Troubleshooting: System Schematics (continued)
4S/2M - AXLE CONTROL
WS Sensor | A | Brake Light Power | D | C | |
"SAR" | |||||
B | Ignition Power | ||||
A | E | ||||
| C NC | ||||
| D Warning Lamp |
| B | ||
E Ground
Right -
“Curb-Side”
WS Sensor
"SR"
CONTROL
LINE
|
| Trailer |
| Chassis Harness | |
CONNECTOR |
|
|
Ground | SUPPLY | |
| LINE | Spring Brake |
Ignition |
| Valve |
|
| |
Power |
|
|
Brake Light |
|
|
Power |
|
|
Full Trailer |
| |
|
| ABS |
Trailer ABS | ||
CONNECTOR | Pigtail Harness | |
“MOD2” | TABS | |
Bendix® | ||
BR9235™ | ||
“MOD1” | ||
Modulator | ||
Relay Valve | ||
| Trailer | |
| ABS | |
| Module |
ABS Light |
| Left - |
WS Sensor | |
"SAL" | "SL" |
Installation Guidelines for the
o MOD1
o MOD2 (Bendix® BR9235™ Modulator Unit) controls the wheels of an additional axle(s).
o SL & SR (Primary Sensors) senses wheels on the primary axle (always on the ground) that MOD1 controls, and are connected to the dedicated
o SAL & SAR (Additional Sensors) senses the wheels that MOD2 controls, and are connected to the
o For lift axle applications, MOD2 controls the wheels for the
4S/2M - SIDE CONTROL
WS Sensor | WS Sensor |
"SAR" | "SR" |
Right - “Curb-Side”
A Brake Light Power | D | C |
B Ignition Power | ||
C NC | A | E |
D Warning Lamp |
| B |
E Ground |
|
|
| CONTROL |
|
| |
| LINE |
|
| |
| Trailer | Trailer ABS | ||
| CONNECTOR | |||
Chassis Harness | Pigtail Harness | |||
| ||||
CONNECTOR |
|
|
| |
Ground | SUPPLY |
|
| |
| LINE |
|
|
Ignition
Power
Brake Light
Power
Spring Brake
Valve
Bendix®
BR9235™
Modulator
Relay Valve
“MOD2” |
TABS | “MOD1” |
|
Trailer
ABS Module
Dual Axle Trailer |
| ABS Light |
| ABS |
|
Left - | WS Sensor | WS Sensor |
| ||
| "SAL" | "SL" |
Installation Guidelines for the
o MOD1
o MOD2 (Bendix® BR9235™ Modulator Unit) controls the right
o SAL & SAR (Additional Sensors) are connected to the
o For lift axle applications, SAL & SAR (Additional Sensors) senses the wheels of the
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