Symptom Tree
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Vehicle is in gear |
Put the vehicle in neutral. |
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Fuel door is open or other vehicle interlock systems are active |
Close the fuel door and check other interlock systems. Refer to the OEM service manual. |
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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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Battery voltage is low |
Check the batteries and the unswitched battery supply circuit. Refer to the OEM service manual. |
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Keyswitch circuit is malfunctioning |
Check the vehicle keyswitch circuit. Refer to the OEM service manual. |
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Starting motor is malfunctioning or starting motor is not correct |
Check the starting motor operation. Compare the starting motor with the engine and vehicle specifications. Refer to the manufacturer’s instructions. |
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Starting motor pinion or ring gear is damaged |
Remove the starting motor, and inspect the gear. |
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Crankshaft rotation is impaired |
Check the crankshaft for ease of rotation. Refer to a Cummins Authorized Repair Facility. |
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| Contact a Cummins Authorized Repair Facility |
