gf4220p1003a

Electric parking brake, basic function

Type gf · emne 42.20 · version 0104 · 2020-09-11

Gælder for: Model all (CAR)

Ikke tilgængelig på “da”; vises på Engelsk.

Placering

Funktionsgruppe 2 Chassis › 42 Bremsehydraulik og -mekanik › 42.20 Parkeringsbremse — Serie 900 (modeller 9**) · Serie 902 (modeller 9**) · Serie 904 (modeller 918, 919, 924, 925, 938, 943, 957) · Serie 906 (modeller 917, 918, 924, 953)

Gælder også for motorer/gearkasser: 139 ***, 254 ***, 256 ***, 272 ***, 276 ***, 282 ***, 457 9**, 541 9**, 542 9**, 608 ***, 700 4**, 700 420, 700 421, 700 422, 700 423, 715 3**, 715 5**, 722 6**, 722 9**, 724 ***, 724 0**, 724 033, 724 044, 724 045, 724 1**, 724 103, 724 114, 724 115, 724 120, 725 ***, 725 0**, 725 035, 725 037, 725 038, 725 085, 725 1**, 739 390, 739 391, 739 395, 739 396, 739 397, 739 398, 739 399, 740 698, 743 3**, 743 4**, 743 498, 746 971, 924 9**, 924 910, 925 9**, 926 9**

GF42.20-P-1003A

Electric parking brake, basic function

10.09.2020

Model

all (CAR)

Electric parking brake, basic function

P82.10-8408-78

1

Exterior lights and electric parking brake switch group

Overview

This document contains information on:

General

Function requirements

Function

General

The electric parking brake (EFB) holds the vehicle stationary on uphill and downhill gradients even when the driver is absent.

It is activated manually via a control element or automatically according to the driving state.

Function requirements

Ignition ON (circuit 15)

Function

Combined floating brake calipers with integrated electric actuator motors are located on the rear axle.

The braking parts are held in the brake position when deenergized by a self-locking mechanical effect. The ESP® control unit actuates the left electric parking brake actuator motor and the right electric parking brake actuator motor.

When the EFB is active, the red indicator lamp lights up in the display of the instrument cluster.

When the EFB is not active, the red warning message "Risk of rolling - EFB not closed" appears in vehicles with manual transmission when the driver's door is opened.

If the red indicator lamp flashes, there is a malfunction.

Function schematics

Function schematic for electric parking brake variables

Model 118, 167, 177, 243, 247Model 213, 238, 257, 290 as of model year 2021

PE42.20-P-2500-97A

Model 223

PE42.20-P-2500-97B

Additional basic functions

Electric parking brake release, basic function

Model all (CAR)

GF42.20-P-1004A

Emergency braking, basic function

Model all (CAR)

GF42.20-P-1005A

Run-off control basic function

Model all (CAR)

GF42.20-P-1006A

Dynamometer test mode, basic function

Model all (CAR)

GF42.47-P-1013A

Control units

Electronic Stability Program control unit, basic function

Model all (CAR)

GF42.45-P-9890A

Components

Electric parking brake actuator motors, basic function

Model all (CAR)

GF42.20-P-2000A

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