P0697 2016 GMC Sierra Code - 5 Volt Reference 3 Circuit
Quick Answer
The P0697 diagnostic trouble code (DTC) for a 2016 GMC Sierra refers to a problem with the 5 Volt Reference 3 Circuit. Common causes include Faulty Sensor: A malfunctioning sensor that is connected to the 5 Volt Reference 3 Circuit, such as a throttle position sensor or oxygen sensor, can trigger the P0697 code, Wiring Issues: Corroded, damaged, or shorted wiring in the 5 Volt Reference 3 Circuit can disrupt the voltage signal and lead to this code, ECM/PCM Malfunction: In rare cases, a problem with the Engine Control Module or Powertrain Control Module itself can cause the 5 Volt Reference 3 Circuit to malfunction. 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
- P0697 2016 GMC Sierra indicates 5 Volt Reference 3 Circuit.
- Common causes
- Common causes include Faulty Sensor: A malfunctioning sensor that is connected to the 5 Volt Reference 3 Circuit, such as a throttle position sensor or oxygen sensor, can trigger the P0697 code, Wiring Issues: Corroded, damaged, or shorted wiring in the 5 Volt Reference 3 Circuit can disrupt the voltage signal and lead to this code, ECM/PCM Malfunction: In rare cases, a problem with the Engine Control Module or Powertrain Control Module itself can cause the 5 Volt Reference 3 Circuit to malfunction.
- 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 P0697 2016 GMC Sierra Description
The P0697 diagnostic trouble code (DTC) for a 2016 GMC Sierra refers to a problem with the 5 Volt Reference 3 Circuit. In modern vehicles, the Engine Control Module (ECM) or Powertrain Control Module (PCM) sends out 5-volt reference signals to various sensors and components throughout the vehicle. These reference signals are used by the sensors to provide important data to the ECM/PCM for proper engine operation and performance.
Common Causes of P0697 2016 GMC Sierra
- Faulty Sensor: A malfunctioning sensor that is connected to the 5 Volt Reference 3 Circuit, such as a throttle position sensor or oxygen sensor, can trigger the P0697 code.
- Wiring Issues: Corroded, damaged, or shorted wiring in the 5 Volt Reference 3 Circuit can disrupt the voltage signal and lead to this code.
- ECM/PCM Malfunction: In rare cases, a problem with the Engine Control Module or Powertrain Control Module itself can cause the 5 Volt Reference 3 Circuit to malfunction.
- Poor Ground Connection: A poor ground connection can interfere with the proper functioning of the 5 Volt Reference 3 Circuit and trigger the P0697 code.
Symptoms of P0697 2016 GMC Sierra
- Check Engine Light: The most common symptom associated with the P0697 code is the illumination of the Check Engine Light on the vehicle's dashboard.
- Engine Misfires: A malfunctioning 5 Volt Reference 3 Circuit can lead to engine misfires, rough idling, or hesitation during acceleration.
- Poor Fuel Economy: The ECM/PCM relies on accurate sensor data to adjust fuel delivery, so a faulty 5 Volt Reference 3 Circuit can result in decreased fuel efficiency.
- Stalling: In severe cases, the vehicle may stall or have difficulty starting due to the incorrect sensor readings caused by the circuit issue.
How to Fix P0697 2016 GMC Sierra
- Diagnose the Issue: Use a diagnostic scanner to retrieve the trouble code and perform a thorough inspection of the 5 Volt Reference 3 Circuit components, including sensors and wiring.
- Test Sensors: Check the sensors connected to the circuit for proper operation and replace any faulty sensors as needed.
- Inspect Wiring: Inspect the wiring harness for any signs of damage, corrosion, or shorts. Repair or replace any damaged wiring.
- Check Ground Connection: Ensure that the ground connection for the 5 Volt Reference 3 Circuit is secure and free of corrosion.
- Clear Codes: After completing the repairs, clear the trouble codes from the ECM/PCM memory and test drive the vehicle to verify that the issue has been resolved.
Cost to Fix P0697 2016 GMC Sierra
The cost of repairing a P0697 code on a 2016 GMC Sierra can vary depending on the specific cause of the issue. In general, the cost of parts for sensor replacement or wiring repair can range from $50 to $200. Labor costs at auto repair shops typically range from $80 to $150 per hour. The total cost of repairs for this issue could range from $150 to $500, depending on the extent of the problem and the rates charged by the repair shop. It's recommended to consult with a professional mechanic for a more accurate cost estimate based on the specific circumstances of your vehicle.
Tech Notes for P0697 2016 GMC Sierra
The 5 Volt reference 3 circuit provides 5 Volt to the following sensors: (Some models may have different sensors, please consult the factory service manual for the list of sensors for your model and year)
- Accelerator pedal position sensor 2
- Manifold absolute pressure sensor
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