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P166A - Restraints Deployment Communication Circuit

WARNING: This page does not describe the selected car, but rather 28 other vehicles, including the 2014 Lincoln Navigator, 2014 Lincoln MKZ, 2014 Lincoln MKX, 2014 Lincoln MKT, and 2014 Lincoln MKS. However, it is still accessible from the selected car via links, so may be relevant.
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: FUEL PUMP CONTROL MODULE .