Symptom Tree
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Alternator belt is loose |
Check the alternator belt tension. Refer to Procedure 013-021 (Belt Tensioner, Automatic – Alternator) in Section A. |
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Battery cables or connections are loose, broken, or corroded (excessive resistance) |
Check the battery cables and connections. |
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Batteries have malfunctioned |
Check the condition of the batteries. Replace the batteries, if necessary. Refer to the OEM service manual. |
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Electrical system is “open” (blown fuses, broken wires, or loose connections) |
Check the fuses, wires, and connections. Refer to the OEM service manual and the manufacturer’s wiring diagrams. |
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Alternator pulley is loose on the shaft |
Tighten the pulley. Refer to Procedure 013-005 (Drive Belt, Alternator) in Section A. |
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| Contact a Cummins Authorized Repair Facility |
Last Modified: 09-Dec-2004
