P1571 GMC - Traction Control Desired Torque Out Of Range

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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P1571 GMC Possible Causes

  • Faulty Electronic Brake Control Module (EBCM)
  • Faulty Powertrain Control Module (PCM)
  • EBCM harness is open or shorted
  • EBCM circuit poor electrical connection

First diagnose P1571 GMC 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 P1571 GMC code

    Labor: 1.0

    The cost of diagnosing the P1571 GMC 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.

When is the P1571 GMC code detected?

The Powertrain Control Module (PCM) does not receive the desired pulse width signal from the Electronic Brake Control Module (EBCM)

P1571 GMC Possible Symptoms

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

P1571 Gmc Description

The Electronic Brake Control Module (EBCM) and the Powertrain Control Module (PCM) simultaneously control the traction control. The EBCM sends a Requested Torque message via a pulse width modulated (PWM) signal to the PCM. The duty cycle of the signal is used to determine how much engine torque the EBCM is requesting the PCM to deliver. Normal values are between 10 and 90 percent duty cycle. The signal should be at 90 percent when traction control is not active and at lower values during traction control activations. The PCM supplies the pull up voltage that the EBCM switches to ground to create the signal.
OBDII Code P1571 Gmc - Traction Control Desired Torque Out Of Range - AutoCodes.com

P1571 GMC More Information

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