Symptom Tree
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Electronic fault codes are active |
For instructions on how to read active fault codes, refer to Procedure 101-007 (Electronic Controlled Fuel System) in Section 1 for fault code troubleshooting. If fault codes are active, contact a Cummins Authorized Repair Facility. |
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Idle shutdown or PTO shutdown features are activated |
Check the time limit on idle and PTO shutdowns with an electronic service tool. Refer to Procedure 101-007 (Electronic Controlled Fuel System) in Section 1. |
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Engine will not restart |
Refer to the Engine Difficult to Start or Will Not Start symptom tree. |
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Air in the fuel system |
Check for air in the fuel system. Tighten or replace the fuel connections, fuel lines, fuel tank standpipe, and fuel filters as necessary. |
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Fuel inlet restriction |
Check for fuel inlet restriction. Contact a Cummins Authorized Repair Facility. |
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Battery voltage is low |
Check the battery connections. Refer to the OEM service manual. |
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Fuel shutoff valve is closed |
Check for loose wires. Check for power to the fuel shutoff valve solenoid. |
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Engine brakes are malfunctioning |
Check the engine brake operation, adjustment, and solenoid resistance. Repair or adjust as necessary. Refer to a Cummins Authorized Repair Location. |
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| Contact a Cummins Authorized Repair Facility |
