P1859 - Transmission Transfer Case Contact Plate 'D' Open Circuit

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Faulty Transfer Case Shift Motor
  • Transfer Case Shift Motor harness is open or shorted
  • Transfer Case Shift Motor circuit poor electrical connection

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1859 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.
OBDII Code P1859 - Transmission Transfer Case Contact Plate 'D' Open Circuit - AutoCodes.com

P1859 Information for specific makes

  • P1859 FORD Transmission Transfer Case Contact Plate 'D' Open Circuit
  • P1859 LINCOLN Transmission Transfer Case Contact Plate 'D' Open Circuit
  • P1859 MERCURY Transmission Transfer Case Contact Plate 'D' Open Circuit
  • P1859 MITSUBISHI Disengagement Too Late With Clutch 1

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P1859 Comments

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