CABLE GP-CONTROL 3308554 - Caterpillar

Electronic control modules contain no moving parts. Replacement of an electronic control module (ECM) can consume much time. Before you replace an ECM, follow the troubleshooting procedures in this manual in order to be sure that replacement of the ECM will correct the problem.Note: The master ECM and the slave ECM should not be interchanged in order to determine if an ECM is faulty. If the master ECM and the slave ECM are interchanged, all of the configuration data for each ECM must be transferred into the Caterpillar Electronic Technician (ET). The appropriate configuration data must then be re-entered into the appropriate ECM. Failure to program each ECM correctly may result in improper engine operation.Verify that the suspect ECM is the cause of the problem. Install a test ECM in place of the suspect ECM. Transfer the software from the suspect