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Home >> Ford >> 2021 >> Expedition XL, RWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Memory Modules >> Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid) >> Diagnostic Trouble Code (DTC) Charts And Descriptions >> P166A - Restraints Deployment Communication Circuit

P166A - Restraints Deployment Communication Circuit

DTC DESCRIPTION P166A - RESTRAINTS DEPLOYMENT COMMUNICATION CIRCUIT

Description:  This DTC sets when the PCM detects an open or short in the IES circuit.
Possible Causes: 
  • IES circuit open
  • IES circuit short to ground
  • IES circuit short to voltage
Diagnostic Aids:   
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to Pinpoint Test KC.