Engine-CodesGMC – P10E1 2016 GMC Sierra

P10E1 2016 GMC Sierra Code - Ignition On/Start Circuit Source Bypass Relay Control Circuit

Quick Answer

The P10E1 diagnostic trouble code (DTC) for a 2016 GMC Sierra relates to the Ignition On/Start Circuit Source Bypass Relay Control Circuit. Common causes include Faulty ignition relay, Wiring issues in the ignition circuit, Defective ignition switch. 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
P10E1 2016 GMC Sierra indicates Ignition On/Start Circuit Source Bypass Relay Control Circuit.
Common causes
Common causes include Faulty ignition relay, Wiring issues in the ignition circuit, Defective ignition switch.
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 13, 2024
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Code P10E1 2016 GMC Sierra Description

The P10E1 diagnostic trouble code (DTC) for a 2016 GMC Sierra relates to the Ignition On/Start Circuit Source Bypass Relay Control Circuit. This code indicates that there is a malfunction in the control circuit for the relay that bypasses the ignition on/start circuit source. In simpler terms, this means that there is an issue with the electrical system that controls the relay responsible for starting the vehicle.

OBDII Code P10E1 2016 GMC Sierra - Ignition On/Start Circuit Source Bypass Relay Control Circuit
P10E1 2016 GMC Sierra Code - Ignition On/Start Circuit Source Bypass Relay Control Circuit

Common Causes of P10E1 2016 GMC Sierra

  1. Faulty ignition relay
  2. Wiring issues in the ignition circuit
  3. Defective ignition switch
  4. Corrosion or poor connections in the electrical system
  5. Faulty control module

Symptoms of P10E1 2016 GMC Sierra

  1. Engine cranks but does not start
  2. Intermittent starting issues
  3. Check Engine Light illuminated
  4. Loss of power while driving
  5. Vehicle stalls unexpectedly

How to Fix P10E1 2016 GMC Sierra

  1. Diagnose the issue by using a scan tool to retrieve the DTC and inspecting the ignition system components.
  2. Test the ignition relay and replace it if found to be faulty.
  3. Check the wiring in the ignition circuit for any damage or corrosion, repairing or replacing as necessary.
  4. Inspect the ignition switch for proper operation and replace if needed.
  5. Clear the DTC and test the vehicle to ensure the issue has been resolved.

Cost to Fix P10E1 2016 GMC Sierra

The typical repair costs for addressing a P10E1 code on a 2016 GMC Sierra can vary depending on the specific cause of the issue. In general, the cost of parts such as a new ignition relay, wiring repairs, or an ignition switch replacement can range from $100 to $300. Labor costs at auto repair shops typically range from $80 to $150 per hour. Therefore, the total cost of repairs for this issue could be in the range of $200 to $500, including parts and labor. It's advisable to check with local auto repair shops for more accurate pricing based on your location and vehicle specifics.

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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 P10E1 2016 GMC Sierra Code

What does the OBDII code P10E1 mean on a 2016 GMC Sierra?

1. The P10E1 code indicates an issue with the Ignition On/Start Circuit Source Bypass Relay Control Circuit, which helps manage the ignition and starting system. 2.

What are the common symptoms of the P10E1 code?

Symptoms may include difficulty starting the vehicle, intermittent starting issues, a no-start condition, or an illuminated check engine light. 3.

What causes the P10E1 code to trigger?

Common causes include a faulty bypass relay, damaged wiring or connectors in the ignition circuit, a malfunctioning ignition switch, or a problem with the powertrain control module (PCM). 4.

Can I drive my GMC Sierra with the P10E1 code?

Driving with this code may result in unpredictable starting issues or a no-start condition, so it's recommended to resolve the issue promptly. 5.

How do I diagnose the P10E1 code?

Start by inspecting the ignition circuit wiring and connectors for damage, test the bypass relay for proper operation, and check for voltage and ground signals in the circuit. 6.

How do I fix the P10E1 code on my 2016 GMC Sierra?

Repairs may include replacing a faulty bypass relay, repairing damaged wiring or connectors, replacing the ignition switch, or reprogramming or replacing the PCM if necessary. 7.

What tools are needed to diagnose the P10E1 code?

You’ll need an OBDII scanner, a multimeter to check voltage and continuity, and possibly a wiring diagram for the ignition system. 8.

How much does it cost to fix the P10E1 code?

Costs vary depending on the issue, but replacing a relay typically costs $50-$150, while wiring repairs or PCM replacement can be more expensive. 9.

Can a weak battery cause the P10E1 code?

Yes, a weak or failing battery can cause issues with the ignition circuit and potentially trigger the P10E1 code. 10.

Do I need to clear the P10E1 code after repairs?

Yes, after completing repairs, use an OBDII scanner to clear the code and ensure the issue is resolved by monitoring for its return.

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