Engine-CodesGMC – P0880 2016 GMC Sierra

P0880 2016 GMC Sierra Code - Transmission Control Module Supply Voltage Circuit

Quick Answer

The P0880 diagnostic trouble code (DTC) for a 2016 GMC Sierra relates to the Transmission Control Module (TCM) Supply Voltage Circuit. Common causes include Damaged wiring or connectors in the TCM circuit, Faulty TCM, Blown fuse related to the TCM. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0880 2016 GMC Sierra indicates Transmission Control Module Supply Voltage Circuit.
Common causes
Common causes include Damaged wiring or connectors in the TCM circuit, Faulty TCM, Blown fuse related to the TCM.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code P0880 2016 GMC Sierra Description

The P0880 diagnostic trouble code (DTC) for a 2016 GMC Sierra relates to the Transmission Control Module (TCM) Supply Voltage Circuit. This code indicates that there is a malfunction in the circuit responsible for supplying power to the TCM. The TCM is a crucial component of the vehicle's transmission system, as it controls various functions such as shifting points, torque converter lockup, and overall transmission performance.

OBDII Code P0880 2016 GMC Sierra - Transmission Control Module Supply Voltage Circuit
P0880 2016 GMC Sierra Code - Transmission Control Module Supply Voltage Circuit

Common Causes of P0880 2016 GMC Sierra

  1. Damaged wiring or connectors in the TCM circuit
  2. Faulty TCM
  3. Blown fuse related to the TCM
  4. Issues with the vehicle's battery or alternator

Symptoms of P0880 2016 GMC Sierra

  1. Erratic shifting patterns
  2. Harsh shifts
  3. Delayed engagement
  4. Transmission going into limp mode
  5. Check Engine Light illuminated

How to Fix P0880 2016 GMC Sierra

  1. Begin by inspecting the wiring and connectors in the TCM circuit for any signs of damage or corrosion. Repair or replace as necessary.
  2. Check the TCM for proper functionality and replace if found to be faulty.
  3. Inspect and replace any blown fuses related to the TCM supply voltage circuit.
  4. Test the vehicle's battery and alternator to ensure they are providing the correct voltage to the TCM.
  5. Clear the DTC and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0880 2016 GMC Sierra

The typical repair costs for addressing a P0880 code on a 2016 GMC Sierra can range from $200 to $500, depending on the specific cause of the issue and the cost of parts and labor. It is important to note that diagnosis time and labor rates at auto repair shops can vary, with rates typically ranging between $80 and $150 per hour. Rates may be higher at dealerships or in metropolitan areas, while independent shops often charge less. For a more accurate estimate, it is recommended to check local rates before proceeding with the repair.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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