Engine-Codes.com
Engine-Codes – Chevrolet – P0653 Chevrolet

P0653 Chevrolet Code - 5 Volt Reference 2 Circuit High Voltage

Quick Answer

The P0653 Chevrolet diagnostic trouble code (DTC) refers to a 5 Volt Reference 2 Circuit High Voltage. Common causes include Wiring Faults: Damaged or corroded wiring in the 5 Volt Reference 2 circuit can cause high voltage conditions and trigger the P0653 code, Faulty ECM: A malfunctioning ECM can send incorrect voltage signals to the sensors and components, resulting in a high voltage condition, Short Circuit: A short circuit in the 5 Volt Reference 2 circuit can cause a surge in voltage, triggering the P0653 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
P0653 Chevrolet indicates 5 Volt Reference 2 Circuit High Voltage.
Common causes
Common causes include Wiring Faults: Damaged or corroded wiring in the 5 Volt Reference 2 circuit can cause high voltage conditions and trigger the P0653 code, Faulty ECM: A malfunctioning ECM can send incorrect voltage signals to the sensors and components, resulting in a high voltage condition, Short Circuit: A short circuit in the 5 Volt Reference 2 circuit can cause a surge in voltage, triggering the P0653 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.
What is this?
Table of contents Created and updated by William Orellana on Sep 06, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0653 Chevrolet Description

The P0653 Chevrolet diagnostic trouble code (DTC) refers to a 5 Volt Reference 2 Circuit High Voltage. In modern vehicles, the Engine Control Module (ECM) or Powertrain Control Module (PCM) uses 5-volt reference circuits to supply power to various sensors and components throughout the vehicle. These sensors and components rely on this stable voltage to function properly and provide accurate data to the ECM for optimal engine performance.

OBDII Code P0653 Chevrolet - 5 Volt Reference 2 Circuit High Voltage
P0653 Chevrolet Code - 5 Volt Reference 2 Circuit High Voltage

Common Causes of P0653 Chevrolet

  1. Wiring Faults: Damaged or corroded wiring in the 5 Volt Reference 2 circuit can cause high voltage conditions and trigger the P0653 code.
  2. Faulty ECM: A malfunctioning ECM can send incorrect voltage signals to the sensors and components, resulting in a high voltage condition.
  3. Short Circuit: A short circuit in the 5 Volt Reference 2 circuit can cause a surge in voltage, triggering the P0653 code.
  4. Malfunctioning Sensor or Component: A faulty sensor or component that is connected to the 5 Volt Reference 2 circuit can draw excess voltage, leading to a high voltage condition.

Symptoms of P0653 Chevrolet

  1. Check Engine Light: The most common symptom associated with the P0653 code is the illumination of the check engine light on the vehicle's dashboard.
  2. Engine Performance Issues: High voltage in the 5 Volt Reference 2 circuit can lead to engine performance issues such as rough idling, stalling, or hesitation during acceleration.
  3. Faulty Sensor Readings: Sensors relying on the 5-volt reference circuit may provide inaccurate or erratic readings, affecting the vehicle's overall performance.
  4. Electrical Malfunctions: The high voltage condition can cause electrical malfunctions in various systems of the vehicle, leading to issues with lights, gauges, or other electronic components.

How to Fix P0653 Chevrolet

  1. Diagnose the Issue: Use a diagnostic scanner to retrieve the P0653 code and perform a thorough inspection of the 5 Volt Reference 2 circuit and related components.
  2. Check Wiring: Inspect the wiring in the circuit for any damage or corrosion and repair or replace as necessary.
  3. Test Sensors and Components: Check the sensors and components connected to the 5 Volt Reference 2 circuit for proper functionality and replace any faulty parts.
  4. Reset the ECM: Clear the code from the ECM's memory and reset the system to see if the issue persists.
  5. Recheck and Test Drive: After repairs are complete, recheck the system for any remaining issues and test drive the vehicle to ensure that the problem has been resolved.

Cost to Fix P0653 Chevrolet

The cost of repairing the P0653 Chevrolet code can vary depending on the specific cause of the issue and the parts and labor required for the repair. On average, the repair cost for this issue can range from $100 to $500, including parts and labor. However, it's important to note that diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's recommended to check with local repair shops for a more accurate estimate based on your specific circumstances. Keep in mind that rates may be higher at dealerships or in metropolitan areas, while independent shops may offer lower prices for the repair.

What does this mean?

Tech Notes for P0653 Chevrolet

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

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

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.

Discuss the causes and fixes for P0653 Chevrolet OBDII Code

Submit a New Comment

Code P0653 Chevrolet comments

No comments found for this page.