STABILITY MODULE
INSTALLATION/SERVICE
GUIDE (L31288W)
TM
2S/1M ABS Configuration with Stability
Module (Single or Multi-Axle Trailers)
Recommended speed sensor wheel locations are
shown in the figures below.
Sensor (S1A) should be installed on Road Side.
Sensor (S1B) should be installed on Curb Side.
Make sure sensors are pushed firmly against the
exciter ring.
Note:
For dollies and single axle trailers, Haldex
recommends “A8 ECU Configuration”.
Note:
Any non-sensed axle can be utilized as a
lift axle.
*
Note:
The pneumatic tube between Stability
Module Port 2 and the ABS Control Port 4
should be no longer than 80” (2 m) in total
length for a 3/8-inch diameter tube. Refer
to Page 13 for details on the pneumatic
connections of the Stability Module.
Legend
Air Hose Line:
Modulator Valve:
Stability Module:
Speed Sensors: S1A, S1B
21
ITCM
S1B
S1A
21
S1B
S1A
Tri-Axle
Curb
----- 2S/1M -----
(Air or Spring Suspension)
Road
S1B
S1A
21
Tandem Axle
Curb
(Air Suspension)
Road
----- 2S/1M -----
S1B
S1A
21
Tandem Axle
Curb
(Spring Suspension)
Road
----- 2S/1M -----
21
Road
Curb
----- 2S/1M -----
S1B
S1A
21
SM
Single Axle
(Air or Spring Suspension)
STABILITY MODULE
INSTALLATION/SERVICE
GUIDE (L31288W)
STABILITY MODULE
INSTALLATION/SERVICE
GUIDE (L31288W)
TM
TM
SM
SM
SM
SM
SM
SM
SM
SM
*
*
*
*
Page 16
