Write Program and Calibration to TCM using ALLISON TCM Reflash (PCCS) Software (Offline)

Write Program and Calibration

Figure 1.1 - Key Ability:20

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Connecting to TCM:

1). Run "winrw32.exe" through shortcut on desktop.
2). Once opened, click on Options - Comm Interface menu.

Figure 1.2 - Options (Comm Interface)

3). Select your Comm Device and Comm Protocol, for example: I was using Nexiq USB-Link (250K CAN/ J1939).

Figure 1.3 - Select Interface (Nexiq USB-Link)

4). Click on TCM Info menu, then Display Information. It will pull up all TCM Calibration Info, save or print it.

Figure 1.4 - TCM Info (Display Information)

Figure 1.5 - TCM Info/ Gen 5th

5). Click on Calibration menu, then Read from TCM to save current Calibration on TCM. Wait the processes of Reading calibration from TCM and Reading power off data until 100%, then Save it.

Figure 1.6 - Calibration (Read from TCM)

Figure 1.7 - Reading calibration from TCM

Figure 1.8 - Reading power off data

Figure 1.9 - Calibration Read (Save)

6). Click on Dump menu, then Entire Flash to save flash dump file of the entire TCM. Wait the process of Dumping entire flash from TCM until 100%, then Save it.

Figure 2.1 - Dump (Entire Flash)

Figure 2.2 - Dumping entire flash from TCM

How to Write Program and Calibration to TCM?

1). Write Calibration

→Click on "Calibration - Write to TCM", and load your Calibration Files (Step No.5).

2). Write Program

→Click on "Program - Erase TCM"

→Click on "Program - Write to TCM", and load your Program Files (Step No.6).

NOTE: you need to copy "keygrace.ifo" file to any folder you want to use to write your calibrations. The default folder is C:\Program Files\Allison Transmission\Allison TCM Reflash (PCCS)\Cal\

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