BENDIX SD-13-47671 Manuel D’Utilisation

The Bendix

®

 TABS‑6

™

 Adv module uses wheel speed 

sensors, modulator relay valve (MRV); and an ECU to

optimize the contact between the tires and the road surface 

during a braking event where excessive wheel slip — or 

wheel lock‑up — is detected.
When a situation is detected where the system needs to 

intervene, the ECU will activate the MRV to apply controlled

brake pressure at the wheel ends.
The TABS-6 Adv module ECU is able to modulate the brake

pressure with greater speed and accuracy than a driver.

During normal braking the TABS-6 Adv module functions

as  a  standard  relay  valve.    If  the  ECU  does  not  detect

excessive wheel slip, it will not activate the ABS system, 

and the vehicle will stop with normal braking.

Axle control uses the modulator relay valve to control the 

wheels at both ends of a given axle (or multiple axles in 

cases where the MRV is controlling several axles).
In the case of braking surfaces with poor overall traction 

(e.g. roads that are worn, slippery, or are made of loose 

gravel) — or braking surfaces with areas of poor traction 

(e.g. asphalt roads with patches of ice) — axle control ABS 

interventions will maintain the wheel that is not slipping at 

just under the speed that will lock the wheel.  The system 

permits the other wheel (that is experiencing slippage) 

temporary periods of wheel‑lock during the intervention.
Axle control should not be used on 5th wheel dollies or 

steerable axles.

When intervening on regular traction road surfaces, a 

system configured for axle control performs similar to a

side control, two‑modulator system.

The Bendix

®

 TABS‑6

™

 Adv module is designed to react 

in a fail-safe manner in the event of a system Diagnostic

Trouble Code (DTC). For example, if the ECU detects that

a sensor is not responding, an ABS system DTC will be

set and the TABS‑6 Adv module will illuminate the trailer 

ABS indicator lamp and revert to a fail‑safe mode where 

some, or all, Advanced ABS functions (including TRSP) 

may not function. Even in cases where the ABS system

is completely disabled, the standard pneumatic brake 

function of the vehicle will still be available, but without the 

benefits of ABS. The TRSP feature is also disabled with an

active ABS system diagnostic code.  If the indicator lamp 

is illuminated, always have the ABS system serviced at the 

earliest opportunity. 

3/4" NPT Supply

Port 1

Four 3/8" NPT Delivery 

Ports 21

(To Brake Chambers)

3/8" NPT Control Port 

with Integral Filter

3/8” NPT Load Port 42

for Air Suspension

(Plugged for Non-Air Suspension or Spring 

Suspension Sensor Vehicles)