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Home >> Ford >> 2011 >> Focus S, Standard >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Powertrain DTC Charts & Descriptions - DTC P0600 Through DTC P164A - (Except Diesel & Hybrid) >> DTC P0691: Fan 1 Control Circuit Low

DTC P0691: Fan 1 Control Circuit Low

P0691 - FAN 1 CONTROL CIRCUIT LOW

Description:  This DTC sets when the powertrain control module (PCM) detects that the fan control (FC) circuit voltage is less than the desired voltage.
Possible Causes: 
  • FC circuit open or short to ground
  • Damaged FC relay
Diagnostic Aids:  Check the wiring, connectors and FC relay for damage.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST KF .