002431
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
- •Continuity issue on Wire 86 from the LOP switch back to the J4 connector
- •Faulty LOP switch
- •Faulty Wire 86 between the LOP switch and the controller harness connector
- •Low oil pressure (implied by expected behavior)
- •Short to ground on Wire 86
- •Short to ground on wire 85
- •Wire 85 short to ground
Suggested Actions
- 1Check continuity on Wire 86 from the LOP switch back to the J4 connector
- 2Check wire 85 for a short to ground
- 3Connect one test lead to wire 85 (disconnected from high oil temperature switch)
- 4Remove harness connector from the controller
- 5Repair or replace Wire 86 between the LOP switch and the controller harness connector
- 6Repair or replace as needed (referring to the shorted component or wiring)
- 7Repair or replace as needed for short to ground on Wire 86
- 8Replace the LOP switch
- 9Set the DM (Digital Multimeter) to measure resistance
- 10Set the DM to measure resistance
- 11Set the digital multimeter (DM) to measure resistance
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