Transmission Transfer Case Contact Plate ‘D’ Open Circuit
Table of contents
P1859 MERCURY Possible Causes
- Faulty Transfer Case Shift Motor
- Transfer Case Shift Motor harness is open or shorted
- Transfer Case Shift Motor circuit poor electrical connection
How do I fix code P1859 MERCURY?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the P1859 MERCURY code
The cost of diagnosing the P1859 MERCURY code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1859 MERCURY Description
The Transmission Control Module (TCM) monitors the Transmission Transfer Case Contact Plate ‘D’. The TCM sets the OBDII code when the Transmission Transfer Case Contact Plate ‘D’ is not to factory specifications.