Bendix Commercial Vehicle Systems TABS-6 ADVANCED SINGLE CHANNEL - Manual (Page 10)

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13. BENDIX ® ABS FLEX ™ PROGRAM
The Bendix ABS Flex program uses Auxiliary Design
Language (ADL) to allow customized auxiliary functions
to be carried out by the Bendix ® TABS‑6 ™ Adv module.
Programs developed in the ABS Flex program may be
downloaded at the production line, or in the field, to control
non‑braking functions of the trailer.
For example, the ABS Flex program can potentially com‑
municate the status of: tire inflation and/or temperature;
reefer temperature; load presence; slider pin position; lift
axle position; proximity/reverse alarm; and vehicle weight.
ABS Flex programs monitor the auxiliary I/Os and/or
the SAE J1939 (CAN) and SAE J2497 (PLC) data links.
Contact your Bendix Account Manager to discuss an ABS
Flex program for your vehicle(s).
14. CUSTOMER SCRATCH PAD
The TABS-6 Adv module has a Customer Scratch Pad
feature which allows the customer, or end‑user, to store up
to 1,008 bytes of information. This information can then be
read using the Bendix ® ACom ® diagnostic software (version
6.1 and higher).
15. POWER‑UP SEQUENCE
At power‑up, the TABS‑6 Adv module performs a series of
self‑checks that can assist a technician to determine the
ABS system status and configuration.
Trailer ABS Indicator Lamp
At power-up, with no detected Diagnostic Trouble Codes
(DTCs), the trailer ABS indicator lamp will illuminate for
approximately two (2) to six (6) seconds as a bulb check
and then turn off. See Figure 9.
If any active ABS‑ or TRSP‑related diagnostic codes
are present, the trailer ABS indicator lamp will remain
illuminated.
For non-ABS or TRSP-related DTCs, such as auxiliary
functions, at power‑up the trailer ABS indicator lamp will
turn on for approximately six and a half (6.5) seconds as
an extended bulb check and then turn off.
If a PLC-ready towing vehicle and trailer are powered at
the same time, the TABS‑6 Adv module will also trigger a
bulb check on the dash‑mounted trailer ABS indicator lamp.
Modulator Chuff Test at Power‑Up
At power‑up, the TABS‑6 Adv module activates a modulator
chuff test. This electrical and pneumatic ABS modulator
test can help the technician identify problems with modula‑
tor installations and/or wiring.
With brake pressure applied, a properly installed modulator
will cause two rapid audible chuffs of air pressure. The
TABS‑6 Adv module will not perform a modulator chuff test
with an active ABS DTC.
*Some vehicle manufacturers may illuminate the trailer ABS
indicator lamp at power-up regardless of whether a PLC
signal is detected from the trailer or not. Consult the vehicle
manufacturer’s documentation for more details.
Power
Application
Dash-mounted Trailer
ABS Indicator Lamp
(PLC Detected)*
Dash-mounted Trailer
ABS Indicator Lamp
(PLC Not Detected)
Trailer‑mounted ABS
Indicator Lamp
ABS System
Status Indicators
ON
OFF
1.0
ON
OFF
3.0 4.0 5.0 2.0
ON
OFF
6.0 (sec.)
FIGURE 9 ‑ TrAiler ABS lAmp power-up Sequence
16. ODOMETER FUNCTION
Odometer
The TABS‑6 Adv module includes an odometer function
to provide a means of storing the accumulated mileage of
the vehicle. The mileage is computed by using information
received from the vehicle wheel speeds sensors.
This feature is accurate to within 0.62 miles per power-
up and will typically store mileage up to 1,000,000 miles.
The mileage can be displayed using PC diagnostics, a
Bendix ® Trailer Information Module, Bendix ® Trailer Remote
Diagnostic Unit (TRDU ™ ), or through blink codes.
Whenever the TABS‑6 Adv module is towed using a pre‑
1997 tractor (with no constant power supplied to the trailer),
no information about mileage will be stored during that
time, and the mileage can be considered out‑of‑calibration.
Trip Counter
The TABS‑6 Adv module provides a counter to record
the trip mileage. The feature can be accessed using PC
Diagnostics or the Bendix ® Trailer Information Module.
Service Interval
The TABS‑6 Adv module provides a feature that can be
used to indicate a service interval for the trailer. The service
interval can be accessed using PC diagnostics or the Trailer
Information Module. If configured, the TABS-6 Adv module
can flash the indicator lamp when the vehicle is at standstill
to indicate when the service interval has been exceeded.