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Home >> Ford >> 2006 >> Explorer 4.0 E, RWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid) >> DTC Diagnosis >> DTC P0689: Electronic Control Module (ECM)/Powertrain Control Module (Pcm) Power Relay Sense Circuit Low
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DTC P0689: Electronic Control Module (ECM)/Powertrain Control Module (Pcm) Power Relay Sense Circuit Low

P0689 - ELECTRONIC CONTROL MODULE (ECM)/POWERTRAIN CONTROL MODULE (PCM) POWER RELAY SENSE CIRCUIT LOW

Description:  This diagnostic trouble code (DTC) sets when the passive anti theft system (PATS) system indicates the ignition key is in ON or START position and the ignition switch position run (ISP-R) circuit indicates OFF, ACC, or LOCK position.
Possible Causes: 
  • Ignition circuit fuse
  • ISP-R circuit open in the harness
  • ISP-R circuit short to ground in the harness
  • Damaged ignition switch
  • Damaged PATS system
Diagnostic Aids:  Diagnose and repair all PATS DTCs first.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to Pinpoint Test B .