Navigation System Parking Brake Switch Circuit

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK VEHICLE SIGNAL (OPERATION CHECK)

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

INSPECT PARKING BRAKE SWITCH ASSEMBLY

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

1. Enter the "Function Check/Setting I" mode and select "Vehicle Signal" (Click here).
   

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

   OK:

   Parking Brake Position	Display
   Applied	ON
   Released	OFF

   HINT:

   This display is updated once per second. As a result, it is normal for the display to lag behind the actual change in the switch.

1. Disconnect the E53 parking brake switch assembly connector.
   

2. Disconnect the F77 multi-media module receiver 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

1. Remove the parking brake switch assembly connector (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

   Text in Illustration

   	ON
   	OFF