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P1652-J1850 SHORT TO GROUND (CONTINUED) For the Engine circuit diagram (Refer to 9 - ENGINE - SCHEMATICS AND DIAGRAMS) For a complete wiring diagram Refer to Section 8W. • When Monitored: • Set Condition: Possible Causes ECM (D25) J1850 SHORTED COMMUNICATION Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - Diagnostic Test 1. ECM Turn the ignition off. Disconnect the ECM harness connectors. NOTE: Check connectors - Clean/repair as necessary. Is the resistance less than 10 Ohms? Yes >> Go To 2 No >> Replace the ECM. Perform POWERTRAIN VERIFICATION TEST VER - 1 9 - 1390 ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL DR/DH |