AutoCodes – Chevrolet – P0653 2018 Chevrolet Silverado

P0653 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado 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 293

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 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado - 5 Volt Reference 2 Circuit High Voltage - AutoCodes.com — P0653 2018 Chevrolet Silverado Code - 5 Volt Reference 2 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0653 2018 Chevrolet Silverado?

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 2018 Chevrolet Silverado?

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 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado code?

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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 2018 Chevrolet Silverado Code

1. What does the OBDII code P0653 mean on a 2018 Chevrolet Silverado?

P0653 indicates a high voltage issue in the 5-volt reference 2 circuit, which supplies voltage to certain sensors in the vehicle.

2. What are the common symptoms of code P0653 on a 2018 Chevrolet Silverado?

Symptoms may include the check engine light turning on, erratic engine performance, sensor malfunctions, or issues with components like the throttle or fuel system.

3. What causes the P0653 code to appear on a 2018 Chevrolet Silverado?

Common causes include a short to voltage in the 5-volt reference circuit, a faulty sensor, damaged wiring, or a malfunctioning powertrain control module (PCM).

4. Can I drive my 2018 Chevrolet Silverado with a P0653 code?

Driving with a P0653 code is not recommended as it can affect engine performance and potentially cause further damage to the vehicle's electrical systems.

5. How do I diagnose the P0653 code on my 2018 Chevrolet Silverado?

Start by using a scan tool to confirm the code, then visually inspect the wiring and connectors for damage or corrosion. Test the 5-volt reference circuit for proper voltage with a multimeter.

6. What sensors are affected by the 5-volt reference 2 circuit in a 2018 Chevrolet Silverado?

Sensors such as the throttle position sensor (TPS), manifold absolute pressure (MAP) sensor, or fuel pressure sensor may rely on the 5-volt reference circuit.

7. How can I fix the P0653 code on my 2018 Chevrolet Silverado?

Repairs may involve fixing or replacing damaged wiring, cleaning corroded connectors, replacing a faulty sensor, or reprogramming or replacing the PCM if necessary.

8. How much does it cost to repair a P0653 code on a 2018 Chevrolet Silverado?

Repair costs can vary widely, from $50 for minor wiring repairs to $500 or more if the PCM or multiple sensors need replacement.

9. Can a weak battery cause a P0653 code on a 2018 Chevrolet Silverado?

While unlikely, a weak or failing battery can cause voltage irregularities that may indirectly contribute to electrical issues, including triggering the P0653 code.

10. Does the P0653 code require a software update for the PCM in a 2018 Chevrolet Silverado?

In some cases, a PCM software update may resolve the issue if it's related to a known glitch, but this depends on the specific circumstances and should be confirmed by a professional mechanic.