ELECTRIC PARKING BRAKE ACTUATOR ON-VEHICLE INSPECTION

PROCEDURE

1. INSPECT ELECTRIC PARKING BRAKE ACTUATOR ASSEMBLY

   Tech Tips

   Using the Techstream to perform the Active Tests allows relays, VSVs and actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.

   
   

   1. Turn the power switch off.

   2. Connect the GTS to the DLC3.

   3. Turn the power switch on (IG).

   4. Turn the Techstream on.

   5. Enter the following menus: Chassis / Electric Parking Brake / Active Test.

   6. When the vehicle's tires are lifted off the ground and the Techstream is used to operate the electric parking brake actuator assembly, check the condition of the rear tires.

   7. According to the display on the tester, perform the Active Test.

      
      Chassis > Electric Parking Brake > Active Test

      Tester Display
      PKB Release1

      
      Chassis > Electric Parking Brake > Active Test

      Tester Display
      PKB Lock1

      If the result is not as specified, inspect the electric parking brake actuator assembly.

      Click here

   8. Turn the power switch on (IG), push the electric parking brake switch assembly to the lock side for 1 second and check that the parking brake indicator light (red) illuminates.

   9. Pull the electric parking brake switch assembly to the release side for 1 second and check that the parking brake indicator light (red) turns off.

   10. Also, check that the brake warning light / yellow (minor malfunction) does not illuminate at this time.