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Home >> Mercury >> 2009 >> Mariner Base, 2.5 7, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Engine Controls - Powertrain DTC Charts & Descriptions - (Hybrid)) >> Diagnostic Trouble Code (DTC) Charts and Descriptions >> DTC P2533 (Pcm): Ignition Switch Run/Start Position Circuit

DTC P2533 (Pcm): Ignition Switch Run/Start Position Circuit

WARNING: This page is about a different variant/trim than selected.
P2533 (PCM) - IGNITION SWITCH RUN/START POSITION CIRCUIT

Description:  The powertrain control module (PCM) carries out a logic check on the ISP-R and ISP-R/S circuits. The PCM sets this DTC when a concern is detected.
Possible Causes: 
  • ISP-R circuit open
  • ISP-R circuit short to ground
  • PCMRC circuit open
  • PCMRC circuit short to voltage
  • Ignition circuit fuse
  • Damaged ignition switch
  • PCM
Diagnostic Aids:  The KEYST PID should display RUN when the key is in the ON position.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST B .
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