AutoCodes – Jeep – P0653 Jeep

P0653 Jeep Code - 5 Volt Sensor Reference 2 Circuit High

Quick Answer

The control module has 2 internal 5-volt reference buses called "5-volt reference 1" and"5-volt reference 2". Common causes include Faulty Engine Control Module (ECM), ECM harness is open or shorted, ECM 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 Jeep indicates 5 Volt Sensor Reference 2 Circuit High.
Common causes: Common causes include Faulty Engine Control Module (ECM), ECM harness is open or shorted, ECM 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 7,394

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 May 02, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0653 Jeep Description

The control module has 2 internal 5-volt reference buses called "5-volt reference 1" and"5-volt reference 2". Each reference bus provided 5-volt reference circuit for more than one sensor. Therefore, a fault condition on one 5-volt reference circuit will affect the other 5-volt reference circuits connected to the reference bus. The control module monitors the voltage on the 5-volt reference buses.

OBDII Code P0653 Jeep - 5 Volt Sensor Reference 2 Circuit High - AutoCodes.com — P0653 Jeep Code - 5 Volt Sensor Reference 2 Circuit High

What does this mean?

What are the Possible Causes of the DTC P0653 Jeep?

Faulty Engine Control Module (ECM)
ECM harness is open or shorted
ECM circuit poor electrical connection
Shorted sensor on 5 volt circuit

How to Fix the DTC P0653 Jeep?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0653 Jeep 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 Jeep code?

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Need Help with the 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 Jeep Code

1. What does the OBDII code P0653 mean on a Jeep?

P0653 indicates a "5 Volt Sensor Reference 2 Circuit High," meaning the voltage in the 5-volt reference circuit from the PCM (Powertrain Control Module) is higher than expected.

2. What are common symptoms of code P0653 in a Jeep?

Symptoms may include the Check Engine Light turning on, poor engine performance, hesitation, stalling, or improper readings from sensors connected to the 5-volt reference circuit.

3. What causes the P0653 code in a Jeep?

Common causes include a short to voltage in the reference circuit, a faulty sensor, damaged wiring, or a malfunctioning Powertrain Control Module (PCM).

4. Can a bad sensor trigger the P0653 code?

Yes, a faulty sensor connected to the 5-volt reference 2 circuit can cause it to draw excessive voltage or fail, triggering the P0653 code.

5. How do you diagnose the P0653 code on a Jeep?

Start by inspecting the wiring and connectors for damage, check the voltage on the 5-volt reference circuit with a multimeter, and test the sensors connected to the circuit. If no issues are found, the PCM may need to be checked.

6. Is the P0653 code serious?

Yes, it can be serious because it may affect sensor readings and engine performance. Ignoring it could lead to further damage or drivability issues.

7. Can I drive my Jeep with the P0653 code?

Itâ€™s not recommended to drive with this code active, as it can cause poor engine performance or lead to unsafe driving conditions.

8. How do you fix the P0653 code on a Jeep?

Repairs may include repairing or replacing damaged wiring, replacing a faulty sensor, or, in rare cases, replacing the PCM if itâ€™s determined to be defective.

9. Can a loose connector cause the P0653 code?

Yes, a loose or corroded connector in the 5-volt reference circuit can cause high voltage readings and trigger the P0653 code.

10. How much does it cost to repair the P0653 code on a Jeep?

The cost varies depending on the issue. Sensor replacement may cost $100-$300, while PCM replacement can exceed $500, plus labor. Simple wiring repairs may be less expensive.