WABCO TP0735, Руководство по установке

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Tire Inflation Communication System Troubleshooting
5 Tire Inflation Communication System Troubleshooting
ECUs 400 500 105 0 and 400 500 106 0 are the only trailer ABS valves that have Tire Inflation
Communication functionality.
The first step taken when troubleshooting the Tire Inflation Communication System is to ensure that the
system is electrically connected correctly. Refer to Figure 10.
If the Tire Inflation system status lamp is not present or is not functioning, then the Tire Inflation
Communication System will not function.
TIO files enable additional functionality such as tire monitoring, for the InfoLink-capable ECUs. If a TIO
needs to be replaced or removed, contact the WABCO North America Customer Care Center at
855-228-3203.
This troubleshooting section is based on the use of TOOLBOX™ Software version 12 or higher. If you have
an earlier version of TOOLBOX™ Software, visit https://wabco.snapon.com .
Fig. 9
4012497c
Condition
Experienced Action To Take Troubleshooting Details
MTIS LED Illuminates with
a Dim Glow All the Time Confirm the MTIS LED is an incandescent
or Meritor LED with resistor part number
31263-20.
Replace light as necessary.
Ensure light is grounded correctly.
WABCO Tire
Inflation Communication
System is not Broadcasting
a “Low Tire Pressure”
Message When There is a
Fill Event and the MTIS
Light is Illuminated Correct installation needs to be verified. Confirm WABCO MTIS Communication System is installed per
Figures 2 and 10.
Make sure all electrical connections are fully seated.
ECU valve should audibly click during its
power-up self-test.
Ensure that 12 volts is present at pin A-3 and (Ground Pin) on the ECU
power connector.
Check continuity of the power/I/O cable.
Check diode on pre-installed MTIS cable pigtail. Place the volt/ohm meter
to “Diode”. Place red lead on single male pin. Place the black lead on the
dual tab connector. Continuity should be observed on the volt/ohm meter.
Switching the leads in the opposite direction, an “Open” should be
displayed on the volt/ohm meter. Refer to Figure 11.
Confirm part number 400 500 105 0 or
400 500 106 0 is installed.
Connect TOOLBOX™ Software 12 or higher and part number can be
viewed on the Trailer ABS main screen.
Confirm T_0109b.tio has been installed to
the ECU.
To access the Notebook section of the ECU, perform the following:
1. Select Modify on the top toolbar of the Trailer ABS TOOLBOX
application.
2. Select Notebook to confirm T_0109b.tio can be viewed in the
“Service Information” area.
3. If T_0109b.tio is not visible in the Notebook, go back to Loading TIO
Files section of this publication.
“Low Tire Pressure”
Message is Being
Broadcasted All the Time Correct installation needs to be verified.
Make sure all electrical connections are fully seated.
Confirm the MTIS LED is an incandescent
or Meritor LED w/resistor part number
31263-20.
Replace light as necessary.
Ensure light is grounded correctly.
MTIS LED Does Not
Illuminate During a Fill
Event Correct installation needs to be verified. Confirm MTIS system is installed per MM14P.
Confirm MTIS LED is not burned out.
Replace MTIS LED as required with Meritor part number 31263-20.
The Parameter File
T_0109b.tio Has Been
Successfully Downloaded
to the ECU, but MTIS
Message is Not Being
Broadcast Confirm T_0109b.tio is visible in the
“Notebook” section of TOOLBOX™
Software 12 or higher.
Contact the WABCO Customer Care Center at 855-228-3203.
Check continuity for the 449 324 XXX X D1 cable from the 8-pin
connector (Pin 5) to the 2-pin sensor socket (C1). Refer to Figure 10.
Confirm WABCO MTIS communication system is installed per
illustration Figures 2 and 10.