the mantenance works that checking the transmistion signal of bmu systems

actuators alternator battery bearings belt board bushings camshaft catalytic circuit clutch control converter cooling crankshaft cylinder diagnostics drivetrain ecu electronic exhaust fan filters fluid fuel gaskets gearbox hydraulic ignition injection intake lubrication maintenance motor orings overhaul piston pneumatic pulley radiator repair replacement seals sensors solenoid sprocket starter system thermostat torque transmission troubleshooting turboc turbocharger unit valve wiring