NAVIGATION SYSTEM (for DVD) Parking Brake Switch Circuit

DESCRIPTION

This circuit is from the parking brake switch to the navigation receiver assembly.

INSPECTION PROCEDURE

PROCEDURE

1. Click here

   CHECK BRAKE WARNING LIGHT

   
   

   1. Check that the brake warning light comes on when the parking brake is applied and goes off when it is released.

      OK
      The brake warning light operates as specified above.

   
   
   • OKClick here
   • NGClick here
2. Click here

   CHECK HARNESS AND CONNECTOR (PARKING BRAKE SWITCH - NAVIGATION RECEIVER)

   
   
   1. 

      Disconnect navigation receiver assembly connector E4 and parking brake switch connector A18.

   2. 

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

      Standard resistance
      Tester connection Condition Specified condition E4-1 (PKB) - A18-1 Always Below 1 Ω E4-1 (PKB) - Body ground Always 10 kΩ or higher

   
   
   • OKClick here
   • NGClick here
3. Click here

   INSPECT PARKING BRAKE SWITCH

   
   
   1. 

      Disconnect the parking brake switch.

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

      Standard resistance
      Tester connection Condition Specified condition Switch connector - Switch body ON (When shaft is not pressed) Below 1 Ω Switch connector - Switch body OFF (When shaft is pressed) 10 kΩ or higher

   
   
   • OKClick here
   • NGClick here
4. Click here

   PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLEClick here

5. Click here

   REPLACE PARKING BRAKE SWITCHClick here

6. Click here

   REPAIR OR REPLACE HARNESS OR CONNECTOR