AutoCodes – Chevrolet – P0653 Chevrolet

P0653 Chevrolet 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 Chevrolet 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 3,420

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 Chevrolet 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 Chevrolet - 5 Volt Reference 2 Circuit High Voltage - AutoCodes.com — P0653 Chevrolet Code - 5 Volt Reference 2 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0653 Chevrolet?

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 Chevrolet?

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 Chevrolet 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 Chevrolet code?

Need more information on how to fix the P0653 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0653 Chevrolet code diagnosed by a professional: Find a repair shop in your area

Information for Specific Chevrolet Models

P0653 2014 Chevrolet Silverado — 5 Volt Reference 2 Circuit High Voltage
P0653 2015 Chevrolet Silverado — 5 Volt Reference 2 Circuit High Voltage
P0653 2016 Chevrolet Silverado — 5 Volt Reference 2 Circuit High Voltage
P0653 2017 Chevrolet Silverado — 5 Volt Reference 2 Circuit High Voltage
P0653 2018 Chevrolet Silverado — 5 Volt Reference 2 Circuit High Voltage

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 Chevrolet Code

1. What does OBDII code P0653 for Chevrolet mean?

The P0653 code refers to 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 Chevrolet vehicle?

Common symptoms of P0653 include check engine light illumination, reduced engine power, poor acceleration, and potential issues with the vehicle's electrical systems.

3. What are the possible causes of OBDII code P0653 in a Chevrolet?

Possible causes of P0653 include a faulty ECM, damaged wiring or connectors in the 5 Volt Reference 2 Circuit, short circuits, or issues with sensors connected to the circuit.

4. How can I diagnose OBDII code P0653 in my Chevrolet?

Diagnosing P0653 typically involves using a scan tool to read the code, testing the 5 Volt Reference 2 Circuit for voltage irregularities, inspecting wiring and connectors for damage, and performing a thorough visual inspection of related components.

5. How serious is OBDII code P0653 in a Chevrolet?

While the vehicle may still be operable with P0653 present, it is important to address the issue promptly to prevent potential damage to the ECM and other electrical components.

6. Can I drive my Chevrolet with OBDII code P0653?

It is generally not recommended to drive the vehicle with an unresolved P0653 code, as it may lead to performance issues and potentially cause further damage to the vehicle.

7. How much does it cost to repair OBDII code P0653 in a Chevrolet?

The cost of repairing P0653 can vary depending on the specific cause of the issue, but it may range from a simple wiring repair to a more complex ECM replacement, potentially costing several hundred dollars.

8. Can I repair OBDII code P0653 in my Chevrolet myself?

If you have the necessary tools, knowledge, and experience working with automotive electrical systems, you may be able to diagnose and repair P0653 yourself. However, it is recommended to consult a professional if you are unsure.

9. Will OBDII code P0653 cause my Chevrolet to fail an emissions test?

Yes, if the check engine light is on due to P0653, your Chevrolet may fail an emissions test depending on the regulations in your area. It is important to address the issue before undergoing an emissions test.

10. How can I prevent OBDII code P0653 from occurring in my Chevrolet?

To prevent P0653, it is essential to perform regular vehicle maintenance, address any electrical issues promptly, and avoid overloading the vehicle's electrical system with aftermarket accessories.