
4
FIGURE 5 - EC-17
™
ANTILOCK TRACTION CONTROLLER SYSTEM WIRING SCHEMATIC
Note: M -21
™
and M-22
™
modulators are
shown in the diagrams in this document —
newer model M-30
™
, M-32
™
and or M-32QR
™
modulators are used on many vehicles.
Earlier modulators (M -21
™
, M -22
™
, or
M -30
™
) may be replaced by M-32
™
or M-32QR
™
modulators - except for front axle use where
there is not a quick release valve (e.g. a
Bendix QR-1
®
quick release valve) and then
only M-32QR
™
modulators are permissible.
We do not recommend replacing M-32
™
or
M-32QR
™
modulators with earlier modulators.
Note: WS-20
™
wheel
speed sensors are
shown in this document
— newer model WS-24
™
wheel speed sensors are
used on many vehicles.
WS-24
™
wheel speed
sensors may be used to
replace WS-20
™
wheel
speed sensors. We do
not recommend replacing
WS-24
™
wheel speed
sensors with WS-20
™
wheel speed sensors.
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