DEFINITION: This diagnostic table is designed to diagnose ONLY the mechanical components of the PARK brake system in order to determine if the PARK brake system is operating properly. You will be directed by the appropriate Symptom table to go to other brake system diagnostic tables as appropriate.

Were you sent here from a Hydraulic Brake Symptom table?

Go to Step 4

Go to Step 2

Were you sent here from a Park Brake Symptom table?

Go to Step 4

Go to Step 3

Danger: Do not use a service jack in locations other than those specified to lift this vehicle. Lifting the vehicle with a jack in those other locations could cause the vehicle to slip off the jack and roll; this could cause injury or death.

1. Raise and support the vehicle with the rear axle supported by axle stands. Refer to Lifting and Jacking the Vehicle .
2. With the handbrake RELEASED, attempt to rotate the rear wheels to check the rear brakes for a significant amount of drag.

Do the rear brakes have a significant amount of drag?

Go to Step 7

Go to Step 4

1. Apply the handbrake.
2. Attempt to rotate the rear wheels to check the rear brakes for a significant amount of drag.

Do the rear brakes have a significant amount of drag?

Go to Step 12

Go to Step 5

Visually inspect the park brake cable connections and the cables that are accessible on the UNDERSIDE of the vehicle for disconnections and/or damage.

Were any of the park brake cables disconnected and/or damaged?

Go to Step 6

Go to Step 7

Reconnect or replace the handbrake cables as necessary. Refer to Handbrake Cable Replacement , or Handbrake Rear Cable Replacement - Left Side , or Handbrake Rear Cable Replacement - Right Side .

Did you complete the repair and/or replacement?

Go to Step 12

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1. Disconnect the rear park brake cables from the equalizer and from the brake caliper piston apply levers. Refer to Handbrake Rear Cable Replacement - Left Side and Handbrake Rear Cable Replacement - Right Side .
2. Have an assistant apply and maintain the caliper piston apply lever to apply the caliper piston.
3. Attempt to rotate the rear wheels to check the rear brakes for a significant amount of drag.
4. Release the caliper piston apply lever.
5. Repeat steps 2-4 for the opposite calliper piston apply lever.
6. Rotate the rear wheels to check the brake for a significant reduction of drag.

Did the brake calipers apply and release properly?

Go to Step 9

Go to Step 8

Replace the appropriate rear brake caliper. Refer to Rear Brake Calliper Replacement .

Did you complete the replacement?

Go to Step 12

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With the aid of an assistant, apply and release the parking brake while observing the cables for free movement.

Did the handbrake cables move freely?

Go to Step 11

Go to Step 10

Replace any of the park brake cables inspected that do not have free movement. Refer to Handbrake Cable Replacement , or Handbrake Rear Cable Replacement - Left Side , or Handbrake Rear Cable Replacement - Right Side .

Did you complete the replacement?

Go to Step 12

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Inspect the electronic handbrake control module for proper operation and replace if necessary. Refer to Electronic Parking Brake Control Module Replacement .

Did you complete the replacement?

Go to Step 12

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Install or connect any components that were removed or disconnected during diagnosis.

Did you complete the operation?

Park Brake System OK

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