P0616 2015 GMC Sierra Code - Starter Relay Control Circuit Low 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
- P0616 2015 GMC Sierra indicates Starter Relay Control Circuit Low 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.
Code P0616 2015 GMC Sierra Description
What are the Possible Causes of the DTC P0616 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 P0616 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 P0616 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.
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Frequently Asked Questions about P0616 2015 GMC Sierra Code
1. What does the OBDII code P0616 mean on a 2015 GMC Sierra?
P0616 indicates a Starter Relay Control Circuit Low Voltage, meaning the Engine Control Module (ECM) has detected a voltage issue in the starter relay circuit.
2. What are the common symptoms of code P0616 in a 2015 GMC Sierra?
Symptoms may include the engine not starting, a clicking sound when turning the key, or intermittent starting issues.
3. What causes the P0616 code on a 2015 GMC Sierra?
Common causes include a faulty starter relay, damaged or corroded wiring, a weak battery, or a malfunctioning Engine Control Module (ECM).
4. How do I diagnose the P0616 code on my 2015 GMC Sierra?
Start by checking the battery voltage, inspecting the wiring and connections to the starter relay, and testing the relay itself for proper functionality.
5. Can a weak battery trigger the P0616 code on a 2015 GMC Sierra?
Yes, a weak or discharged battery can cause low voltage in the starter relay circuit, triggering the P0616 code.
6. How do I fix the P0616 code on a 2015 GMC Sierra?
Repairs may include replacing the starter relay, repairing or replacing damaged wiring, cleaning corroded connections, or replacing the battery if it's weak.
7. Will a P0616 code prevent my 2015 GMC Sierra from starting?
Yes, in many cases, a P0616 code can prevent the engine from starting due to insufficient voltage in the starter relay circuit.
8. Is the P0616 code dangerous to drive with on a 2015 GMC Sierra?
If the truck starts, it may still drive, but the issue could worsen and leave you stranded. It's best to address the problem promptly.
9. Can a faulty ECM cause the P0616 code on a 2015 GMC Sierra?
Yes, although less common, a malfunctioning ECM can fail to send the correct signals to the starter relay, causing the P0616 code.
10. How much does it cost to repair the P0616 code on a 2015 GMC Sierra?
Repair costs depend on the cause. Replacing a starter relay may cost $50-$100, while wiring repairs or ECM replacement can be more expensive.
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