Engine-Codes - Generic - P1858

P1858 Code - Transmission Transfer Case Contact Plate 'D' Circuit Failure

- Code Popularity: 14,283 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P1858?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Transfer Case Shift Motor
  • Transfer Case Shift Motor harness is open or shorted
  • Transfer Case Shift Motor circuit poor electrical connection
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How to Fix the DTC P1858?

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 pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P1858 code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

What Does the P1858 Code Mean?

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.

P1858 Code - Transmission Transfer Case Contact Plate 'D' Circuit Failure

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Code P1858 Information for Specific Makes

  • P1858 Ford Transmission Transfer Case Contact Plate 'D' Circuit Failure
  • P1858 Lincoln Transmission Transfer Case Contact Plate 'D' Circuit Failure
  • P1858 Mercury Transmission Transfer Case Contact Plate 'D' Circuit Failure
  • P1858 Mitsubishi Even Number Gear Axle Interlock

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