CM2150 Electronic Control System – Engine Will Not Shut Off

Symptom Tree  t081

This is symptom tree
Cause Correction

Keyswitch circuit is malfunctioning

Check the vehicle keyswitch circuit. Refer to Procedure 019-064.


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 troubleshooting and repair manual.


Turbocharger oil seal is leaking

Check the turbocharger compressor and turbine seals. Refer to Procedure 010-033 in the ISB Series 6.7L Engines (CM2100 and CM2150 Common Rail Fuel Systems) Service Manual, Bulletin 4021578, or the ISC and ISL Series Engines, (CM2150 Common Rail Fuel System) Service Manual, Bulletin 4021469.

Last Modified:  24-Jul-2006