AUDIO AND VISUAL SYSTEM (for Radio Receiver Type) Multi-media Interface ECU Power Source Circuit

DESCRIPTION

This circuit provides power to the multi-media interface ECU.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. CHECK MULTI-MEDIA INTERFACE ECU

   
   
   1. 

      Text in Illustration

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

      Disconnect the H99 multi-media interface ECU connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition H99-12 (+B) - H99-7 (GND) Always 11 to 14 V H99-11 (ACC) - H99-7 (GND) Ignition switch ACC 11 to 14 V

   
   

   NG

   CHECK HARNESS AND CONNECTOR (MULTI-MEDIA INTERFACE ECU - RADIO RECEIVER) Click here

   OK

   PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

2. CHECK HARNESS AND CONNECTOR (MULTI-MEDIA INTERFACE ECU - RADIO RECEIVER)

   
   
   1. 

      Text in Illustration

      *1	Front view of wire harness connector (to Multi-media Interface ECU)
      *2	Front view of wire harness connector (to Radio Receiver Assembly)

      Disconnect the H99 multi-media interface ECU connector.

   2. Disconnect the H103 radio receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition H99-11 (ACC) - H103-11 (ACC) Always Below 1 Ω H99-12 (+B) - H103-12 (+B) Always Below 1 Ω H99-7 (GND) - H103-7 (GND) Always Below 1 Ω H99-11 (ACC) - Body ground Always 10 kΩ or higher H99-12 (B+) - Body ground Always 10 kΩ or higher H99-7 (GND) - Body ground Always 10 kΩ or higher

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

   REPLACE RADIO RECEIVER ASSEMBLY Click here