Multi-media Interface ECU Power Source Circuit: Procedure

1. Disconnect the R65 multi-media interface ECU connector.
   Fig 1: Identifying R65 Multi-Media Interface ECU Connector

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2. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   R65-12 (+B) - R65-7 (GND)	Always	11 to 14 V
   R65-11 (ACC) - R65-7 (GND)	Engine switch on (ACC)	11 to 14 V

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Multi-media Interface ECU)

NG → See step   2 

OK → See step   3 

1. Disconnect the R65 multi-media interface ECU connector.
2. Disconnect the L116 display and navigation module display connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   R65-11 (ACC) - L116-11 (ACC)	Always	Below 1 Ω
   R65-12 (+B) - L116-12 (+B)	Always	Below 1 Ω
   R65-7 (GND) - L116-7 (GND)	Always	Below 1 Ω
   R65-11 (ACC) - Body ground	Always	10 kΩ or higher
   R65-12 (+B) - Body ground	Always	10 kΩ or higher
   R65-7 (GND) - Body ground	Always	10 kΩ or higher

   RESULT
   
   

   Result	Proceed to
   OK (w/ Navigation System [for DVD])	A
   OK (w/ Navigation System [for HDD])	B
   OK (w/o Navigation System)	C
   NG	D

B → See step   5 

C → See step   6 

D → REPAIR OR REPLACE HARNESS OR CONNECTOR 

A → See step   4