SECTION 12: BRAKE AND AIR SYSTEM
32
PA1621 Maintenance Manual All Series | January 2017
3. Push the sensor completely inside the
spring clip until it is in contact with the tooth
wheel. Ensure mounting is rigid, as it is an
important criterion for adequate sensor
operation.
NOTE
This installation should be of the "press fit"
type.
31.4.1 Spring clip
The spring clip retains the sensor in its mounting
bracket close to the toothed pulse wheel. The
gap between the sensor end and teeth is set
automatically by pushing the sensor in the clip
hard up against the tooth wheel, and the latter
knocks back the sensor to its adjusted position
(Figure 34).
FIGURE 34: SPRING CLIP 12161
Maintenance
The spring clip requires no specific
maintenance.
MAINTENANCE
ABS & ELECTRONIC STABILITY
CONTROL SYSTEMS
Check the proper functioning of ABS and ESC
systems at the intervals specified by the
Lubrication And Servicing Schedule in Section
24: LUBRICATION & SERVICING. To do so,
perform the “Component Test” using Bendix
ACom Diagnostics software.
Bendix ACom Diagnostics software is
available for download at www.bendix.com.
32. BENDIX AUTOMATIC TRACTION
CONTROL (ATC) – ELECTRONIC STABILITY
CONTROL (ESC)
In addition to the ABS function, vehicle is
equipped with a Traction Control System (TCS)
feature. This feature is provided by the Bendix
EC-60 advanced controller. Bendix refers to this
feature as Automatic Traction Control (ATC).
Bendix ATC can improve vehicle traction during
acceleration, and lateral stability while
accelerating through curves. ATC utilizes
Engine Torque Limiting (ETL) where the ECU
communicates with the engine’s controller
and/or Differential Braking (DB) where
individual wheel brake applications are used to
improve vehicle traction.
The EC-60 advanced model controller also
provides an ABS-based Electronic Stability
Control (ESC) feature. Bendix refers to it as
ESC Electronic Stability Control.
The Bendix ESC system is an ABS-based
stability system that enhances vehicle stability
by both reducing engine throttle and by applying
vehicle braking based on actual vehicle
dynamics
ESC stability system consists of Yaw Control
(YC) and Roll Stability Program (RSP) features.
CAUTION
Even with ESC-equipped vehicles, the driver
remains responsible for ensuring vehicle
stability during operation.
32.1 COMPONENTS
32.1.1 The EC-60
TM
controller’s ABS func-
tion utilizes the following components:
Six (6) Bendix
® WS-24
TM
wheel speed
sensors. Each sensor is installed with a
Bendix Sensor Clamping Sleeve;
Five (5) Bendix
® Pressure Modulator
Valves (M-40QR);
Dash-mounted vehicle ABS Indicator
Lamp;
Service brake relay valve;
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