P0652 Chevrolet Code - 5 Volt Reference 2 Circuit Low Voltage
Quick Answer
The Engine Control Module (ECM) has four (4) internal 5 Volt reference circuits (Some models have two (2) internal 5 Volt reference circuits). Common causes include Faulty Sensor on 5 Volt circuit, Sensor on 5 Volt circuit harness is open or shorted, Sensor on 5 Volt 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
- P0652 Chevrolet indicates 5 Volt Reference 2 Circuit Low Voltage.
- Common causes
- Common causes include Faulty Sensor on 5 Volt circuit, Sensor on 5 Volt circuit harness is open or shorted, Sensor on 5 Volt 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 P0652 Chevrolet Description
What are the Possible Causes of the DTC P0652 Chevrolet?
- Faulty Sensor on 5 Volt circuit
- Sensor on 5 Volt circuit harness is open or shorted
- Sensor on 5 Volt circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0652 Chevrolet?
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.
Code Tech Notes
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
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0652 Chevrolet 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 P0652 Chevrolet code?
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Need Help with the Code?
Get the P0652 Chevrolet code diagnosed by a professional: Find a repair shop in your area
Information for Specific Chevrolet Models
- P0652 2014 Chevrolet Silverado — 5 Volt Reference 2 Circuit Low Voltage
- P0652 2015 Chevrolet Silverado — 5 Volt Reference 2 Circuit Low Voltage
- P0652 2016 Chevrolet Silverado — 5 Volt Reference 2 Circuit Low Voltage
- P0652 2017 Chevrolet Silverado — 5 Volt Reference 2 Circuit Low Voltage
- P0652 2018 Chevrolet Silverado — 5 Volt Reference 2 Circuit Low Voltage
Frequently Asked Questions about P0652 Chevrolet Code
1. What does the OBDII code P0652 mean for a Chevrolet?
P0652 indicates a low voltage issue in the 5-volt reference 2 circuit, which supplies power to various sensors in the vehicle.
2. What are the common symptoms of code P0652 in a Chevrolet?
Symptoms may include the check engine light turning on, poor engine performance, stalling, misfires, or issues with systems relying on sensor data.
3. What causes the P0652 code to appear in a Chevrolet?
Common causes include a short to ground, a faulty sensor connected to the 5-volt reference 2 circuit, damaged wiring, or a failing engine control module (ECM).
4. Which sensors might be affected by a P0652 code in a Chevrolet?
Sensors that may be affected include the throttle position sensor, manifold absolute pressure sensor, or fuel pressure sensor, among others.
5. How can I diagnose the P0652 code in my Chevrolet?
Start by checking for damaged or shorted wiring, inspecting the affected sensors for faults, and testing the 5-volt reference circuit with a multimeter.
6. Can I still drive my Chevrolet with a P0652 code?
Driving with this code is not recommended, as it can cause engine performance issues and potentially damage other components if not addressed.
7. How do I fix the P0652 code on my Chevrolet?
Repairs may include replacing damaged wiring, fixing shorts to ground, replacing a faulty sensor, or reprogramming or replacing the ECM if necessary.
8. How much does it cost to fix a P0652 code on a Chevrolet?
The repair cost varies depending on the cause, ranging from $50 for minor wiring repairs to $1,000+ if the ECM needs replacement.
9. Can a faulty ECM cause the P0652 code in a Chevrolet?
Yes, a faulty ECM can fail to maintain the proper 5-volt reference, triggering the P0652 code.
10. What tools are needed to troubleshoot the P0652 code in a Chevrolet?
You’ll typically need an OBDII scanner, a digital multimeter, and wiring diagrams specific to your Chevrolet model.
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