WABCO OptiTire - Workshop Notes; Replacement and Repair

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Workshop notes
Workshop notes
11 Workshop notes
11.1 Maintenance
OptiTire does not require maintenance.
Only when the display indicates a malfunction, fault nding must be performed with diagnosis
11.2 Replacement and repair
11.2.1 Replacing an IVTM ECU with an OptiTire ECU
In principle, the OptiTire is backwards compatible to the IVTM ECU, but the following differences need
to be noted:
 Assembly: If the original IVTM retaining plate and associated 8 mm screws are used, either cap
nuts or suitable washers must be used in addition to compensate the 11 mm holes in the OptiTire
housing.
 The adapter connector (WABCO part number 894 600 001 2) should be used to connect the
original IVTM cable.
 A new Diagnostic Software is required because OptiTire is addressed by means of a UDS
diagnostic protocol (IVTM: KWP2000).
11.2.2 Replacing 1st generation external sensor with a 2nd generation
sensor
To select the correct 2nd generation external sensors, the rim shape (ET, size) is also important
alongside the 1st generation external sensors that are to be replaced. The appropriate 2nd generation
external sensor and matching PA tube can then be selected on this basis.
11.2.3 Wheel change
When changing tires, make sure that the sensors are correctly assigned and, if necessary,
reset the parameters.
If the fault message cannot be found immediately, each wheel must be checked.
Wheel with external sensor
Due to the external xation of the sensor on the wheel bolts after wheel change a new sensor is not
needed. It is only to be ensured, that after wheel exchange the sensor is tted exactly to the same
position as before.
As long as the external sensor itself is not exchanged, there is no need for new settings of system
parameters.
The external sensors are not allowed to be swapped with each other.
Make sure that the external sensor are respectively located in the original position on the
vehicle after the wheel change.
Especially with dual tires, the accurate relationship to the inner or outer wheel must be
observed.