Symptom Tree t081
Cause | Correction |
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Keyswitch circuit is malfunctioning |
Check the vehicle, equipment, or vessel keyswitch circuit. Refer to Procedure 019-064 in Troubleshooting and Repair Manual, CM850 Electronic Control System, ISC and ISL Engines, Bulletin 4021416, or Procedure 019-064 in Troubleshooting and Repair Manual, ISC, QSC8.3 and ISL Engines, Bulletin 3666271. |
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Starting aid is malfunctioning |
Check for correct operation of cold-starting aid. Refer to Procedures 005-008 and 010-029. |
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Turbocharger oil seal is leaking |
Check the turbocharger compressor and turbine seals. Refer to Procedures 010-033. |
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Engine is running on fumes drawn into the air intake |
Check the air intake ducts. Locate and isolate the source of the fumes. Repair as necessary. Refer to the OEM service manual. |
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Electronic control module (ECM) is malfunctioning |
Replace the ECM. Refer to Procedure 019-031 in Troubleshooting and Repair Manual, CM850 Electronic Control System, ISC and ISL Engines, Bulletin 4021416, or Procedure 019-031 in Troubleshooting and Repair Manual, ISC, QSC8.3 and ISL Engines, Bulletin 3666271. |