P1858 FORD – Transmission Transfer Case Contact Plate ‘D’ Circuit Failure

P1858 FORD Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P1858 FORD Possible Causes

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

P1858 FORD 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.