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P0653 2014 Chevrolet Silverado Code - 5 Volt Reference 2 Circuit High Voltage

Quick Answer

The P0653 diagnostic trouble code (DTC) for a 2014 Chevrolet Silverado indicates a problem with the 5 Volt Reference 2 Circuit High Voltage. Common causes include Wiring harness damage or corrosion, Faulty ECM, Short circuit in the 5 Volt Reference 2 Circuit. 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 2014 Chevrolet Silverado indicates 5 Volt Reference 2 Circuit High Voltage.
Common causes
Common causes include Wiring harness damage or corrosion, Faulty ECM, Short circuit in the 5 Volt Reference 2 Circuit.
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 16, 2024
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Code P0653 2014 Chevrolet Silverado Description

The P0653 diagnostic trouble code (DTC) for a 2014 Chevrolet Silverado indicates a problem with the 5 Volt Reference 2 Circuit High Voltage. In modern vehicles, the Engine Control Module (ECM) provides a 5-volt reference signal to various sensors and components throughout the vehicle. This reference voltage is crucial for the proper operation of these sensors and components. When the ECM detects that the voltage on the 5 Volt Reference 2 Circuit is higher than normal, it triggers the P0653 code.

OBDII Code P0653 2014 Chevrolet Silverado - 5 Volt Reference 2 Circuit High Voltage
P0653 2014 Chevrolet Silverado Code - 5 Volt Reference 2 Circuit High Voltage

Common Causes of P0653 2014 Chevrolet Silverado

  1. Wiring harness damage or corrosion.
  2. Faulty ECM.
  3. Short circuit in the 5 Volt Reference 2 Circuit.
  4. Malfunctioning sensor drawing excessive voltage.
  5. Poor electrical connections.

Symptoms of P0653 2014 Chevrolet Silverado

  1. Check Engine Light illuminated on the dashboard.
  2. Reduced engine performance or rough idling.
  3. Inaccurate or erratic gauge readings.
  4. Vehicle going into limp mode.
  5. Electrical issues such as flickering lights or malfunctioning accessories.

How to Fix P0653 2014 Chevrolet Silverado

  1. Diagnose the issue using a scan tool to pinpoint the exact cause of the high voltage on the 5 Volt Reference 2 Circuit.
  2. Inspect the wiring harness for any damage, corrosion, or loose connections. Repair or replace as needed.
  3. Test the ECM for proper function and replace if faulty.
  4. Check for a short circuit in the 5 Volt Reference 2 Circuit and repair as necessary.
  5. Replace any sensors that are drawing too much voltage and causing the high voltage condition.

Cost to Fix P0653 2014 Chevrolet Silverado

The cost of repairing a P0653 code on a 2014 Chevrolet Silverado can vary depending on the exact cause of the issue and the labor rates in your area. On average, the repair costs for this type of issue can range from $200 to $500, including parts and labor. It's important to note that diagnostic time and labor rates can vary, so it's recommended to get a specific estimate from a local auto repair shop. Keep in mind that rates may be higher at dealerships or in metropolitan areas, while independent shops may offer more competitive pricing.

What does this mean?

Tech Notes for P0653 2014 Chevrolet Silverado

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

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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 2014 Chevrolet Silverado Code

1. What does the OBDII code P0653 mean on a 2014 Chevrolet Silverado?

P0653 indicates a "5 Volt Reference 2 Circuit High Voltage" issue, meaning the voltage in the 5-volt reference circuit is higher than expected.

2. What are the symptoms of the P0653 code in a 2014 Chevrolet Silverado?

Symptoms may include the check engine light turning on, poor engine performance, issues with sensors like the throttle position sensor or MAP sensor, and possible failure of certain vehicle systems.

3. What causes the P0653 code to appear on a 2014 Chevrolet Silverado?

Common causes include a short to voltage in the 5-volt reference circuit, a faulty sensor, wiring issues, a bad PCM (Powertrain Control Module), or corroded/loose electrical connections.

4. Can I drive my 2014 Chevrolet Silverado with a P0653 code?

While the vehicle may still be drivable, it could experience performance issues or other malfunctions. Driving without addressing the issue could result in further damage.

5. How do I diagnose the P0653 code on a 2014 Chevrolet Silverado?

Start by using a scan tool to confirm the code, inspect the wiring and connectors for damage or corrosion, test the 5-volt reference circuit for proper voltage, and check the sensors connected to the circuit.

6. Which sensors are typically associated with the P0653 code in a 2014 Chevrolet Silverado?

Sensors that rely on the 5-volt reference circuit include the throttle position sensor (TPS), manifold absolute pressure (MAP) sensor, and others.

7. Can a faulty PCM cause the P0653 code on a 2014 Chevrolet Silverado?

Yes, a malfunctioning PCM can cause this code, though it’s less common. It should only be considered after ruling out wiring, connectors, and sensor issues.

8. What tools are needed to fix the P0653 code on a 2014 Chevrolet Silverado?

You’ll need a scan tool, a multimeter to test voltage, and potentially wiring repair tools if damaged wires or connectors are found.

9. How much does it cost to fix a P0653 code on a 2014 Chevrolet Silverado?

Repair costs vary depending on the issue. Wiring repairs or sensor replacements may cost $100–$300, while PCM replacement can be $500 or more.

10. Can resetting the check engine light fix the P0653 code in a 2014 Chevrolet Silverado?

Resetting the light may temporarily turn it off, but the underlying issue must be resolved to prevent the code from returning.

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