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Home >> Mercury >> 2008 >> Sable Base, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Powertrain DTC Charts And Descriptions (Except Diesel & Hybrid) >> DTC Diagnosis >> P0690 - Electronic Control Module (ECM)/Powertrain Control Module (Pcm) Power Relay Sense Circuit High

P0690 - Electronic Control Module (ECM)/Powertrain Control Module (Pcm) Power Relay Sense Circuit High

P0690 - ELECTRONIC CONTROL MODULE (ECM)/POWERTRAIN CONTROL MODULE (PCM) POWER RELAY SENSE CIRCUIT HIGH

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