AutoCodes – GMC – P0617 2015 GMC Sierra

P0617 2015 GMC Sierra Code - Starter Relay Control Circuit High Voltage

Quick Answer

When the ignition switch is placed in the START position, a discrete signal is supplied to the Body Control Module (BCM) notifying it that the ignition is in the START position. Common causes include Faulty Starter Relay, Starter Relay harness is open or shorted, Starter Relay circuit poor electrical connection. 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
P0617 2015 GMC Sierra indicates Starter Relay Control Circuit High Voltage.
Common causes
Common causes include Faulty Starter Relay, Starter Relay harness is open or shorted, Starter Relay circuit poor electrical connection.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 278
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 15, 2022
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Code P0617 2015 GMC Sierra Description

When the ignition switch is placed in the START position, a discrete signal is supplied to the Body Control Module (BCM) notifying it that the ignition is in the START position. The BCM then sends a message to the Engine Control Module (ECM) that a crank has been requested. The ECM then verifies that the clutch pedal is depressed, or the transmission is in Park/Neutral. If it is, the ECM then supplies 12 V to the control circuit of the starter relay. When this occurs, battery voltage is supplied through the switch of the starter relay to the starter solenoid. The Diagnostic Trouble Code (DTC) will be set when the ECM detects improper voltage on the control circuit of the starter relay.
OBDII Code P0617 2015 GMC Sierra - Starter Relay Control Circuit High Voltage - AutoCodes.com
P0617 2015 GMC Sierra Code - Starter Relay Control Circuit High Voltage

What are the Possible Causes of the DTC P0617 2015 GMC Sierra?

  • Faulty Starter Relay
  • Starter Relay harness is open or shorted
  • Starter Relay circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P0617 2015 GMC Sierra?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0617 2015 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0617 2015 GMC Sierra code?

Need more information on how to fix the P0617 2015 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

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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.

Frequently Asked Questions about P0617 2015 GMC Sierra Code

1. What does the OBDII code P0617 mean for a 2015 GMC Sierra?

P0617 indicates a "Starter Relay Control Circuit High Voltage," meaning the ECM has detected an unusually high voltage in the starter relay control circuit.

2. What are the common symptoms of code P0617 on a 2015 GMC Sierra?

Symptoms may include difficulty starting the engine, intermittent no-start conditions, or a check engine light illuminated on the dashboard.

3. What causes the P0617 code to appear on a 2015 GMC Sierra?

Common causes include a faulty starter relay, damaged wiring or connectors in the starter circuit, or an issue with the ECM itself.

4. Can a weak battery cause the P0617 code on a 2015 GMC Sierra?

Yes, a weak or failing battery may cause voltage irregularities that trigger the P0617 code.

5. How do you diagnose the P0617 code on a 2015 GMC Sierra?

Diagnosis involves checking the starter relay, inspecting the wiring and connectors for damage or corrosion, and testing the battery and alternator for proper voltage.

6. Can a faulty starter relay trigger the P0617 code on a 2015 GMC Sierra?

Yes, a malfunctioning starter relay can cause high voltage readings in the control circuit, leading to the P0617 code.

7. Is it safe to drive a 2015 GMC Sierra with the P0617 code?

Driving with this code is not recommended as it may cause starting issues or lead to further damage to the electrical system.

8. How do you fix the P0617 code on a 2015 GMC Sierra?

Repairs may include replacing the starter relay, repairing or replacing damaged wiring, testing and replacing the battery, or addressing ECM issues if necessary.

9. Can corrosion in the wiring cause the P0617 code on a 2015 GMC Sierra?

Yes, corrosion in the wiring or connectors can lead to high resistance or voltage issues, triggering the P0617 code.

10. Does the P0617 code require ECM replacement on a 2015 GMC Sierra?

ECM replacement is rare and typically only necessary if all other components, such as the starter relay and wiring, have been ruled out as causes.

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