Visual Mute Signal Circuit between Navigation ECU and Multi-display (To 8/2009): Procedure

1. Measure the voltage according to the value(s) in the table below.
   Fig 1: Identifying G2 Connector

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   Standard Voltage

   Tester Connection	Condition	Specified Condition
   G2-11 (VMTI) - Body ground	Engine switch on (ACC), screen display on → screen display changes.	3.5 V or higher → Below 1 V → 3.5 V or higher

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   *1	Front view of wire harness connector (to Multi-display Assembly)

NG → See step   3 

OK → See step   2 

1. Disconnect the multi-display assembly connector.
   Fig 2: Identifying Multi-Display Assembly Connector

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2. Disconnect the display and navigation module display connector.
   Fig 3: Identifying Display And Navigation Module Display Connector

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3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   G2-11 (VMTI) - G5-11 (VMTF)	Always	Below 1 Ω
   G2-11 (VMTI) - Body ground	Always	10 kΩ or higher

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   *1	Front view of wire harness connector (to Multi-display Assembly)
   *2	Front view of wire harness connector (to Display and Navigation Module Display)

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Replace the multi-display assembly and check if it operates normally. Refer to REMOVAL .

   OK

   The navigation system operates normally.

NG → See step   5 

OK → END