Inspection Procedure

1. Refer to the MULTI-DISPLAY POWER SOURCE CIRCUIT  ). If the power source circuit is operating normally, proceed to the next step.

1. Disconnect the RAD NO. 1 fuse from the engine room junction block.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance 

NG: REPLACE FUSE 

OK: Go to Next Step 

1. Disconnect the F32 ECU connector.
2. Disconnect the F30 display connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Condition	Specified Condition
   F32-13 (ACC) - F30-7 (ACC2)	Always	Below 1 Ω
   F32-15 (GND1) - F30-6 (GND2)	Always	Below 1 Ω
   F32-13 (ACC) - Body ground	Always	10 kΩ or higher
   F32-15 (GND1) - Body ground	Always	10 kΩ or higher

4. Measure the voltage according to the valve(s) in the table below.

   Standard Voltage 

Fig 1: Identifying F32 ECU Connector & F30 Display Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to Next Step 

1. Reconnect the F30 display connector.
2. Measure the voltage according to the value(s) in the table below.

   Standard Voltage 

Fig 2: Identifying F30 Display Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE MULTI-DISPLAY  (See MULTI-DISPLAY (W/NAVIGATION SYSTEM)  )

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