NAVIGATION SYSTEM Radio Broadcast cannot be Received or Poor Reception

WIRING DIAGRAM

CAUTION / NOTICE / HINT

PROCEDURE

1. CHECK IF RADIO AUTO-SEARCH FUNCTIONS PROPERLY

   1. Check the radio automatic station search function by activating it.

      OK

      Automatic station search function stops on a station.

   Result

   Proceed to
   OK
   NG

   OK

   USE SIMULATION METHOD TO CHECK

   Click hereClick hereClick here

   NG

2. CHECK OPTIONAL COMPONENTS

   1. Check if any optional components that may decrease reception capacity, such as sunshade film or a telephone antenna, are installed.

      OK

      Optional components are installed.

      Note:

      Do not remove optional components without permission of the customer.

   Result

   Proceed to
   OK
   NG

   OK

   REMOVE OPTIONAL COMPONENTS AND CHECK AGAIN (SEE NOTICE ABOVE)

   NG

3. CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY (ANTENNA)

   1. 

      Remove the antenna connector from the radio and display receiver assembly.

   2. Turn the power switch on (ACC) with the radio and display receiver assembly connector connected.

   3. Turn on the radio and turn into AM mode.

   4. Place a screwdriver, thin wire or other metal object on the radio and display receiver assembly antenna jack and check that noise can be heard from the speakers.

      OK

      Noise occurs.

   Result

   Proceed to
   OK
   NG

   NG

   REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

   Click here

   OK

4. INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY

   1. Disconnect the RA radio and display receiver assembly connector.

   2. 

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

      Standard Voltage

      Tester Connection	Switch Condition	Specified Condition
      5 (ANT+) - Body ground	Power switch on (ACC), radio switch on and FM or AM selected	11 to 14 V

   Result

   Proceed to
   OK
   NG

   NG

   REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

   Click here

   OK

5. CHECK VEHICLE CONDITION

   1. Check the vehicle condition.

   Result

   Result	Proceed to
   Except models with the vehicle identification number on the certification label ending with the character X	A
   Only for models with the vehicle identification number on the certification label ending with the character X	B

   B

   CHECK NO. 3 ANTENNA CORD SUB-ASSEMBLYClick here

   A

6. CHECK NO. 3 ANTENNA CORD SUB-ASSEMBLY

   1. 

      *a	Front view of wire harness connector (to No.1 Amplifier Antenna Assembly)
      *b	Front view of wire harness connector (to No. 2 Antenna Cord Sub-assembly)

      Disconnect the antenna connector from the No. 1 amplifier antenna assembly.

   2. Disconnect the antenna connector from the No. 2 antenna cord sub-assembly.

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

      Standard Resistance

      Tester Connection	Condition	Specified Condition
      2 - 1	Always	Below 1 Ω
      1 - 3	Always	Below 1 Ω
      2 - Body ground	Always	10 kΩ or higher
      1 - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

   NG

   REPLACE NO. 3 ANTENNA CORD SUB-ASSEMBLY

   Click here

   OK

7. CHECK NO. 2 ANTENNA CORD SUB-ASSEMBLY

   1. 

      *a	Front view of wire harness connector (to No. 3 Antenna Cord Sub-assembly)
      *b	Front view of wire harness connector (to Antenna Cord Sub-assembly)

      Disconnect the antenna connector from the No. 3 antenna cord sub-assembly.

   2. Disconnect the antenna connector from the antenna cord sub-assembly.

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

      Standard Resistance

      Tester Connection	Condition	Specified Condition
      1 - 2	Always	Below 1 Ω
      3 - 3	Always	Below 1 Ω
      1 - Body ground	Always	10 kΩ or higher
      3 - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

   NG

   REPLACE NO. 2 ANTENNA CORD SUB-ASSEMBLY

   Click here

   OK

8. CHECK ANTENNA CORD SUB-ASSEMBLY

   1. 

      *a	Front view of wire harness connector (to No. 2 Antenna Cord Sub-assembly)
      *b	Front view of wire harness connector (to Radio and Display Receiver Assembly)

      Disconnect the antenna connector from the No. 2 antenna cord sub-assembly.

