION 

   Is self-diagnosis result OK? 

   1. OK >> GO TO 2.
   2. NG >> Replace multifunction switch.
2. POWER AND GROUND CIRCUIT CHECK 
   • Check power and ground circuit. Refer to POWER SUPPLY AND GROUND CIRCUIT CHECK FOR MULTIFUNCTION SWITCH 

   OK or NG 

   1. OK >> GO TO 3
   2. NG >> Repair or replace harness.
3. COMMUNICATION CIRCUIT SELF-DIAGNOSIS 
   1. Perform the self-diagnosis mode in the self-diagnosis function (If the self-diagnosis cannot be activated with the multifunction switch, check with CONSULT-II). Refer to SELF-DIAGNOSIS MODE (WITH NAVIGATION SYSTEM)  and SELF-DIAGNOSIS MODE (WITHOUT NAVIGATION SYSTEM)  .

   Is self-diagnosis result OK? 

   1. OK >> Replace display
   2. NG >> With the self-diagnosis results, check the malfunction part.