Suggest to repair at workshop, repair procedure as below:
1. Retrieve the data from brake testing rig to determine the preliminary problem cause.
2. Check if the brake pad, disc rotor has reached its wear limit and needed a replacement.
3. If the brake pad off-grinding then need to check if the caliper has deformed, replace if necessary.
4. Perform road test to the brake system and record the data after repairing done.