CLAAS 7640h – Claas Tr2 A57 2 Transmission Module: Power Boost Calibration Failure

The Power Boost calibration has failed, and Power Boost is only active in gears C and D. The cause is a bad measurement, specifically with Engine speed sensor 1 of 2 being disconnected.

1. 1

   Engine speed sensor 1 of 2

2. 2

   Connection to Engine speed sensor 1 of 2

3. 3

   Calibration of the Power Boost

1. 1

   Check

   Verify the connection to Engine speed sensor 1 of 2.

2. 2

   Recalibrate

   Perform the recalibration of the Power Boost as specified in the service manual.