Truck Repair

How to Use JPRO 2025 V3 Diagnostic Software to Perform CTIS Pressure Test

JPRO 2025V3 CTIS Pressure test allow you to measure the pressure of a selected axle group by pressurizing the control lines and reading the pressure in the Pneumatic Control Unit (PCU).

 

 

The CTIS Pressure Test is supported on:

✓ Dana CTIS where J1939 communications are available

 

Related Contents:

2025 JPRO Noregon Diagnostics Free Download

Noregon JPRO DLA+ 2.0 Adapter

 

Procedures:

1 Select CTIS Pressure Tests and press Enter of click the Start button.

2 The test dialog will be displayed.

3 Select the Check Pressure button to refresh the displayed data values.

4 Select the Deflate button to start deflating the tires.

a The Hold and Stop buttons will enable.

b Status will alternate between “Tires Deflating” and “Checking Pressure in Tires”.

c Monitor the displayed data values.

d Select the Hold button to pause the deflation and check tire pressure.

e Select the Stop button to stop the deflation.

 

5 Select the Inflate button to start inflating the tires.

a The Hold and Stop buttons will enable.

b Status will alternate between “Tires Inflating” and “Checking Pressure in Tires”.

c Monitor the displayed data values.

d Select the Hold button to pause the inflation and check tire pressure.

e Select the Stop button to stop the inflation.

The CTIS system will allow the tire pressures to go past preset limits and must be stopped manually.

6 When the test has completed, click the Exit button to return to the test selection dialog.

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