Bendix Commercial Vehicle Systems EC-60 ATC STD/PREM CONTROLLERS - Manual (Page 32)

32
ABS/ATC WIRING
CAB ECU Wiring Harness Connectors
The in-cab EC-60 ™ controllers are designed to interface
with AMP MCP 2.8 connectors as referenced in Chart
4. Follow all AMP requirements for the repair of wire
harnesses.
All wire harness connectors must be properly seated. The
use of secondary locks is strongly advised.
CAUTION: All unused ECU connectors must be covered
and receive proper environmental protection.
Frame ECU Wiring Harness Connectors
Frame-mount EC-60 ™ controllers are designed to interface
with Deutsch connectors as referenced in Chart 4.
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.
Secondary locks must be snapped securely in place.
Follow all Deutsch requirements for the repair of wire
harnesses.
CAUTION: All unused connector terminals must be
plugged with the appropriate sealing plugs.
Frame ECU Connector Covers
Frame ECUs are provided with covers that must be removed
to permit connection of the vehicle wiring harness. The
cover can be removed by sliding the slide lock mechanism
to the unlock position.
The covers provide strain relief and connector protection of
the vehicle wire harness and will accept round convoluted
conduit with an I.D. of 19 mm.
ABS Wiring Requirements
As a matter of good practice and to ensure maximum
system robustness, always use the maximum size wire
supported by the wire harness connectors for battery,
ignition, ground, PMV, TCV, Interaxle Differential Lock and
indicator lamp circuits.
All sensor and serial communications circuits (J1587 and
J1939) must use twisted pair wiring (one to two twists per
inch). See the appropriate SAE document for additional
details.
WARNING: All wires must be carefully routed to avoid
contact with rotating elements. Wiring must be properly
secured approximately every 6 to 12 inches using UV
stabilized, non-metallic hose clamps or bow-tie cable ties
to prevent pinching, binding or fraying.
It is recommended that wires be routed straight out of a
connector for a minimum of three inches before the wire
is allowed to bend.
Battery and ground wires should be kept to a minimum
length.
If convoluted tubing is used, its I.D. must match the size of
the wire bundle as closely as possible.
CAUTION: Wire harness lengths must be carefully
selected for the vehicle. Harnesses that are too long
increase the possibility of electrical interference and wire
damage. Excess lengths of wire are not to be wound to
form coils, instead re-route, repair or replace wire harness.
Do not attempt to stretch harnesses that are too short, since
mechanical strain can result in wire breakage.
Troubleshooting: Wiring