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Diagnostic trouble code information can be retrieved
from the Bendix
TABS-6
®
code diagnostics, or a diagnostic tool. The following
troubleshooting flow charts will help the technician isolate
the cause of the Diagnostic Trouble Code (DTC) and
confirm whether the DTC resides in the component, wiring
or connectors.
Troubleshooting should always begin by observing the
dash or trailer-mounted ABS indicator lamp during the
Bendix TABS-6 module's power-up sequence. If it is
necessary to make electrical measurements, always begin
by making measurements of the voltage and resistance at
the five (5)- or 18-pin ECU pigtail harness connector.
24
Troubleshooting Flowcharts
module by using blink
™
Troubleshooting Flowcharts
Trailer-Mounted ABS Indicator Lamp . . . . . . . Page 25
Trailer Remote Diagnostic Unit (RDU
LED Quick Reference . . . . . . . . . . . . . . . . . . . . Page 28
ABS Indicator Lamp Circuitry . . . . . . . . . . . . . Page 29
Section F: Troubleshooting the Power Supply . . . . . . . . . Page 30
Speed Sensors . . . . . . . . . . . . . . . . . . . . . . . . . Page 31
Section H: Troubleshooting the Bendix
Relay Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 32
Once the circuit DTC is found, isolate the area needing
repair by repeating the measurements at all connections
in the affected circuit towards the modulator, wheel speed
sensor, etc.
No voltage or resistance measurements are to be made on
the bulkhead connector pins of the module.
) Tool
™
WS-24
Wheel
®
™
®
BR9235
™
Modulator
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Chapters
Table of Contents
Troubleshooting
