RENR5042-02 31 Troubleshooting Section i02285862 ECM Will Not Accept Factory Passwords Electronic Control Module (ECM) Recommended Actions 1. Connect the electronic service tool to the service tool connector. If the ECM does not communicate with the electronic service tool, refer to Troubleshooting, “Electronic Service Tool Will Not Communicate with ECM”. SMCS Code: 1901-035 Probable Causes One of the following items may not be recorded correctly on the Caterpillar Electronic Technician (ET): 2. Troubleshoot the Cat Data Link for possible problems. Refer to Troubleshooting, “Cat Data Link Circuit - Test”. Passwords 3. Troubleshoot the CAN data link (if equipped) for possible problems.
Refer to Troubleshooting, “CAN Data Link Circuit - Test”. Serial numbers Total tattletale Reason code i02254038 Electronic Service Tool Will Not Communicate with ECM Recommended Actions 1. Verify that the correct passwords were entered. Check every character in each password. Remove the electrical power from the engine for 30 seconds and then retry. SMCS Code: 0785-035; 1901-035 Probable Causes 2. Verify that the Cat ET is on the “Factory Password” screen. Configuration for the communications adapter Electrical connectors 3. Use Cat ET to verify that the following information has been entered correctly:
Communication adapter and/or cables Engine serial number Electrical power supply to the service tool connector Serial number for the electronic control module Caterpillar Electronic Technician (ET) and related hardware Serial number for Cat ET Electrical power supply to the Electronic Control Module (ECM) Total tattletale Reason code Flash file i02279167 ECM Will Not Communicate with Other Systems or Display Modules Cat Data Link Recommended Actions Start the engine. If the engine starts, but the ECM will not communicate with Cat ET, continue with this procedure. If the engine will not start, refer to Troubleshooting, “Engine Cranks but Will Not Start”.
If the engine will not crank, refer to Troubleshooting, “Engine Will Not Crank”. SMCS Code: 1901-035 Probable Causes Wiring and/or electrical connectors Cat Data Link Configuration for the Communications Adapter 1. Access “Preferences” under the “Utilities” menu on Cat ET. CAN data link (if equipped)