AutoCodes – GMC – P0653 2015 GMC Sierra

P0653 2015 GMC Sierra 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 2015 GMC Sierra 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.

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Code Popularity 167

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 17, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0653 2015 GMC Sierra Description

The Engine Control Module (ECM) has four (4) internal 5 Volt reference circuits (Some models have two (2) internal 5 Volt reference circuits). Each internal reference circuit provides external 5 Volt reference circuits for more than one sensor. A short to ground or short to voltage on one external 5 Volt reference circuit can affect all the components connected to the same internal 5 Volt reference circuit. The Diagnostic Trouble Code (DTC) will be set when the ECM detects a short to voltage or ground on any of the 5 Volt reference circuits for greater than 0.5 s.

OBDII Code P0653 2015 GMC Sierra - 5 Volt Reference 2 Circuit High Voltage - AutoCodes.com — P0653 2015 GMC Sierra Code - 5 Volt Reference 2 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0653 2015 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 P0653 2015 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.

What does this mean?

Code Tech Notes

Disconnecting one component at a time from the affected 5 Volt reference circuit while observing the scan tool 5 Volt Reference Circuit Status parameter may help locate the fault. The scan tool parameter will change from Malfunction to OK when the source of the fault is disconnected. If all 5 Volt reference components have been disconnected and a fault is still indicated, the fault may exist in the wiring harness.

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 2015 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.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0653 2015 GMC Sierra Code

1. What does OBDII code P0653 for a 2015 GMC Sierra mean?

Code P0653 indicates a high voltage condition in the 5 Volt Reference 2 Circuit of the vehicle's engine control module (ECM).

2. What are the common symptoms of OBDII code P0653 in a 2015 GMC Sierra?

Common symptoms include issues with engine performance, such as stalling, rough idling, or difficulty starting the vehicle. The check engine light may also be illuminated.

3. What are the possible causes of OBDII code P0653 in a 2015 GMC Sierra?

Potential causes include a faulty ECM, a short circuit in the 5 Volt Reference 2 Circuit, damaged wiring or connectors, or a failed sensor connected to the circuit.

4. How can I diagnose OBDII code P0653 in a 2015 GMC Sierra?

Diagnosis typically involves using a scan tool to read the code and then inspecting the wiring, connectors, and sensors associated with the 5 Volt Reference 2 Circuit for any visible damage or issues.

5. Can I still drive my 2015 GMC Sierra with OBDII code P0653?

It is not recommended to continue driving the vehicle with code P0653 present, as it can affect engine performance and potentially lead to further damage. It's best to address the issue promptly.

6. How can I repair OBDII code P0653 in a 2015 GMC Sierra?

Repair options may include replacing the ECM, repairing any damaged wiring or connectors, or replacing any faulty sensors connected to the 5 Volt Reference 2 Circuit.

7. Is OBDII code P0653 in a 2015 GMC Sierra a serious issue?

While the severity of the issue can vary, it is important to address code P0653 promptly to prevent potential damage to the engine or other components of the vehicle.

8. How much does it cost to fix OBDII code P0653 in a 2015 GMC Sierra?

The cost of repair can vary depending on the underlying cause of the code. It is advisable to consult a mechanic for a proper diagnosis and an accurate estimate.

9. Can I reset OBDII code P0653 in a 2015 GMC Sierra myself?

While you can clear the code using an OBDII scan tool, it is recommended to address the root cause of the issue first to prevent the code from reappearing.

10. Are there any preventive measures to avoid OBDII code P0653 in a 2015 GMC Sierra?

Regular vehicle maintenance, such as checking and replacing sensors and inspecting wiring harnesses, can help prevent issues like code P0653 from occurring.