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P0652 2015 Chevrolet Silverado Code - 5 Volt Reference 2 Circuit Low Voltage

Quick Answer

The P0652 diagnostic trouble code (DTC) in a 2015 Chevrolet Silverado indicates that the 5-volt reference circuit 2 is registering a lower voltage than the expected range. Common causes include Faulty 5-volt reference circuit 2, Short or open circuit in the wiring harness, Malfunctioning sensor connected to the circuit. 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
P0652 2015 Chevrolet Silverado indicates 5 Volt Reference 2 Circuit Low Voltage.
Common causes
Common causes include Faulty 5-volt reference circuit 2, Short or open circuit in the wiring harness, Malfunctioning sensor connected to the circuit.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 13, 2024
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Code P0652 2015 Chevrolet Silverado Description

The P0652 diagnostic trouble code (DTC) in a 2015 Chevrolet Silverado indicates that the 5-volt reference circuit 2 is registering a lower voltage than the expected range. This circuit is crucial as it provides a stable 5-volt reference signal to various sensors and components in the vehicle's engine management system. When the voltage drops below the specified threshold, it can lead to erratic sensor readings, improper fuel delivery, and overall engine performance issues.

OBDII Code P0652 2015 Chevrolet Silverado - 5 Volt Reference 2 Circuit Low Voltage
P0652 2015 Chevrolet Silverado Code - 5 Volt Reference 2 Circuit Low Voltage

Common Causes of P0652 2015 Chevrolet Silverado

  1. Faulty 5-volt reference circuit 2.
  2. Short or open circuit in the wiring harness.
  3. Malfunctioning sensor connected to the circuit.
  4. Issue with the engine control module (ECM).
  5. Corrosion or poor connections in the circuit.

Symptoms of P0652 2015 Chevrolet Silverado

  1. Check Engine Light illuminated on the dashboard.
  2. Engine running rough or misfiring.
  3. Engine stalling or difficulty starting.
  4. Erratic sensor readings.
  5. Decreased fuel efficiency.

How to Fix P0652 2015 Chevrolet Silverado

  1. Begin by conducting a thorough visual inspection of the wiring harness and connectors related to the 5-volt reference circuit 2.
  2. Use a multimeter to test the voltage output of the circuit and compare it to the manufacturer's specifications.
  3. Check the sensors connected to the circuit for any signs of damage or malfunction.
  4. If necessary, replace the faulty sensor, repair any damaged wiring, or replace the engine control module.
  5. Clear the DTC and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0652 2015 Chevrolet Silverado

The typical repair costs for addressing a P0652 DTC in a 2015 Chevrolet Silverado can range from $100 to $500, depending on the specific cause of the issue and the cost of parts and labor. It's important to note that diagnosis time and labor rates at auto repair shops can vary, with hourly rates typically ranging between $80 and $150. Factors such as location, vehicle make and model, and engine type can also influence the final repair costs. It's recommended to consult with a professional mechanic for a more accurate estimate based on your specific circumstances.

What does this mean?

Tech Notes for P0652 2015 Chevrolet Silverado

Disconnecting one component at a time from the affected 5 Volt reference circuit while observing the scan tool 5 Volt Reference Circuit Status parameter may help locate the fault. The scan tool parameter will change from Malfunction to OK when the source of the fault is disconnected. If all 5 Volt reference components have been disconnected and a fault is still indicated, the fault may exist in the wiring harness.



The 5 Volt reference 2 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)



- Brake pedal position sensor

- Crankshaft position sensor

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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 P0652 2015 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P0652 in a 2015 Chevrolet Silverado?

- Common symptoms include issues with the vehicle's electrical system, such as erratic or non-functional gauges, warning lights on the dashboard, and potential engine performance problems.

2. What does the OBDII code P0652 "5 Volt Reference 2 Circuit Low Voltage" indicate in a 2015 Chevrolet Silverado?

- This code indicates that the powertrain control module (PCM) has detected a low voltage condition in the 5-volt reference circuit 2, which may affect various sensors and components in the vehicle.

3. What are the possible causes of the P0652 code in a 2015 Chevrolet Silverado?

- Possible causes include a faulty 5-volt reference circuit 2 sensor, damaged wiring or connectors in the circuit, a malfunctioning PCM, or a short to ground within the circuit.

4. How can I diagnose the P0652 trouble code in my 2015 Chevrolet Silverado?

- Diagnosis typically involves inspecting the wiring and connectors related to the 5-volt reference circuit 2, testing the affected sensors or components, and using a multimeter to check for proper voltage levels.

5. Can I still drive my 2015 Chevrolet Silverado with the P0652 trouble code present?

- It is generally not recommended to drive the vehicle with this code active, as it can lead to potential electrical issues and affect the performance and safety of the vehicle.

6. How can I repair the P0652 code in my 2015 Chevrolet Silverado?

- Repair steps may include repairing or replacing damaged wiring or connectors, replacing the faulty sensor or component causing the low voltage condition, and clearing the trouble code with a scan tool.

7. Is it necessary to reset the PCM after repairing the P0652 trouble code in a 2015 Chevrolet Silverado?

- Yes, it is recommended to reset the PCM using a scan tool after completing the repairs to clear the trouble code and ensure proper functionality of the vehicle's systems.

8. Can a DIY enthusiast fix the P0652 code in a 2015 Chevrolet Silverado?

- Depending on the individual's skill level and access to tools, a DIY enthusiast may be able to diagnose and repair the P0652 code, but it is recommended to seek professional help if unsure.

9. What are the potential long-term effects of ignoring the P0652 trouble code in a 2015 Chevrolet Silverado?

- Ignoring this code can lead to further electrical issues, potential damage to other vehicle components, and may result in poor engine performance or even safety hazards while driving.

10. How much does it typically cost to repair the P0652 code in a 2015 Chevrolet Silverado at a dealership or repair shop?

- The cost of repairs can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor at a dealership or repair shop.

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