SEAL 2395672 - Caterpillar

to replacement of the module, ensure that the replacement is necessary. The module is seldom the cause of a fault. Always check for power at the module. During operation, the engine start switch supplies the system voltage. The system voltage is supplied through contacts 1 and 21 of the harness .
Turn the engine start key into the OFF position. Turn the battery disconnect switch into the OFF position. Disconnect the harness from the module.
Make sure that the replacement has the correct part number.
Install the replacement module.
Connect the harness to the module.
Turn the battery disconnect switch and the key start switch to the ON position.
Perform setup procedures.Reference Systems Operation, "System Setup Operation".
Calibrate the system.Reference Systems Operation, "Calibration".
Zero the system.Reference Systems Operation, "Additional Key Functions".
Check the machine to ensure that the new module is operating properly.