Thanks for all your tips. They have been helpful . just and update.
The machine is going forward but with such heaviness, not able to get full strength.
On reverse or going backward, the machine is moving excellently.
Since it is the same mechanism involved in reverse and forward, I checked the pressure switch forward:
1- Machine running ie the engine running, clutch disengaged (maintained support) and direction selector walk in the ON-forward position.
- The pressure switch unplugged, a multi-meter checked for continuity:
Result: There is continuity. That makes us believe the pressure switch to forward gear is in good condition
The harness side from computer: the two conductors gives me a continuity to ground while I expected only one wire was supposed to..
I did the same for the pressure switch at reversing it. It worked as I thought.
And I tried to exchange, intervert, switch the circuit of these pressure switches: pressure switch forward connected to reverse and vice versa. The machine does not move, neither forward nor backward.
Therefore, I concluded the fault is on the electrical or electronic circuit or directly into the computer itself.
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