AutoCodesGMC – P10E3 2014 GMC Sierra

P10E3 2014 GMC Sierra Code - Ignition On/Start Circuit Source Bypass Relay Control Circuit High Voltage

Quick Answer

The Engine Control Module (ECM) contains a microprocessor used to process input data to control outputs. Common causes include Faulty Engine Control Module Wake-Up Relay, Engine Control Module Wake-Up Relay harness is open or shorted, Engine Control Module Wake-Up 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
P10E3 2014 GMC Sierra indicates Ignition On/Start Circuit Source Bypass Relay Control Circuit High Voltage.
Common causes
Common causes include Faulty Engine Control Module Wake-Up Relay, Engine Control Module Wake-Up Relay harness is open or shorted, Engine Control Module Wake-Up 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.
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Code Popularity 154
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 11, 2022
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Code P10E3 2014 GMC Sierra Description

The Engine Control Module (ECM) contains a microprocessor used to process input data to control outputs. The control module controls a series of actuators to ensure optimal engine performance. The control module does this by reading values from a variety of sensors, interprets the data and adjusts the engine actuators accordingly. Relays are used to control a high-power circuit with a low power signal. The output circuit is switched to the ground to activate the component. The Diagnostic Trouble Code (DTC) will be set when the Control Circuit is short to voltage for greater than 1 s.
OBDII Code P10E3 2014 GMC Sierra - Ignition On/Start Circuit Source Bypass Relay Control Circuit High Voltage - AutoCodes.com
P10E3 2014 GMC Sierra Code - Ignition On/Start Circuit Source Bypass Relay Control Circuit High Voltage

What are the Possible Causes of the DTC P10E3 2014 GMC Sierra?

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

How to Fix the DTC P10E3 2014 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 P10E3 2014 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 P10E3 2014 GMC Sierra 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 P10E3 2014 GMC Sierra Code

1. What does the OBDII code P10E3 mean on a 2014 GMC Sierra?

P10E3 indicates an issue with the Ignition On/Start Circuit Source Bypass Relay Control Circuit, specifically that the voltage is higher than expected.

2. What are the common symptoms of code P10E3 in a 2014 GMC Sierra?

Symptoms may include difficulty starting the engine, intermittent starting issues, or the Check Engine Light being illuminated.

3. What causes the P10E3 code to appear?

Common causes include a faulty bypass relay, damaged or corroded wiring, poor electrical connections, or a malfunctioning Engine Control Module (ECM).

4. Can I drive my 2014 GMC Sierra with the P10E3 code?

While the truck may still start and run, ignoring this code could lead to further electrical issues or complete failure to start. It’s best to address the issue promptly.

5. How do I diagnose code P10E3 in my GMC Sierra?

Diagnose by inspecting the bypass relay, checking the wiring and connectors for damage or corrosion, and testing the circuit voltage with a multimeter to identify irregularities.

6. What repairs might fix the P10E3 code?

Repairs could include replacing the bypass relay, repairing or replacing damaged wiring, cleaning corroded connectors, or reprogramming or replacing the ECM.

7. How much does it cost to fix the P10E3 code on a 2014 GMC Sierra?

The cost varies depending on the issue. Replacing a relay may cost $50–$100, while wiring repairs or ECM replacement could range from $200 to $1,200.

8. Can a weak battery cause the P10E3 code?

Yes, a weak or failing battery can cause electrical issues that might trigger this code. Ensure the battery and charging system are functioning properly.

9. What tools are needed to troubleshoot the P10E3 code?

You’ll need an OBDII scanner, a multimeter, and possibly a wiring diagram for the ignition circuit to diagnose the issue accurately.

10. Is the P10E3 code specific to the 2014 GMC Sierra?

The P10E3 code is not exclusive to the 2014 GMC Sierra, but the exact symptoms and fixes may vary depending on the vehicle make and model.

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