The numbers below refer to the step numbers on the diagnostic table:
Lubricant leaks from non-brake system components may come in contact with and contaminate brake system components.
Lubricant leaks from non-brake system components may come in contact with and contaminate brake system components.
Disc brake rotor shields/backing plates that come in contact with disc brake rotors may cause brake system noise.
Step | Action | Yes | No | ||||||||||||||||||||
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DEFINITION: This diagnostic table is designed to diagnose ONLY the components of the DISC brake system in order to determine if the DISC 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 Brake Symptom Table? | Go to Step 2 | |||||||||||||||||||||
2 | Visually inspect the disc brake pads for the following:
Did you find any conditions to indicate a concern with any of the (front and/or rear) disc brake pads? | Go to Step 3 | Go to Step 12 | ||||||||||||||||||||
3 | Are any of the (front and/or rear) disc brake pads contaminated? | Go to Step 8 | Go to Step 4 | ||||||||||||||||||||
4 | Are any of the (front and/or rear) disc brake pads worn unevenly? | Go to Step 7 | Go to Step 5 | ||||||||||||||||||||
5 | Are any of the (front and/or rear) disc brake pads and/or pad hardware loose or damaged? | Go to Step 7 | Go to Step 6 | ||||||||||||||||||||
6 |
Did you complete the inspection and replacement? | Go to Step 12 | -- | ||||||||||||||||||||
7 |
Notice: Support the brake caliper with heavy mechanic wire, or equivalent, whenever it is separated from its mount and the hydraulic flexible brake hose is still connected. Failure to support the caliper in this manner will cause the flexible brake hose to bear the weight of the caliper, which may cause damage to the brake hose and in turn may cause a brake fluid leak. Refer to Disc Brake Mounting and Hardware Inspection .
Refer to the following procedures as required: Did you complete the inspection and replacement? | Go to Step 12 | -- | ||||||||||||||||||||
8 |
Refer to the following procedures as required: Did you find and correct the source of the leak causing contamination of the pads? | Go to Step 11 | Go to Step 9 | ||||||||||||||||||||
Did you find and correct the source of the leak causing contamination of the pads? | Go to Step 11 | Go to Step 10 | |||||||||||||||||||||
Refer to the following procedures:
Did you find and correct the source of the leak causing contamination of the pads? | Go to Step 11 | -- | |||||||||||||||||||||
11 |
Notice: Support the brake caliper with heavy mechanic wire, or equivalent, whenever it is separated from its mount and the hydraulic flexible brake hose is still connected. Failure to support the caliper in this manner will cause the flexible brake hose to bear the weight of the caliper, which may cause damage to the brake hose and in turn may cause a brake fluid leak. Refer to Disc Brake Mounting and Hardware Inspection .
Did you complete the cleaning, inspection and replacement? | Go to Step 12 | -- | ||||||||||||||||||||
Visually inspect each of the disc brake rotor shields/backing plates for evidence of contact with the brake rotors. Are any of the brake rotor shields/backing plates contacting the brake rotors? | Go to Step 13 | Go to Step 14 | |||||||||||||||||||||
13 | Repair or replace the disc brake rotor shield/backing plate as required. Refer to Front Brake Shield Replacement . Did you complete the repair or replacement? | Go to Step 14 | -- | ||||||||||||||||||||
14 |
Important: Make the following determination AND ANSWER the question INDIVIDUALLY for EACH rotor. Refer to Brake Rotor Thickness Measurement . Does the disc brake rotor meet the minimum requirements for REFINISHING? | Go to Step 15 | Go to Step 17 | ||||||||||||||||||||
15 |
Refer to Brake Rotor Surface and Wear Inspection .
Important: Make the following determination AND ANSWER the question INDIVIDUALLY for EACH rotor. If the brake rotor exhibits any of the following conditions, it requires refinishing.
Does the brake rotor require REFINISHING? | Go to Step 16 | Go to Step 20 | ||||||||||||||||||||
16 |
Were you able to REFINISH the brake rotor within the minimum requirements? | Go to Step 20 | Go to Step 19 | ||||||||||||||||||||
17 | Is the brake rotor at or below the DISCARD requirements? | Go to Step 19 | Go to Step 18 | ||||||||||||||||||||
18 |
Refer to Brake Rotor Surface and Wear Inspection .
Important: Make the following determination AND ANSWER the question INDIVIDUALLY for EACH rotor. If a brake rotor exhibits any of the following conditions, it requires replacement.
Does the brake rotor require REPLACEMENT? | Go to Step 19 | Go to Step 20 | ||||||||||||||||||||
19 | Replace the brake rotor. Refer to Brake Rotor Replacement . Did you complete the replacement? | Go to Step 20 | -- | ||||||||||||||||||||
20 | Install or connect components that were removed or disconnected during diagnosis. Did you complete the operation? | Disc Brake System OK Return to Symptom Table | -- |