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cantcu:extflash

8HP 3rd Party Flash

These instructions are meant to put CANTCU in the best possible mode to allow for fault-free flashing on the transmission when using suitable 3rd party 8HP flashtools. CANformance Engineering will not provide any support regarding 3rd party flashers. Consult your flashtool provider regarding any support/questions/issues.

There are a couple of steps to follow before and after flashing to ensure that everything goes smoothly. It's recommended to keep CANTCU connected during flashing, as CANTCU controls the WUP (wakeup) of the transmission.

NOTE: When flashing xHP, you need to activate the checkbox Disable Pre-Flash safety checks in the xHP app. This is due to no other car modules being available on the CAN-bus when using CANTCU.

Before Flashing

  1. Disable Transmission Protocol in CANTCU
  2. Update settings
  3. Restart CANTCU
  4. Verify that CAN1/CAN2 load dropped to 0%

After Flashing

  1. Enable Transmission Protocol in CANTCU
  2. Update settings
  3. Restart CANTCU
  4. Verify that CAN1/CAN2 load is back to normal and communication with transmission is working
  5. Clear fault codes