P2839 - Shift Fork 'B' Position Circuit High

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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P2839 Possible Causes

  • Outdated Transmission Control Module (TCM) program (Reprogram TCM)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

First diagnose P2839 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 P2839 code

    Labor: 1.0

    The cost of diagnosing the P2839 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.

P2839 Possible Symptoms

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

P2839 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 P2839 - Shift Fork 'B' Position Circuit High - AutoCodes.com

P2839 More Information

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P2839 Information for specific makes

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P2839 Comments

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