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Possible Causes BATTERY CABLES LOW BATTERY/POOR BATTERY CONNECTION CLUTCH INTERLOCK SWITCH INPUT MECHANICAL PROBLEM SKIM CODES PRESENT STARTER MOTOR TOTALLY INTEGRATED POWER MODULE (T750) STARTER CONTROL OUTPUT CIRCUIT SHORT TO GROUND (T750) STARTER CONTROL OUTPUT CIRCUIT OPEN Diagnostic Test 1. BATTERY CABLES NOTE: Ensure there are no Active DTC’s in the ECM or TIPM. If the ECM or TIPM have Active DTC’s, repair NOTE: The battery must be fully charged before diagnosing a no crank condition. Is there evidence of problems? Yes >> Repair as necessary. Perform the ECM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING). No >> Go To 2 2. ECM POWER AND GROUND CIRCUITS Refer to CHECKING THE ECM POWER AND GROUNDS to check for proper ignition, battery and ground supply to Are the Ignition, Battery and Ground supply circuits functioning properly at the ECM? Yes >> Go To 3 Perform the ECM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING). No >> Repair as necessary. 3. SKIM CODES PRESENT Turn the ignition on. With the scan tool, read the SKIM DTCs. Does the scan tool display any SKIM DTCs? Yes >> Refer to symptom list for problems related to SKIM. Perform the ECM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING). No >> Go To 4 PM ENGINE ELECTRICAL DIAGNOSTICS - DIESEL 9 - 1415 |