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Engine-Codes – Chevrolet – P0653 2015 Chevrolet Silverado

P0653 2015 Chevrolet Silverado Code - 5 Volt Reference 2 Circuit High Voltage

Quick Answer

The P0653 diagnostic trouble code (DTC) for a 2015 Chevrolet Silverado refers to a 5 Volt Reference 2 Circuit High Voltage. Common causes include Short circuit in the wiring harness, Faulty sensor or component drawing too much voltage, PCM malfunction. 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 Chevrolet Silverado indicates 5 Volt Reference 2 Circuit High Voltage.
Common causes
Common causes include Short circuit in the wiring harness, Faulty sensor or component drawing too much voltage, PCM malfunction.
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 12, 2024
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Code P0653 2015 Chevrolet Silverado Description

The P0653 diagnostic trouble code (DTC) for a 2015 Chevrolet Silverado refers to a 5 Volt Reference 2 Circuit High Voltage. This code indicates that the powertrain control module (PCM) has detected a higher than normal voltage on the 5-volt reference circuit 2. This circuit provides a 5-volt reference signal to various sensors and components throughout the vehicle. When the voltage on this circuit is too high, it can cause issues with the proper operation of these sensors and components, leading to potential performance problems.

OBDII Code P0653 2015 Chevrolet Silverado - 5 Volt Reference 2 Circuit High Voltage
P0653 2015 Chevrolet Silverado Code - 5 Volt Reference 2 Circuit High Voltage

Common Causes of P0653 2015 Chevrolet Silverado

  1. Short circuit in the wiring harness
  2. Faulty sensor or component drawing too much voltage
  3. PCM malfunction
  4. Corrosion or poor connections in the wiring

Symptoms of P0653 2015 Chevrolet Silverado

  1. Engine misfires or runs rough
  2. Check Engine Light illuminated
  3. Reduced fuel efficiency
  4. Vehicle stalling or hesitating
  5. Issues with starting or idling

How to Fix P0653 2015 Chevrolet Silverado

  1. Perform a thorough inspection of the wiring harness for any signs of damage or shorts.
  2. Test the sensors and components connected to the 5-volt reference circuit for proper operation.
  3. Check the PCM for any faults or errors and reprogram or replace if necessary.
  4. Repair or replace any damaged wiring or connectors in the circuit.
  5. Clear the DTC and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0653 2015 Chevrolet Silverado

The typical repair costs for addressing a P0653 DTC on a 2015 Chevrolet Silverado can vary depending on the exact cause of the issue. In general, the cost for parts such as sensors, wiring harnesses, or the PCM itself can range from $100 to $500. Labor costs at auto repair shops typically range from $80 to $150 per hour, with the total repair process taking 1-2 hours on average. Therefore, the total repair cost could be anywhere from $180 to $800, including parts and labor. It's advisable to contact local auto repair shops for more accurate estimates based on your specific location and vehicle details.

What does this mean?

Tech Notes for P0653 2015 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 2015 Chevrolet Silverado Code

1. What does the P0653 code mean on a 2015 Chevrolet Silverado?

The P0653 code indicates a high voltage issue in the 5 Volt Reference 2 Circuit, which is used to supply a stable voltage to various engine sensors.

2. What are the common symptoms of the P0653 code on a 2015 Chevrolet Silverado?

Symptoms may include an illuminated check engine light, poor engine performance, erratic sensor readings, or the engine entering "limp mode."

3. What causes the P0653 code to appear on a 2015 Chevrolet Silverado?

Common causes include a short to voltage in the 5 Volt Reference 2 Circuit, faulty sensors, damaged wiring, or a malfunctioning engine control module (ECM).

4. How do I diagnose the P0653 code on a 2015 Chevrolet Silverado?

Start by checking the wiring and connectors for damage or corrosion, inspect the sensors connected to the 5 Volt Reference 2 Circuit, and test the circuit for voltage irregularities.

5. Can a bad sensor trigger the P0653 code on a 2015 Chevrolet Silverado?

Yes, a faulty sensor that uses the 5 Volt Reference 2 Circuit can cause this code by creating a short or abnormal voltage condition.

6. How do I fix the P0653 code on a 2015 Chevrolet Silverado?

Repairs may include repairing or replacing damaged wiring, cleaning corroded connectors, replacing faulty sensors, or reprogramming or replacing the ECM if necessary.

7. Is it safe to drive with a P0653 code on a 2015 Chevrolet Silverado?

It is not recommended, as the code can affect engine performance, potentially causing unsafe driving conditions or further damage to components.

8. Which sensors are connected to the 5 Volt Reference 2 Circuit in a 2015 Chevrolet Silverado?

Common sensors include the throttle position sensor (TPS), manifold absolute pressure (MAP) sensor, and other critical engine sensors.

9. How much does it cost to fix the P0653 code on a 2015 Chevrolet Silverado?

Repair costs vary depending on the issue but can range from $100 for minor wiring repairs to $1,000 or more if the ECM needs replacement.

10. Can clearing the code with a scanner fix the P0653 issue on a 2015 Chevrolet Silverado?

Clearing the code without addressing the root cause will not fix the problem, and the code is likely to return. Proper diagnosis and repair are necessary.

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