LEMON Manuals: Even more car manuals for everyone
Home >> Lincoln >> 2012 >> MKZ Hybrid >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 38 (Engine Controls (Except Diesel & Hybrid) - Powertrain DTC Descriptions - DTC P1703 - P2A04, DTC PXXXX, DTC U0046 - U300C, DTC UXXXX) >> DTC P1793: Ignition Supply Malfunction

DTC P1793: Ignition Supply Malfunction

WARNING: This page is about a different variant/trim than selected.
P1793 - IGNITION SUPPLY MALFUNCTION

Description:  The PCM monitors the ignition switch position run (ISP-R) circuit. This DTC sets if the voltage drops below 7 volts or rises above 16 volts.
Possible Causes: 
  • ISP-R circuit short to ground
  • ISP-R circuit short to voltage
  • Battery or charging system concern
Diagnostic Aids: 
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST B .