P02E3 2015 GMC Sierra Code - Intake Air Flow Valve Control Circuit High Voltage
Quick Answer
The intake airflow valve of diesel engines reduces the intake air flow rate in part-load operation so that a higher exhaust gas recirculation rate can be achieved. Common causes include Faulty Throttle Body Assembly, Throttle Body Assembly harness is open or shorted, Throttle Body Assembly 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
- P02E3 2015 GMC Sierra indicates Intake Air Flow Valve Control Circuit High Voltage.
- Common causes
- Common causes include Faulty Throttle Body Assembly, Throttle Body Assembly harness is open or shorted, Throttle Body Assembly 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 P02E3 2015 GMC Sierra Description
The Intake airflow valve assembly contains a contactless inductive throttle position sensing element that is managed by a customized integrated circuit. The valve position sensor is mounted within the valve body assembly and is not serviceable. The Engine Control Module (ECM) supplies the valve body with a 5 V reference circuit, a low reference circuit, an H-bridge motor directional control circuit, and an asynchronous signal/serial data circuit. The asynchronous signal means communication is only going from the intake airflow valve to the ECM. The Intake Air Flow Valve cannot receive data from the ECM over the signal/serial data circuit. The valve position sensor provides a signal voltage that changes relative to the valve blade angle. The valve position sensor information is transmitted between the Intake Air Flow Valve and the ECM on the signal/serial data circuit.
The valve may also be used to shut down the engine by closing the intake airflow valve and disabling the fuel injectors if the control module detects the engine speed is beyond the desired control limits. The Diagnostic Trouble Code (DTC) will be set if the ECM detects that the intake airflow valve control circuit voltage is greater than a calibrated.
What are the Possible Causes of the DTC P02E3 2015 GMC Sierra?
- Faulty Throttle Body Assembly
- Throttle Body Assembly harness is open or shorted
- Throttle Body Assembly circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P02E3 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 P02E3 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 P02E3 2015 GMC Sierra Code
1. What are common symptoms of OBDII code P02E3 in a 2015 GMC Sierra related to the Intake Air Flow Valve Control Circuit High Voltage?
- Common symptoms include rough idling, engine stalling, reduced fuel efficiency, and potential issues with acceleration.
2. What are the possible causes of OBDII code P02E3 in a 2015 GMC Sierra?
- Possible causes include a faulty intake air flow valve, issues with the intake air flow valve control circuit, damaged wiring or connectors, or a problem with the engine control module (ECM).
3. How can I diagnose the OBDII code P02E3 in my 2015 GMC Sierra?
- Diagnosing this code involves using a diagnostic scanner to retrieve the specific trouble code, inspecting the intake air flow valve and its circuitry for any visible damage, and testing the components using a multimeter.
4. Can a dirty air filter cause OBDII code P02E3 in a 2015 GMC Sierra?
- While a dirty air filter can affect engine performance, it is unlikely to directly cause OBDII code P02E3 related to the intake air flow valve control circuit high voltage.
5. How can I repair OBDII code P02E3 in my 2015 GMC Sierra?
- Repair options may include replacing the intake air flow valve, repairing or replacing damaged wiring or connectors, or reprogramming the ECM if necessary.
6. Is it safe to continue driving my 2015 GMC Sierra with OBDII code P02E3 present?
- It is not recommended to continue driving with this code present, as it can lead to further engine damage and potential safety hazards. It's best to address the issue promptly.
7. Can a DIY enthusiast fix OBDII code P02E3 in a 2015 GMC Sierra?
- Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to address this code by following repair guides and procedures. However, professional assistance may be needed for more complex issues.
8. How much does it typically cost to repair OBDII code P02E3 in a 2015 GMC Sierra at a mechanic?
- The cost of repairing this code can vary depending on the specific cause of the issue, but it may range from $200 to $600 or more, including parts and labor.
9. Will resetting the ECM clear OBDII code P02E3 in a 2015 GMC Sierra?
- Resetting the ECM may temporarily clear the code, but if the underlying issue causing the code is not addressed, it is likely to reappear after a driving cycle or two.
10. Is OBDII code P02E3 in a 2015 GMC Sierra covered under any warranties?
- Depending on the vehicle's warranty status and coverage, the repair for this code may be covered under the manufacturer's warranty, an extended warranty, or a certified pre-owned warranty, if applicable.
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