Installation Guide - Dana Corporation

Troubleshooting
Troubleshooting
Troubleshooting Introduction
The system identifies certain conditions and reports them via
the trailer mounted warning lamp. In normal mode, the operator
is informed whenever a tire is low enough to require service
(typically 10%) or there is a fault in the system. For
troubleshooting, additional information can be obtained either
through blink-codes, or through use of service tools connected
to the diagnostic connector.
Blink Code Diagnostics
Blink codes provide a means to determine what service codes
exist without requiring any special tools. Apply power to system.
To activate blink-codes, remove the weather cap from the
diagnostic connector and electrically short pins "A" and "E"
together until warning lamp changes state (approximately 5
seconds). The pins to be shorted can be easily identified by
the interconnecting slot in the shell, allowing convenient use
of a coin or screwdriver tip to short the pins together. The
warning lamp will turn on for 5 seconds upon entering the
diagnostics mode, and will then flash a 2 digit service code.
See the Warning Lamp Status Chart (Diagnostic Mode) for
service code descriptions. Should more than one fault exist,
there will be a 2 second pause between each flash sequence.
If no faults are present or all the faults have been flashed, the
system will flash a code 5-5.
It is not necessary to short the diagnostic connector to obtain
blink-codes when a service tool is used for troubleshooting.
Follow the instructions included with the service tool.
Blink Code Description
Low Tire - Low tire pressure is indicated by a solid warning
lamp. This service code will be set when one or more tire
pressures drops a predetermined amount (typically 10%)
below the target pressure. Inspect the tires to verify there is
no tire damage. This fault can also be set as a result of a large
line leak.
System Fault - A system fault is set when a problem has been
detected with the system. System service codes include
memory reset, internal atmospheric sensor fault, or other
pneumatic faults.
Code 5-5 - This indicates the end of the service code list. If
this is the only code received, then no service codes exist.
Short Pins A and E Until Lamp
Changes State (approximately 5 seconds)
and Release to Access Blink Codes
F B
A
E
D
C
218UX034
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