P0652 2014 GMC Sierra 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 2014 GMC Sierra 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 2014 GMC Sierra Description
What are the Possible Causes of the DTC P0652 2014 GMC Sierra?
- 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 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.
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 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 P0652 2014 GMC Sierra code?
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Frequently Asked Questions about P0652 2014 GMC Sierra Code
1. What does the OBDII code P0652 mean on a 2014 GMC Sierra?
P0652 indicates a low voltage condition in the 5-volt reference circuit 2, which supplies voltage to various sensors in the vehicle.
2. What are the common symptoms of the P0652 code on a 2014 GMC Sierra?
Symptoms may include the check engine light turning on, reduced engine performance, erratic sensor readings, or the vehicle going into limp mode.
3. What sensors are typically affected by the 5-volt reference 2 circuit in a 2014 GMC Sierra?
Sensors that may be impacted include the throttle position sensor (TPS), manifold absolute pressure sensor (MAP), or fuel pressure sensor.
4. What causes the P0652 code to appear on a 2014 GMC Sierra?
Potential causes include a short to ground in the 5-volt reference circuit, a faulty sensor, damaged wiring, or a malfunctioning powertrain control module (PCM).
5. How can I diagnose the P0652 code on a 2014 GMC Sierra?
Diagnosis involves checking for shorts or opens in the 5-volt reference circuit, inspecting sensor connectors for damage, and using a multimeter to verify voltage levels.
6. Can a faulty PCM cause the P0652 code on a 2014 GMC Sierra?
Yes, a faulty PCM can cause the code if it fails to supply the correct 5-volt reference to the circuit.
7. Is it safe to drive with the P0652 code on a 2014 GMC Sierra?
Driving with this code is not recommended, as it can lead to reduced performance or safety concerns due to improper sensor operation.
8. What tools are needed to repair the P0652 code on a 2014 GMC Sierra?
You’ll need an OBDII scanner, a multimeter, and possibly wiring repair tools to check the circuit and resolve the issue.
9. How much does it cost to fix the P0652 code on a 2014 GMC Sierra?
Repair costs vary depending on the cause, ranging from $50 for minor wiring repairs to $500+ if a sensor or PCM needs replacement.
10. Can clearing the P0652 code fix the problem on a 2014 GMC Sierra?
Clearing the code may temporarily reset the system, but the underlying issue must be resolved to prevent the code from returning.
Discuss the causes and fixes for P0652 2014 GMC Sierra OBDII Code
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