NAVIGATION SYSTEM Parking Brake Switch Circuit

DESCRIPTION

This circuit includes the parking brake switch assembly and multi-media module receiver assembly.

PROCEDURE

1. Click here

   CHECK VEHICLE SIGNAL (OPERATION CHECK)

   
   
   1. 

      Display the "Vehicle Signal Check Mode" screen (Click here).

   2. Check that the display changes between ON and OFF according to the parking brake operation.

      OK
      Parking Brake Condition Display Applied ON Released OFF

      Tip:

      This display is updated once per second. As a result, it is normal for the display to lag behind the actual parking brake operation.

   
   
   • OK

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

   • NGClick here
2. Click here

   CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - PARKING BRAKE SWITCH ASSEMBLY)

   
   

   1. Disconnect the F77 multi-media module receiver assembly connector.

   2. Disconnect the E53 parking brake switch assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition F77-55 (PKB) - E53-1 Always Below 1 Ω F77-55 (PKB) - Body ground Always 10 kΩ or higher

   
   
   • OKClick here
   • NG

     REPAIR OR REPLACE HARNESS OR CONNECTOR

3. Click here

   INSPECT PARKING BRAKE SWITCH ASSEMBLY

   
   
   1. 

      Remove the parking brake switch assembly. (Click here).

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition 1 - Switch body ON (Shaft not pressed) Below 1 Ω OFF (Shaft pressed) 10 kΩ or higher

      Table 2. Text in Illustration

      	ON
      	OFF

   
   
   • OK

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

   • NG

     REPLACE PARKING BRAKE SWITCH ASSEMBLY (Click here)