DEFINITION: This diagnostic table is designed to diagnose ONLY the 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

Is the symptom related to the ability of the park brake system to hold and/or release?

Go to Diagnostic Starting Point - Park Brake

Go to Diagnostic Starting Point - Hydraulic Brakes in Hydraulic Brakes

1. Raise and support the vehicle with the rear axle supported by jack stands. Refer to Lifting and Jacking the Vehicle in General Information.
2. With the park brake 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 9

Go to Step 5

1. Apply the park brake.
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 16

Go to Step 6

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 7

Go to Step 8

Reconnect or replace the park brake cables as necessary. Refer to the following procedures as necessary:

Did you complete the repair and/or replacement?

Go to Step 16

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Check the adjustment of the park brake. Refer to Park Brake Adjustment .

Was the park brake adjusted properly?

Go to Step 16

Go to Step 9

Notice: Do not depress the brake pedal with the brake rotors and/or the brake drums removed, or with the brake calipers repositioned away from the brake rotors, or damage to the brake system may result.

1. Remove the rear brake rotors or brake drums. Refer to Rear Brake Rotor Replacement in Disc Brakes or Brake Drum Replacement in Drum Brakes.
2. If equipped with rear disc brakes, inspect the park brake shoe hardware for looseness, damaged, broken or missing components.
3. If equipped with drum brakes, inspect the park brake hardware for looseness, damaged, broken or missing components. Refer to Park Brake Hardware Inspection .
4. Check the park brake actuators or adjusters for a seized condition.
5. If equipped with rear disc brakes. Refer to Parking Brake Actuator Replacement .
6. If equipped with rear drum brakes. Refer to Drum Brake Adjusting Hardware Replacement

Does the park brake hardware and/or the park brake actuators or adjusters require replacement?

Go to Step 10

Go to Step 11

1. Replace park brake hardware components as necessary.

•	If equipped with rear disc brakes, refer to Parking Brake Shoe Replacement .

•	If equipped with drum brakes, refer to Park Brake Hardware Replacement .

2. Replace the park brake actuators or adjusters as necessary.

•	If equipped with rear disc brakes, refer to Parking Brake Actuator Replacement .

•	If equipped with drum brakes, refer to Drum Brake Adjusting Hardware Replacement in Drum Brakes.

Did you complete the replacement?

Go to Step 16

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Have an assistant apply and release the park brake, while you observe the park brake cables for free movement.

Did the park brake cables move freely?

Go to Step 12

Go to Step 14

Check the adjustment of the park brake and adjust as necessary. Refer to Park Brake Adjustment .

Did you find and correct the condition?

Go to Step 16

Go to Step 13

1. Apply the park brake.
2. Attempt to rotate the rear wheels to check the rear brakes for a significant amount of drag.
3. Release the park brake.
4. Rotate the rear wheels to check the rear brakes for a significant reduction of drag.

Did the park brake apply and release properly?

Go to Step 16

Go to Symptoms - Park Brake

Replace any of the park brake cables that do not have free movement - not releasing properly. Refer to the following procedures as necessary:

Did you find and correct the condition?

Go to Step 16

Go to Step 15

Inspect the park brake lever for proper operation and replace if necessary. Refer to Parking Brake Lever Replacement .

Did you find and correct the condition?

Go to Step 16

Go to Symptoms - Park Brake

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

Did you complete the operation?

Park Brake System OK

Go to Symptoms - Park Brake