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Home >> Lincoln >> 2018 >> MKZ Select, AWD >> Repair and Diagnosis (Single Page) >> Steering >> Electronic Steering >> EPAS Guided Routine >> DTC/Symptom Selection >> Symptom Chart - Steering System and NVH >> Unable To Replicate Customer's Intermittent Assist Concern During A Test Drive

Unable To Replicate Customer's Intermittent Assist Concern During A Test Drive

Possible Source Action
  • If lost communication or voltage DTCs exist in the PSCM or other vehicle modules, possible sources can be:
  • Fuse(s)
  • Wiring, terminals or connectors
Go to PINPOINT TEST BX 
  • If DTCs other than lost communication or voltage exist in the PSCM or other vehicle modules, the possible sources can be:
  • Module internal fault - PSCM
  • Module internal fault - other modules
  • If no DTCs are present in the PSCM or other vehicle modules, the concern could be indicated by a TSB or a SSM.
  • TSBs existing for concern
  • GSBs existing for concern
  • SSMs existing for concern
  • FSAs existing for concern