P0653 GMC Code - 5 Volt Reference 2 Circuit High 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
- P0653 GMC indicates 5 Volt Reference 2 Circuit High 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 P0653 GMC Description
What are the Possible Causes of the DTC P0653 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 P0653 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 P0653 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 P0653 GMC code?
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Need Help with the Code?
Get the P0653 GMC code diagnosed by a professional: Find a repair shop in your area
Information for Specific GMC Models
- P0653 2014 GMC Sierra — 5 Volt Reference 2 Circuit High Voltage
- P0653 2015 GMC Sierra — 5 Volt Reference 2 Circuit High Voltage
- P0653 2016 GMC Sierra — 5 Volt Reference 2 Circuit High Voltage
- P0653 2017 GMC Sierra — 5 Volt Reference 2 Circuit High Voltage
- P0653 2018 GMC Sierra — 5 Volt Reference 2 Circuit High Voltage
Frequently Asked Questions about P0653 GMC Code
1. What are the common symptoms of OBDII code P0653 GMC (5 Volt Reference 2 Circuit High Voltage)?
The common symptoms include engine performance issues, illuminated Check Engine Light, and potential loss of communication with certain vehicle systems.
2. What can cause the OBDII code P0653 GMC to trigger?
The code is typically triggered by a fault in the 5-volt reference circuit, such as a short to power, a faulty sensor, a damaged wiring harness, or a problem with the Engine Control Module (ECM).
3. How can I diagnose the source of the OBDII code P0653 GMC?
Diagnosing the issue involves using a multimeter to test the 5-volt reference circuit, checking for short circuits, inspecting sensor connections, and performing a thorough visual inspection of the wiring.
4. Is it safe to drive with the OBDII code P0653 GMC active?
It is generally not recommended to drive with this code active, as it can lead to potential engine performance issues and affect the communication with critical vehicle systems.
5. Can I repair the OBDII code P0653 GMC myself?
Depending on your skill level and access to tools, you may be able to repair this code yourself by identifying and fixing the underlying issue causing the high voltage in the 5-volt reference circuit.
6. How much does it typically cost to repair the OBDII code P0653 GMC at a professional mechanic?
Repair costs can vary widely based on the root cause of the issue, but typically, you can expect to pay anywhere from $100 to $300 for parts and labor.
7. Are there any common mistakes to avoid when addressing the OBDII code P0653 GMC?
One common mistake to avoid is overlooking the possibility of a faulty sensor or a damaged wiring harness when diagnosing the issue, as these are frequent culprits for this code.
8. Will disconnecting the battery reset the OBDII code P0653 GMC?
Disconnecting the battery may temporarily clear the code, but it is not a recommended long-term solution, as the underlying issue causing the high voltage will persist and trigger the code again.
9. How urgent is it to address the OBDII code P0653 GMC once it appears?
It is advisable to address this code promptly to prevent potential damage to other vehicle components and ensure proper engine performance and communication with vehicle systems.
10. Can the OBDII code P0653 GMC cause permanent damage to my vehicle if left unaddressed?
Continued driving with this code active could potentially cause damage to the engine or other critical components, so it is best to address the issue as soon as possible.
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