Best OBD2 Scanners for EPB Reset (Electronic Parking Brake Service Mode)
Last Updated on March 11, 2026 by Juraj
Vehicles equipped with electronic parking brake (EPB) require placing the brake system into service mode before replacing rear brake pads. The EPB motor must retract the brake pistons electronically so the calipers can be opened safely.
Because of this, servicing rear brakes on many modern vehicles requires a diagnostic scanner that supports EPB reset or brake service mode.
Below are some of the best OBD2 scanners that support electronic parking brake service functions.
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Quick recommendations
Best overall scanner for EPB reset
Mucar 892BT
The Mucar 892BT is one of the best all-around diagnostic scanners for DIY mechanics. It supports EPB reset, full system diagnostics, ECU coding and bidirectional testing, making it ideal for brake service and general diagnostics.
Best budget scanner for EPB reset
XTool A30M
The XTool A30M offers excellent value for the price. It supports full system diagnostics, bidirectional testing and many service procedures including electronic parking brake service mode.
Best smartphone scanner for EPB reset
Thinkdiag2
Thinkdiag2 is one of the most powerful smartphone-based diagnostic tools. It supports full system diagnostics, EPB service mode, ECU coding and many other advanced features.
Best OBD2 scanners for EPB reset
Mucar 892BT
The Mucar 892BT packs everything you need as a DIY mechanic — free updates, ECU coding, access to a mechanic community, and even the newest AI mechanic features.
(10% OFF with “CARHACKER” on official website)
XTool A30M
The XTool A30M is the best budget option to access all modules for codes, live data, bi-directional testing, and service procedures. Comes with free lifetime updates.
(10% OFF with “CARHACKER” on official website)
Mucar 682
The Mucar 682 is one of the most affordable full-system scan tools. It provides diagnostics, live data, bi-directional controls, and 20 service resets — all with free lifetime updates.
(10% OFF with “CARHACKER” on official website)
Thinkdiag2
The Thinkdiag2 turns your smartphone into a powerful diagnostic tool with full-system scans, bi-directional testing, ECU coding, and service procedures. The only drawback is the paid subscription after the first free year.
(10% OFF with “CARHACKER” on official website)
OBDlink MX+
The OBDlink MX+ is ELM327 adapter that together with Carista app can do EPB-reset for supported vehicles.
Why EPB reset requires a diagnostic scanner
Electronic parking brake systems use electric motors integrated into the rear brake calipers. These motors control the brake piston position.
When replacing brake pads, the piston must retract further to accommodate new thicker pads. Because the piston is connected to the EPB motor, it cannot simply be pushed back manually.
A compatible diagnostic scanner sends a command to the parking brake control module which:
- retracts the EPB motors
- opens the brake calipers
- allows safe brake pad replacement
After installing new pads, the scanner is used again to close the calipers and return the system to normal operation.
Vehicles that commonly require EPB reset
Electronic parking brake systems are common in many modern vehicles including:
- VW Passat B6 / B7 / B8
- Audi A4 / A5 / A6
- BMW 3 Series / 5 Series
- Mercedes-Benz models with EPB
- Mazda CX series
- Ford Mondeo
- Volvo models with electronic parking brake
These vehicles typically require a diagnostic scanner when replacing rear brake pads.
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