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Home >> Mercury >> 2009 >> Sable Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1255 (Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid)) >> DTC Diagnosis >> DTC P0690: - Electronic Control Module (ECM)/Powertrain Control Module (Pcm) Power Relay Sense Circuit High
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DTC P0690: - Electronic Control Module (ECM)/Powertrain Control Module (Pcm) Power Relay Sense Circuit High

WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2009 Mercury Mountaineer, 2009 Mercury Milan, 2009 Mercury Mariner, 2009 Mercury Grand Marquis, and 2009 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
DTC 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 ignition 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 GO to Pinpoint Test B .