P284C - Shift Fork 'D' Stuck

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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P284C Possible Causes

  • Outdated Transmission Control Module (TCM) program (Reprogram TCM)
  • Faulty Transmission Control Module (TCM)
  • Faulty Transmission Assembly

First diagnose P284C code

    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 terminals.

Cost of diagnosing the P284C code

    Labor: 1.0

    The cost of diagnosing the P284C 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.

P284C Possible Symptoms

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

P284c Description

There are two electric motors used to shift the gears in the transmission, on for gears 1-3-5 and one for gears R-2-4-6. The gear shifting is made by two shift drums connected to shift motor pinion via two ideal gears. The maximum shift force is 1500N (337 lb). The motors are integrated in the Transmission Control Module (TCM) and work independently of each other.
OBDII Code P284c - Shift Fork 'D' Stuck - AutoCodes.com

P284C More Information

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P284C Information for specific makes

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P284C Comments

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