10
13. BENDIX
®
ABS FLEX
™
PROGRAM
The BendixABS Flex program usesAuxiliary Design
Language(ADL)toallowcustomizedauxiliaryfunctionsto
be carried out by the Bendix
®
TABS‑6
™
Adv MC module.
Programs developed in the ABS Flex program may be
downloadedattheproductionline,orintheeld,tocontrol
non‑braking functions of the trailer.
For example, the ABS Flex program can potentially com‑
municatethestatusof:tire inationand/ortemperature;
reefertemperature;loadpresence;sliderpinposition;lift
axleposition;proximity/reversealarm;andvehicleweight.
ABS Flex programs monitor the auxiliary I/Os and/or
theSAEJ1939(CAN)andSAEJ2497(PLC)datalinks.
Contact your Bendix Account Manager to discuss an ABS
Flex program for your vehicle(s).
14. CUSTOMER SCRATCH PAD
The TABS‑6 Adv MC module has a Customer Scratch Pad
feature which allows the customer, or end‑user, to store up
to1,008bytesofinformation.Thisinformationcanthenbe
read using the Bendix
®
ACom
®
diagnostic software (version
6.1andhigher).
15. POWER‑UP SEQUENCE
At power‑up, the TABS‑6 Adv MC module performs a series
of self‑checks that can assist a technician to determine the
ABSsystemstatusandconguration.
Trailer ABS Indicator Lamp
Atpower-up,withnodetectedDiagnosticTroubleCodes
(DTCs),the trailerABS 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 orTRSP-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.
IfaPLC-readytowingvehicleandtrailerarepoweredatthe
same time, the TABS‑6 Adv MC 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 MC module activates a
modulator chuff test. This electrical and pneumatic ABS
modulator test can help the technician identify problems
with modulator 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 MC module will not perform a modulator chuff
testwithanactiveABSDTC.
*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-mountedTrailer
ABSIndicatorLamp
(PLCDetected)*
Dash-mountedTrailer
ABSIndicatorLamp
(PLCNotDetected)
Trailer‑mounted ABS
IndicatorLamp
ABS System
Status Indicators
ON
OFF
1.0
ON
OFF
3.0
4.0
5.02.0
ON
OFF
6.0 (sec.)
FIGURE 9 ‑ TRAILER ABS LAMP POWER-UP SEQUENCE
16. ODOMETER FUNCTION
Odometer
The TABS‑6 Adv MC 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.
Thisfeature isaccurate towithin 0.62 milesper power-
upandwilltypicallystoremileageupto1,000,000miles.
The mileage can be displayed using PC diagnostics, a
Bendix
®
Trailer Information Module, Bendix
®
Trailer Remote
DiagnosticUnit(TRDU
™
), or through blink codes.
Whenever the TABS‑6 Adv MC 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 MC module provides a counter to record
the trip mileage. The feature can be accessed using PC
DiagnosticsortheBendix
®
Trailer Information Module.
Service Interval
The TABS‑6 Adv MC 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
theTrailerInformationModule.Ifcongured,theTABS-6
Adv MC module can ash the indicator lamp when the
vehicle is at standstill to indicate when the service interval
has been exceeded.