Two controls, one job: holding the vehicle still
The two functions in this bezel are often specified separately, and they are not the same feature. The electronic parking brake replaces the handbrake lever: pulling the paddle asks the EPB control unit to apply the parking brake and hold it applied, including after the ignition is switched off, and pressing it asks for release. There is no cable pull at the switch and no mechanical latch — the paddle sends the request, and the holding force lives in the actuators.
Auto Hold is a driving-cycle convenience layered on the service brake. With it armed, the brake pressure the driver applied at a stop is maintained after the pedal is released, and it lets go automatically when the driver pulls away. It uses the same brake hardware rather than a second mechanism, and because it is a per-cycle function rather than a parking function it is armed and disarmed from its own button — which is why the two controls sit side by side rather than being merged into one.
Putting them in a single bezel means one panel aperture, one harness interface and one part number on the console instead of two, which is usually why a programme asks for the combined unit in the first place.
What the switch does, and what it does not
This distinction matters more here than on any other switch in the catalogue, because braking is involved. The EDK-2213 is an input device. It reports that the driver asked for apply, release or Auto Hold arming. Everything downstream of that request — driving the actuators, measuring and holding the clamp force, deciding whether the request is permitted in the current vehicle state, detecting an actuator fault, choosing the fallback behaviour and lighting a warning in the cluster — belongs to the vehicle's EPB control unit and brake system, not to this part.
That also means the functional-safety classification, diagnostic coverage and failure-mode handling are defined at brake-system level by the programme, and the switch is specified to fit inside that definition. If your build has an ASIL requirement, a redundant-contact scheme or a specific plausibility strategy for the driver request, send it with the RFQ and it becomes part of the switch specification rather than something assumed afterwards.
Reading the panel
Each control has its own red indicator above the symbol, so the parking-brake state and the Auto Hold state are legible at a glance without the driver having to look at the cluster. The EPB paddle also carries a light-guide surround that outlines the paddle in the dark — a location aid rather than a status light, which is the usual split on this kind of console group.
What the indicators are driven by is a system decision, not a switch decision. Driving them from the brake system makes the lamp report the achieved state rather than the button press, which is the behaviour most programmes want on a parking brake; driving them locally from the switch is simpler to wire but only ever confirms that the control was operated. Either mapping — along with indicator and backlight colour, brightness and dimming behaviour — is confirmed on the release drawing.
What gets fixed on the release drawing
The specification table above is short on purpose. The EDK-2213 is built to a customer release drawing, so publishing one set of numbers would misrepresent parts that are genuinely built to different envelopes. Below is what we confirm in writing before you commit — and, read the other way round, the list to send with an enquiry.
| Group | Confirmed at RFQ |
|---|---|
| Electrical interface | System voltage; whether the driver request reaches the EPB control unit as discrete lines or over a bus; connector family and pinout |
| Feel and durability | Actuation force and travel for the paddle and for the button; endurance cycles; operating temperature range; sealing class behind the console |
| System integration | How the two red indicators and the light-guide surround are driven; indicator and backlight colour, brightness and dimming; console aperture and styling; any functional-safety or diagnostic requirement inherited from the brake system |
Its neighbours on the console
The EDK-2213 belongs to the Switches & Sensors family as a console HMI input. Its natural neighbours are the other driveline and console controls: the EDK-916 electronic gear selector sits alongside it on shift-by-wire builds, where the park position and the parking brake are usually interlocked at system level; the TDK-902 / TDK-905 start-stop button is the other single-purpose console button on the same panel; and the TDK-2202 / 2203 power-window and central-lock switch covers the door-side half of the same cabin HMI set. The switch selector lists the family side by side, and the Switches & Sensors buyer guide covers how console inputs reach the controllers that act on them.
Build and validation
Built under IATF 16949 with APQP project planning and a PPAP package available for OEM programmes. End-of-line testing follows the programme's control plan, and because this is a brake-system input the test content and the acceptance limits are agreed with the customer rather than set by us. Sealing, endurance and environmental validation are run on a sample basis in our in-house lab, with certified EMC testing performed at third-party accredited laboratories when the programme requires it.
What buyers ask first
Is this one part or two? One part — a single bezel in a single panel aperture, with an integrated connector body at the base. The connector family and the pin count are confirmed per programme.
Does the switch apply the brake? No. It sends the driver's request; the EPB control unit drives the actuators, holds the clamp force and handles faults. Treat this part as an input in your architecture.
What is the difference between the P button and the A button? The P paddle is the parking brake and stays applied with the vehicle switched off. The A button arms Auto Hold, which holds the service brake at a stop within a driving cycle and releases when you pull away.
Is it CAN or hard-wired? Confirmed per programme. The answer follows your architecture — whether the console reaches the EPB control unit directly or through the body network — so tell us which one you are on and it is fixed on the drawing.
Can the symbols, indicator colour or bezel finish be changed? These are drawing-level items on a console part, so they are handled as part of the programme specification. Send the panel drawing and the styling requirement with your enquiry.
How to ask
Send the three groups above, or as much of them as you have settled — a console drawing plus a note on how the driver request reaches your EPB control unit is usually enough to start a quote. Use the contact page; drawings welcome.