   2. Disconnect the antenna connector from the radio and display receiver assembly.

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

      Standard Resistance

      Tester Connection	Condition	Specified Condition
      2 - RA-3 (MAIN)	Always	Below 1 Ω
      3 - RA-5 (ANT+)	Always	Below 1 Ω
      2 - Body ground	Always	10 kΩ or higher
      3 - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

   NG

   REPLACE ANTENNA CORD SUB-ASSEMBLY

   Click here

   OK

9. CHECK NO. 1 AMPLIFIER ANTENNA ASSEMBLY

   1. Replace the No. 1 amplifier antenna assembly and check if radio broadcasts can be received normally.

      Click here

      OK

      Radio broadcasts can be received normally.

   Result

   Proceed to
   OK
   NG

   OK

   END (NO. 1 AMPLIFIER ANTENNA ASSEMBLY IS DEFECTIVE)

   NG

   REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

   Click here

10. CHECK NO. 3 ANTENNA CORD SUB-ASSEMBLY

    1. 

       *a	Front view of wire harness connector (to Satellite Radio Antenna Assembly)
       *b	Front view of wire harness connector (to No. 2 Antenna Cord Sub-assembly)

       Disconnect the antenna connector from the Satellite Radio Antenna Assembly.

    2. Disconnect the antenna connector from the No. 2 antenna cord sub-assembly.

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

       Standard Resistance

       Tester Connection	Condition	Specified Condition
       2 - 1	Always	Below 1 Ω
       1 - 3	Always	Below 1 Ω
       2 - Body ground	Always	10 kΩ or higher
       1 - Body ground	Always	10 kΩ or higher

    Result

    Proceed to
    OK
    NG

    NG

    REPLACE NO. 3 ANTENNA CORD SUB-ASSEMBLY

    Click here

    OK

11. CHECK NO. 2 ANTENNA CORD SUB-ASSEMBLY

    1. 

       *a	Front view of wire harness connector (to No. 3 Antenna Cord Sub-assembly)
       *b	Front view of wire harness connector (to Antenna Cord Sub-assembly)

       Disconnect the antenna connector from the No. 3 antenna cord sub-assembly.

    2. Disconnect the antenna connector from the antenna cord sub-assembly.

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

       Standard Resistance

       Tester Connection	Condition	Specified Condition
       1 - 2	Always	Below 1 Ω
       3 - 3	Always	Below 1 Ω
       1 - Body ground	Always	10 kΩ or higher
       3 - Body ground	Always	10 kΩ or higher

    Result

    Proceed to
    OK
    NG

    NG

    REPLACE NO. 2 ANTENNA CORD SUB-ASSEMBLY

    Click here

    OK

12. CHECK ANTENNA CORD SUB-ASSEMBLY

    1. 

       *a	Front view of wire harness connector (to No. 2 Antenna Cord Sub-assembly)
       *b	Front view of wire harness connector (to Radio and Display Receiver Assembly)

       Disconnect the antenna connector from the No. 2 antenna cord sub-assembly.

    2. Disconnect the antenna connector from the radio and display receiver assembly.

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

       Standard Resistance

       Tester Connection	Condition	Specified Condition
       2 - RA-3 (MAIN)	Always	Below 1 Ω
       3 - RA-5 (ANT+)	Always	Below 1 Ω
       2 - Body ground	Always	10 kΩ or higher
       3 - Body ground	Always	10 kΩ or higher

    Result

    Proceed to
    OK
    NG

    NG

    REPLACE ANTENNA CORD SUB-ASSEMBLY

    Click here

    OK

13. CHECK SATELLITE RADIO ANTENNA ASSEMBLY

    1. Replace the satellite radio antenna assembly and check if radio broadcasts can be received normally.

       Click here

       OK

       Radio broadcasts can be received normally.

    Result

    Proceed to
    OK
    NG

    OK

    END (SATELLITE RADIO ANTENNA ASSEMBLY IS DEFECTIVE)

    NG

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

    Click here