Engine-Codes - Generic - P0856

P0856 Code - Traction Control Torque Request Circuit Malfunction

- Code Popularity: 32,354 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the P0856 Code?

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

|How to Fix the P0856 Code?

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.

|What is the cost to diagnose the P0856 code?

Labor: 1.0

The cost to diagnose the P0856 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 P0856 code possible symptoms?

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

|What Does the P0856 Code Mean?

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.

Traction Control Torque Request Circuit Malfunction

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|P0856 code information for specific makes

  • P0856 BUICK Traction Control Torque Request Circuit Malfunction
  • P0856 CADILLAC Traction Control Torque Request Circuit Malfunction
  • P0856 CHEVROLET Traction Control Torque Request Circuit Malfunction
  • P0856 DODGE Traction Control Torque Request Circuit Malfunctional
  • P0856 GMC Traction Control Torque Request Circuit Malfunction
  • P0856 HUMMER Traction Control Torque Request Circuit Malfunction
  • P0856 PONTIAC Traction Control Torque Request Circuit Malfunction

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