Bendix Commercial Vehicle Systems EC-60 ATC STD/PREM CONTROLLERS - Manual (Page 2)

2
Delivery
(Port 2)
Supply
(Port 1)
Exhaust (Port 3)
Electrical
Connector
M-32QR ™
Modulator
M-32 ™
Modulator
COMPONENTS
The EC-60 ™ controller’s ABS function utilizes the following
components:
• Bendix
® WS-24 ™ wheel speed sensors (4 or 6,
depending on ECU and configuration). Each sensor is
installed with a Bendix Sensor Clamping Sleeve
• Bendix ® M-32 ™ or M-32QR ™ Pressure Modulator Valves
(4, 5, or 6 depending on ECU and configuration)
• Dash-mounted tractor ABS Indicator Lamp
• Service brake relay valve
• Dash-mounted trailer ABS Indicator Lamp (used on all
towing vehicles manufactured after March 1, 2001)
• Optional blink code activation switch
• Optional ABS off-road switch. (Off-road feature is not
available on all ECUs - See Chart 1.)
The EC-60 ™ controller ATC function utilizes the following
additional components:
• Traction control valve (may be integral to the service
brake relay valve or a stand-alone device)
• Dash-mounted ATC status/indicator lamp
• J1939 serial communication to engine control module
• Stop lamp switch input (may be provided using the ECU
hardware input or J1939)
• Optional ATC off-road switch
FIGURE 4 - POWER LINE WITHOUT PLC SIGNAL FIGURE 2 - BENDIX ® WS-24 ™ WHEEL SPEED SENSORS
FIGURE 3 - M-32 ™ AND M-32QR ™ MODULATORS FIGURE 5 - POWER LINE WITH PLC SIGNAL
ECU MOUNTING
Cab ECUs
Cab-mounted EC-60 ™ controllers are not protected against
moisture, and must be mounted in an environmentally
protected area.
All wire harness connectors must be properly seated. The
use of secondary locks is strongly recommended.
CAUTION: All unused ECU connectors must be covered
and receive any necessary protection from moisture, etc.
Cab ECUs utilize connectors from the AMP MCP 2.8
product family.
Frame ECUs
Frame-mounted EC-60 ™ controllers may be mounted on
the vehicle frame, but only in locations where they will not
be subjected to direct tire spray. ECU mounting bolts must
be torqued to 7.5 to 9 Nm.
CAUTION: The frame wire harness connectors must be
properly seated with the seals intact (undamaged). All
unused connector terminals must be plugged with the
appropriate sealing plugs. Failure to properly seat or
seal the connectors could result in moisture or corrosion
damage to the connector terminals. ECUs damaged by
moisture and/or corrosion are not covered under the Bendix
warranty.
Frame ECUs utilize Deutsch connectors.
90° Speed
Sensors
Straight Speed
Sensors
Sensor
Clamping
Sleeve