NAVIGATION SYSTEM(for Navigation Receiver Type), Diagnostic DTC:B1579

DESCRIPTION

The navigation receiver assembly and telephone microphone assembly*1 or map light assembly (telephone microphone assembly)*2 are connected to each other using the microphone connection detection signal lines.

This DTC is stored when a microphone connection detection signal line is disconnected.

• *1: w/o Sliding Roof

• *2: w/ Sliding Roof

WIRING DIAGRAM

PROCEDURE

1. CHECK MODEL

   
   

   1. Choose the model to be inspected.

      Result
      Result Proceed to w/ Sliding Roof A w/o Sliding Roof B

   
   

   B

   INSPECT NAVIGATION RECEIVER ASSEMBLY Click here

   A

2. INSPECT NAVIGATION RECEIVER ASSEMBLY

   
   
   1. 

      *a	Component with harness connected (Navigation Receiver Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition F92-19 (MIN-) - Body ground Always Below 1 Ω

      Result
      Proceed to OK NG

   
   

   NG

   REPLACE NAVIGATION RECEIVER ASSEMBLY Click here

   OK

3. CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY))

   
   

   1. Disconnect the F92 navigation receiver assembly connector.

   2. Disconnect the O4 map light assembly (telephone microphone assembly) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition F92-6 (SNS2) - O4-14 (SNS2) Always Below 1 Ω F92-19 (MIN-) - O4-15 (MCO-) Always Below 1 Ω F92-6 (SNS2) or O4-14 (SNS2) - Body ground Always 10 kΩ or higher F92-19 (MIN-) or O4-15 (MCO-) - Body ground Always 10 kΩ or higher

      Result
      Proceed to OK NG

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

4. INSPECT MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY)

   
   

   1. Remove the map light assembly (telephone microphone assembly).

      Tech Tips

      Click here

   2. 

      *a	Component without harness connected (Map Light Assembly (Telephone Microphone Assembly))

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

      Standard Resistance
      Tester Connection Condition Specified Condition O4-14 (SNS2) - O4-15 (MCO-) Always Below 1 Ω

      Result
      Proceed to OK NG

   
   

   OK

   REPLACE NAVIGATION RECEIVER ASSEMBLY Click here

   NG

5. REPLACE TELEPHONE MICROPHONE ASSEMBLY

   
   

   1. Replace the telephone microphone assembly with a new or known good one.

      Tech Tips

      Click here

      Result
      Proceed to NEXT

   
   

   NEXT

6. CLEAR DTC

   
   

   1. Clear the DTCs.

      
      Body Electrical > Navigation System > Clear DTCs

      Result
      Proceed to NEXT

   
   

   NEXT

7. CHECK FOR DTC

   
   

   1. Recheck for DTCs and check that no DTCs are output.

      
      Body Electrical > Navigation System > Trouble Codes

      Result
      Result Proceed to DTCs are not output A DTCs are output B

   
   

   A

   END

   B

   REPLACE MAP LIGHT ASSEMBLY Click here

8. INSPECT NAVIGATION RECEIVER ASSEMBLY

   
   
   1. 

      *a	Component with harness connected (Navigation Receiver Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition F92-19 (MIN-) - Body ground Always Below 1 Ω

      Result
      Proceed to OK NG

   
   

   NG

   REPLACE NAVIGATION RECEIVER ASSEMBLY Click here

   OK

9. CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - TELEPHONE MICROPHONE ASSEMBLY)

   
   

   1. Disconnect the F92 navigation receiver assembly connector.

   2. Disconnect the O2 telephone microphone assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition F92-6 (SNS2) - O2-3 (SNS2) Always Below 1 Ω F92-19 (MIN-) - O2-4 (MCO-) Always Below 1 Ω F92-6 (SNS2) or O2-3 (SNS2) - Body ground Always 10 kΩ or higher F92-19 (MIN-) or O2-4 (MCO-) - Body ground Always 10 kΩ or higher

      Result
      Proceed to OK NG

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

10. INSPECT TELEPHONE MICROPHONE ASSEMBLY

    
    

    1. Remove the telephone microphone assembly.

       Tech Tips

       Click here

    2. 

       *a	Component without harness connected (Telephone Microphone Assembly)

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

       Standard Resistance
       Tester Connection Condition Specified Condition O2-3 (SNS2) - O2-4 (MCO-) Always Below 1 Ω

       Result
       Proceed to OK NG

    
    

    OK

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here

    NG

    REPLACE TELEPHONE MICROPHONE ASSEMBLY Click here