P0652 2014 GMC Sierra Code - 5 Volt Reference 2 Circuit Low Voltage
Quick Answer
The P0652 diagnostic trouble code in a 2014 GMC Sierra indicates that the 5 Volt Reference 2 Circuit is registering a low voltage. Common causes include Faulty sensor: A defective sensor connected to the 5-volt reference circuit can cause the voltage to drop below the specified range, Damaged wiring: Corrosion, breaks, or shorts in the wiring harness that connects to the 5-volt reference circuit can lead to a low voltage condition, ECM issues: A problem with the engine control module (ECM) can disrupt the 5-volt reference circuit and trigger the P0652 code. 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: A defective sensor connected to the 5-volt reference circuit can cause the voltage to drop below the specified range, Damaged wiring: Corrosion, breaks, or shorts in the wiring harness that connects to the 5-volt reference circuit can lead to a low voltage condition, ECM issues: A problem with the engine control module (ECM) can disrupt the 5-volt reference circuit and trigger the P0652 code.
- 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 P0652 2014 GMC Sierra Description
The P0652 diagnostic trouble code in a 2014 GMC Sierra indicates that the 5 Volt Reference 2 Circuit is registering a low voltage. This code typically points to a problem with the 5-volt reference circuit, which is a crucial component in the vehicle's electronic control system. The 5-volt reference circuit is responsible for supplying a stable 5-volt voltage to various sensors and components throughout the vehicle, allowing them to function properly. When the voltage in this circuit drops below the specified range, it can lead to various issues in the vehicle's performance.
Common Causes of P0652 2014 GMC Sierra
- Faulty sensor: A defective sensor connected to the 5-volt reference circuit can cause the voltage to drop below the specified range.
- Damaged wiring: Corrosion, breaks, or shorts in the wiring harness that connects to the 5-volt reference circuit can lead to a low voltage condition.
- ECM issues: A problem with the engine control module (ECM) can disrupt the 5-volt reference circuit and trigger the P0652 code.
- Grounding issues: Poor grounding connections or a faulty ground wire can also cause the 5-volt reference circuit to register low voltage.
Symptoms of P0652 2014 GMC Sierra
- Check engine light: The most common symptom associated with the P0652 code is the illumination of the check engine light on the vehicle's dashboard.
- Erratic engine performance: The vehicle may experience rough idling, stalling, or hesitation during acceleration due to the low voltage in the 5-volt reference circuit.
- Poor fuel efficiency: A malfunction in the 5-volt reference circuit can lead to decreased fuel efficiency as the engine may not be operating at its optimal level.
- Issues with other electronic systems: The vehicle may experience malfunctions in other electronic systems, such as the transmission control module or ABS system, due to the low voltage in the circuit.
How to Fix P0652 2014 GMC Sierra
- Diagnose the issue: Use a diagnostic scanner to read the trouble code and conduct a thorough inspection of the 5-volt reference circuit, sensors, and wiring to identify the root cause of the problem.
- Repair or replace faulty components: Depending on the diagnosis, repair or replace any faulty sensors, wiring, or the ECM that are contributing to the low voltage in the 5-volt reference circuit.
- Clear the trouble code: After making the necessary repairs, clear the trouble code using the diagnostic scanner to reset the check engine light.
- Test drive the vehicle: Take the vehicle for a test drive to ensure that the issue has been resolved and that the engine is operating smoothly without any symptoms of the P0652 code.
- Monitor for recurrence: Keep an eye on the vehicle's performance and check for any reoccurrence of the P0652 code to ensure that the repair was successful.
Cost to Fix P0652 2014 GMC Sierra
The typical repair costs for addressing the P0652 code in a 2014 GMC Sierra can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, the parts required for this repair, such as sensors or wiring harnesses, can range from $50 to $200. Labor costs at auto repair shops typically range between $80 and $150 per hour. Therefore, the total repair cost for addressing the P0652 code could range from $150 to $500, including parts and
Tech Notes for P0652 2014 GMC Sierra
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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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.
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