Engine-CodesGMC – P0616 2014 GMC Sierra

P0616 2014 GMC Sierra Code - Starter Relay Control Circuit Low Voltage

Quick Answer

The P0616 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates a problem with the starter relay control circuit experiencing low voltage. Common causes include Faulty wiring in the starter relay control circuit, Defective starter relay, Weak or failing battery. 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
P0616 2014 GMC Sierra indicates Starter Relay Control Circuit Low Voltage.
Common causes
Common causes include Faulty wiring in the starter relay control circuit, Defective starter relay, Weak or failing battery.
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 19, 2024
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Code P0616 2014 GMC Sierra Description

The P0616 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates a problem with the starter relay control circuit experiencing low voltage. The starter relay is a crucial component in the starting system of the vehicle, responsible for engaging the starter motor to crank the engine. When the control circuit voltage is below the specified threshold, it can lead to issues with starting the vehicle or cause intermittent starting problems.

OBDII Code P0616 2014 GMC Sierra - Starter Relay Control Circuit Low Voltage
P0616 2014 GMC Sierra Code - Starter Relay Control Circuit Low Voltage

Common Causes of P0616 2014 GMC Sierra

  1. Faulty wiring in the starter relay control circuit.
  2. Defective starter relay.
  3. Weak or failing battery.
  4. Corroded or loose connections in the starting system.
  5. Malfunctioning ignition switch.

Symptoms of P0616 2014 GMC Sierra

  1. Extended cranking times before the engine starts.
  2. Intermittent starting issues where the engine may not start on the first attempt.
  3. Failure to start the vehicle at all.
  4. Clicking sound when turning the key in the ignition.

How to Fix P0616 2014 GMC Sierra

  1. Begin by checking the battery voltage to ensure it is within the manufacturer's specifications.
  2. Inspect the wiring and connections in the starter relay control circuit for any damage or corrosion.
  3. Test the starter relay for proper functionality and replace if necessary.
  4. Check the ignition switch for any signs of malfunction and replace if needed.
  5. Clear the DTC and test the vehicle to ensure the issue has been resolved.

Cost to Fix P0616 2014 GMC Sierra

The typical repair costs for addressing a P0616 code in a 2014 GMC Sierra can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor in your area. It is important to note that diagnosis time and labor rates at auto repair shops can vary, so it is advisable to check with local shops for a more accurate estimate.

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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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