002430

UnclassifiedLubrication

What This Code Means

Continuity measured on Wire 86 when infinite resistance is expected; Low oil pressure switch indicates INFINITY when engine is shut down and DMM connected to terminals; Low oil pressure switch indicates CONTINUITY when AUTO-OFF-MANUAL switch is set to MANUAL and engine has had a chance to build pressure, with DMM connected to terminals; 3.3 VDC is not measured at Wire 86 when DMM is connected to Wire 86 and a good ground, with engine shut down and Wire 86 disconnected at the LOP switch; CONTINUITY is not measured between disconnected Wire 86 and Wire 86 when DMM is connected with harness connector disconnected from controller and Wire 86 and Wire 0 disconnected from LOP switch; CONTINUITY is measured between disconnected Wire 86 and an engine ground when DMM is connected with Wire 86 still disconnected from LOP switch and controller harness connector

Possible Causes

  • Short to ground on Wire 86
  • Faulty LOP switch
  • Low oil pressure (implied by expected behavior)
  • Continuity issue on Wire 86 from the LOP switch back to the J4 connector
  • Faulty Wire 86 between the LOP switch and the controller harness connector

Suggested Actions

  1. 1Repair or replace as needed (referring to the shorted component or wiring)
  2. 2Replace the LOP switch
  3. 3Check continuity on Wire 86 from the LOP switch back to the J4 connector
  4. 4Repair or replace Wire 86 between the LOP switch and the controller harness connector
  5. 5Repair or replace as needed for short to ground on Wire 86

ASK RUDY ABOUT THIS FAULT

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