Step | Action | Yes | No | ||
---|---|---|---|---|---|
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. | |||||
1 | Were you sent here from a Hydraulic Brake Symptom Table? | Go to Step 4 | Go to Step 2 | ||
2 | Were you sent here from a Park Brake Symptom Table? | Go to Step 4 | Go to Step 3 | ||
3 | Is the symptom related to the ability of the park brake system to hold and/or release? | ||||
4 |
Do the rear brakes have a significant amount of drag? | Go to Step 9 | Go to Step 5 | ||
5 |
Do the rear brakes have a significant amount of drag? | Go to Step 19 | Go to Step 6 | ||
6 | Visually check the park brake cable connections and the cables that are accessible on the UNDERSIDE of the vehicle for disconnections and/or damage. Were any or the park brake cables disconnected and/or damaged? | Go to Step 7 | Go to Step 8 | ||
7 | 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 19 | -- | ||
8 | 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 19 | Go to Step 9 | ||
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.
Does the park brake hardware and/or the park brake actuators require replacement? | Go to Step 10 | Go to Step 11 | ||
10 |
Did you complete the replacement? | Go to Step 19 | -- | ||
11 | With the aid of an assistant, apply and release the parking brake while observing the cables for free movement. Do the park brake cables move freely? | Go to Step 12 | Go to Step 14 | ||
12 | 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 19 | Go to Step 13 | ||
13 |
Did the park brake apply and release properly? | Go to Step 19 | Go to Symptoms - Park Brake | ||
14 | Disconnect the park brake cable connections that are accessible on the UNDERSIDE of the vehicle one at a time and check each cable for free movement. Do any of the park brake cables accessible on the underside of the vehicle require replacement? | Go to Step 15 | Go to Step 16 | ||
15 | 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 complete the replacement? | Go to Step 19 | -- | ||
16 |
Did you find and correct a condition? | Go to Step 19 | Go to Step 17 | ||
17 | Inspect the park brake pedal assembly for proper operation and replace as necessary. Refer to Parking Brake Lever Pedal Assembly Replacement . Did you find and correct the condition? | Go to Step 19 | Go to Step 18 | ||
18 |
Did you complete the replacement and adjustment? | Go to Step 19 | Go to Symptoms - Park Brake | ||
19 | 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 |