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Engine-Codes - Generic - P0859

P0859 Code - Traction Control Input Signal High

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3
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|P0859 code possible causes

  • Faulty Electronic Brake Control Module (EBCM)
  • EBCM Harness is open or shorted
  • EBCM Circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

|How is the P0859 code repair?

Start by checking 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.
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|What is the cost to diagnose the P0859 code

Labor: 1.0

The cost to diagnose the P0859 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are P0859 code possible symptoms?

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

|What is P0859 code meaning?

When traction control is active, the Electronic Brake Control Module (EBCM). sends a serial data message to the Engine Control Module (ECM) requesting torque reduction. When certain ECM DTCs are set, the ECM will not be able to perform the torque reduction for traction control. A serial data message is sent to the EBCM indicating that traction control is not allowed.

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