Non-Standard Tire Size; Diagnostic Trouble Code Detection - BENDIX TABS-6 Service Data

Trip Counter
The module provides a counter to record the trip mileage.
The feature is accessed through PC or hand-held
diagnostic tools.
MISCELLANEOUS MAINTENANCE
GLAD HAND MAINTENANCE
▲ NEVER POUR ANy LIQUIDS (alcohol, anti-freeze,
additives, etc.) into the glad hands. Liquids may
cause the o-rings and seals to swell, may result
in lubrication loss and leave harmful residues.
▲ Prevent nesting insects and contaminants from
entering and blocking the air hoses. Check that
screens are present and clean.
▲ Drain the trailer air tanks a minimum of every six
(6) months.
Liquids/Contamination can cause TRAILER AIR
BRAKE FAILURE and/or the INABILITy TO RELEASE
the trailer parking brakes.
BENDIx ABS SySTEM POWER-UP CHECK
®
At power-up the trailer ABS indicator lamp should
briefly illuminate "ON" as a bulb check.
If the indicator lamp does not illuminate at power-up,
the ABS system may not be powered, or the bulb may
need to be replaced. Service the trailer ABS system.
▲ If the lamp remains "ON" after power-up there
may be active Diagnostic Trouble Codes (DTCs).
Service the trailer ABS system. (To ensure full
ABS/TRSP functionality, service as soon as
possible.)
Other Important Practices:
▲ Follow all standard industry safety practices.
▲ Sealant for ABS Fittings: Use pre- or hand-applied;
Never PTFE tape (Voids Bendix ABS Warranty).
▲ Use open-ended clips (never cable ties) to hold
sensor leads to jounce lines.
▲ Drain the trailer air tanks a minimum of every six
(6) months.
▲ Disconnect the electrical connectors from the ABS
Controller when welding on the trailer.
Service Interval
The Bendix TABS-6 module provides a feature that can
® ™
be used to indicate a service interval for the trailer. The
service interval can be accessed via PC or hand-held
diagnostic tools. If configured, the Bendix TABS-6 module
can flash the indicator lamp when the vehicle is at standstill
to indicate when the service interval has been exceeded.
Additional Components
Default
Sensors Modulators
-
2S/1M
-
2
Dolly Axle
2
2S/1M
-
Axle
-
2
CHART 4 – PREmIUm BEndIx
COnFIGURATIOn mATRIx

NON-STANDARD TIRE SIZE

The module allows for tire rolling radius and tone ring
tooth count parameters to be set for each axle using a
diagnostic tool. These adjustments may be necessary for
the module to accurately calculate the vehicle velocity and
odometer mileage. Wheels of the same axle must be set
to the same rolling radius and tone ring tooth count. In
most cases, these parameters are set by the trailer OEM
and do not need to be adjusted. In the case of a service
replacement unit, always check that these parameters are
set to match the vehicle.
The tire-rolling radius is defaulted to 500 revs/mile and can
be adjusted from 300 to 700 revolutions per mile. Refer
to the manufacturer's tire specification for correct values.
Tone ring tooth count is defaulted to 100 teeth and can be
set from 60 to 140 teeth.

DIAGNOSTIC TROUBLE CODE DETECTION

The Bendix TABS-6 module contains self-testing diagnostic
circuitry that monitors the ABS components and wiring.
When the module senses an erroneous system condition,
it activates the external trailer-mounted ABS indicator lamp,
disables all or part of the affected ABS functions, and it
stores the DTC code in memory, even when the power is
removed. The module also uses PLC communications to
send the system status to the towing vehicle.
For some trouble codes, the Bendix TABS-6 module will
automatically reset ("self-heal") the active diagnostic
trouble code when the error is corrected (e.g. when a
wheel speed sensor is re-aligned). However, repeated
occurrences of a given trouble code can cause the code to
"latch" - that is, be retained as active, even if the condition
is only intermittent. Once the code is latched, a manual
reset will be necessary. Technicians can use these latched
codes to assist them in troubleshooting intermittent errors.
After the problem is repaired, trouble codes can be reset
using blink code diagnostics or with a diagnostic tool.
Auto-Configuration
- 2S/1M (Dolly-Axle)
1 to 2S/2M (Side)
1 to 4S/2M (Side)
2 to 4S/3M (Side/Axle)
- 2S/1M (Axle)
1 to 2S/2M (Axle)
1 to 4S/2M (Axle)
TABS-6 mOdULE AUTO-
® ™
9