P0864 - TCM Communication Circuit Range/Performance

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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P0864 Possible Causes

  • Faulty Transmission Control Module (TCM)
  • Transmission Control Module (TCM) harness is open or shorted
  • Transmission Control Module (TCM) circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

First diagnose P0864 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 connector's pins.

Cost of diagnosing the P0864 code

    Labor: 1.0

    The cost of diagnosing the P0864 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.

P0864 Possible Symptoms

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

P0864 Description

The Engine Control Module (ECM) monitors the Transmission Control Module (TCM). The ECM sets the OBDII when there is a problem communicating with the TCM.
OBDII Code P0864 - TCM Communication Circuit Range/Performance - AutoCodes.com

P0864 More Information

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P0864 Information for specific makes

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Related Information

P0864 Comments

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