Inspection Procedure

1. Measure the voltage according to the value(s) in the table below.
   Fig 1: Identifying Multi-Display Controller Connector Terminal

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard voltage 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Switch Condition	Specified Condition
   R32-12(MUT3)-Body ground	Turn engine switch on (ACC), audio system is playing → Changing modes	Above 3.5 V → Below 1 V

NG: Go to step 2 

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See  PROBLEM SYMPTOMS TABLE   ) 

1. Disconnect the L62 navigation connector.
2. Disconnect the R32 controller connector.
Fig 2: Identifying Display And Navigation Assembly Connector Terminal
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   L62-7(MUT2)-R32-12 (MUT3)	Always	Below 1 Ω
   L62-7 (MUT2) - Body ground	Always	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: GO TO NEXT STEP 

1. Reconnect the R32 controller connector.
Fig 3: Identifying Multi-Display Controller Connector Terminal
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the voltage according to the value(s) in the table below.

   Standard voltage 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Switch Condition	Specified Condition
   R32-12(MUT3)-Body ground	Audio system is playing	Above 3.5 V

NG: REPLACE MULTI-DISPLAY CONTROLLER (See  REMOVAL   ) 

OK: REPLACE DISPLAY AND NAVIGATION ASSEMBLY  (See REMOVAL )