P0652 GMC 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 GMC 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 GMC Description
What are the Possible Causes of the DTC P0652 GMC?
- 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 GMC?
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 GMC 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 GMC code?
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Need Help with the Code?
Get the P0652 GMC code diagnosed by a professional: Find a repair shop in your area
Information for Specific GMC Models
- P0652 2014 GMC Sierra — 5 Volt Reference 2 Circuit Low Voltage
- P0652 2015 GMC Sierra — 5 Volt Reference 2 Circuit Low Voltage
- P0652 2016 GMC Sierra — 5 Volt Reference 2 Circuit Low Voltage
- P0652 2017 GMC Sierra — 5 Volt Reference 2 Circuit Low Voltage
- P0652 2018 GMC Sierra — 5 Volt Reference 2 Circuit Low Voltage
Frequently Asked Questions about P0652 GMC Code
1. What are common symptoms of OBDII code P0652 GMC?
The common symptoms of code P0652 include check engine light illumination, loss of communication with vehicle modules, and potential drivability issues.
2. What does the OBDII code P0652 GMC indicate?
Code P0652 indicates a low voltage condition in the 5 Volt Reference 2 Circuit, typically related to a malfunction in the sensor or its wiring.
3. What are possible causes of OBDII code P0652 GMC?
Possible causes of code P0652 include a faulty 5-volt reference circuit, damaged wiring or connectors, a defective sensor, or issues with the engine control module (ECM).
4. How can I diagnose OBDII code P0652 GMC?
Diagnosing code P0652 involves using a scan tool to retrieve the trouble code and then testing the 5-volt reference circuit, sensor, and related components for proper voltage, continuity, and resistance.
5. What are some tips for repairing OBDII code P0652 GMC?
Repair tips for code P0652 may include checking and repairing any damaged wiring or connectors, replacing the faulty sensor, ensuring proper grounding, and resetting the fault code after repairs are completed.
6. Can OBDII code P0652 GMC be fixed without professional help?
While some DIY enthusiasts may be able to diagnose and repair code P0652, it is recommended to seek professional help if you are not familiar with automotive electrical systems to avoid further damage or misdiagnosis.
7. Is it safe to continue driving with OBDII code P0652 GMC present?
It is generally not recommended to drive with code P0652 present, as it can lead to potential drivability issues and may cause further damage to the vehicle if left unaddressed.
8. How much does it typically cost to repair OBDII code P0652 GMC?
The cost of repairing code P0652 can vary depending on the underlying cause of the issue, the labor rates in your area, and whether you choose to address the problem yourself or take it to a professional mechanic.
9. Can a low voltage battery cause OBDII code P0652 GMC to trigger?
While a low voltage battery can potentially cause electrical issues in a vehicle, it is not a common cause of code P0652. It is recommended to check the specific components related to the 5-volt reference circuit for this fault code.
10. How long does it take to repair OBDII code P0652 GMC?
The time it takes to repair code P0652 can vary depending on the complexity of the issue, the availability of parts, and your level of experience with automotive repairs. In some cases, it can be resolved in a few hours, while more complex issues may take longer to diagnose and repair.
Discuss the causes and fixes for P0652 GMC OBDII Code
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I have a 2004 GMC Sierra 2500 HD with A p0652 code. No throttle response. Changed tpp sensor and it fixed it overnight. This morning same issue. Changed throttle pedal position sensor again and still nothing. Have ignition voltage
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