7641h
CLAAS 7641h: TR2 (A57-2) Module 2: Engine speed sensor 1 of 2 disconnected
Issue description
The tractor's Powerboost function is limited to C and D during operation due to a disconnected Engine speed sensor 1 of 2. The system reverts to normal mode once the fault is resolved.
Check the cause
Engine speed sensor 1 of 2 connection
Wiring and harness related to Engine speed sensor 1 of 2
Module 2 functionality
Repair steps
Inspect
Check the physical connection of Engine speed sensor 1 of 2 for looseness or disconnection.
Test
Verify the integrity of the wiring and harness connected to Engine speed sensor 1 of 2.
Diagnose
Use the service manual to test the functionality of Module 2 and confirm if it is operating correctly.
Parts you might need
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