TRANSMISSION ARRANGEMENT 3P4376 - Caterpillar

the ECM is replaced, ensure that replacement is absolutely necessary. The ECM is seldom the cause of a diagnostic code. Always check that power is available to the ECM. Battery voltage is required between contacts J2-1 and J2-2 of the machine harness connector for the ECM. Continue ONLY if all other attempts to isolate the problem have failed.See Disassembly and Assembly, RENR5555, "Electronic Control Module (ECM) - Remove and Install" for additional information.Note: When possible, manually record the programmable parameter setting for the machine.
Turn the disconnect switch and the key start switch to the OFF position. Disconnect the machine harness from the ECM.
Remove the ECM.
Make sure that the replacement ECM is the correct part number.
Connect the machine harness to the ECM.
Install the replacement ECM.
Flash the appropriate software into the ECM. See Testing and Adjusting, "Electronic Control Module (ECM) - Flash Program".
Manually enter the programmable parameter setting. If the parameter settings are not available from the previous ECM, enter the PIN.
Cycle power to the key start switch in order to load the default settings.
Perform system calibrations.
Joystick Forward/Neutral/Reverse calibration
Joystick Steering calibration
Deceleration Pedal Sensor calibration
Service Brake Pedal Sensor calibration
Pump and Motor Solenoid calibrationNote: Performance will be affected if ANY of the calibration procedures are omitted. Perform all of the calibration procedures.