Auto Service Professional

FEB 2018

Magazine for the auto service professional

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30 | ASP February 2018 Technical compressor, press the piston straight back (turning is not required). 5. After the rear brake service is complete, reinstall the electric parking brake actua- tor, using a new sealing O-ring and screws, making sure the mating surface is clean. 6. Turn the key to the ON position. 7. Pull the EPB switch to the on position to apply the parking brakes and push on the brake pedal at the same time. is will exit brake pad maintenance mode. 8. Turn the ignition off. Mazda integrated EPB system caliper servicing without a scan tool Mazda provides a non-scan tool option for 2016/2017 CX-5s to retract the integrated caliper back for service, that is very similar to the process for Fords. is procedure can be followed to enter maintenance mode. Entering service mode: 1. Switch the ignition ON, and don't touch the brake pedal (the engine must be off throughout the procedure). 2. Release the EPB. Note Steps 3 and 4 must be done within five seconds. 3. While simultaneously pressing the accel- erator pedal down fully, and pressing the EPB switch and holding both, switch the ignition OFF. You need to hold both the accelerator and EPB switch in this position during the next step. 4. Switch the ignition ON, while maintain- ing the depressed pedal and EPB switch. 5. If you have done everything correctly you should hear the caliper motors retracting. e yellow parking brake symbol with exclama- tion point will now be illuminated, indicating you are now in maintenance mode. 6. Switch the ignition off. NOTE: Mazda does not want the piston rotated when servicing the caliper, just pushed back. Rotating the piston may damage the caliper internal parts. Exiting service mode: 1. Switch ignition ON, engine off. Note Steps 2 and 3 must be done within 5 seconds. 2. While simultaneously pressing the accelerator pedal down fully, and pressing the EPB switch and holding, switch the ignition OFF. You need to hold both the accelerator and EPB switch in this position during the next step. If you are servicing a Volvo with EPB, a scan tool is going to be needed. It is important to remember the ignition must be in the "ON" or "RUN" position for this to happen, even on a push button start. This screen capture shows some of the data that is available using a scan tool. Notice the clamping force, and EPB switch status are shown, something that could aid in diagnostics. Here is a screen capture of the scan tool electri parking brake's park service options.

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