AutoCodes – Chrysler – P0653 Chrysler

P0653 Chrysler 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 Chrysler 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 5,076

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

What does this mean?

What are the Possible Causes of the DTC P0653 Chrysler?

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 Chrysler?

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 Chrysler 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.

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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 Chrysler Code

What does the OBDII code P0653 mean for a Chrysler vehicle?

The P0653 code indicates that the 5 Volt Sensor Reference 2 Circuit is experiencing a high voltage issue, which means the voltage has exceeded the expected range.

What are common symptoms of the P0653 code?

Symptoms may include the Check Engine Light illuminating, poor engine performance, erratic sensor readings, and possible engine stalling.

What causes the P0653 code to appear?

Common causes include a short to voltage in the 5V reference circuit, a faulty sensor connected to the circuit, damaged wiring, or a malfunctioning Powertrain Control Module (PCM).

Can I drive my Chrysler with the P0653 code active?

While it may be possible to drive, it is not recommended as the code can cause engine performance issues and may lead to further damage if not addressed.

How is the P0653 code diagnosed?

A technician will use a scan tool to monitor sensor data, inspect the 5V reference circuit for wiring damage or shorts, and test sensors connected to the circuit for proper operation.

What sensors are typically connected to the 5V reference 2 circuit?

Sensors such as the throttle position sensor (TPS), manifold absolute pressure (MAP) sensor, and others may be connected to this circuit, depending on the vehicle.

How can the P0653 code be fixed?

Repairs may include fixing or replacing damaged wiring, replacing a faulty sensor, or reprogramming or replacing the PCM if it is determined to be defective.

Can a weak battery or alternator cause the P0653 code?

While unlikely, electrical system issues such as low voltage from a weak battery or failing alternator can potentially affect sensor circuits and should be checked.

What tools are needed to troubleshoot the P0653 code?

Basic tools include a scan tool, multimeter, and wiring diagrams to test voltage and continuity within the circuit and identify the fault.

How much does it cost to fix the P0653 code on a Chrysler?

The repair cost varies depending on the cause but typically ranges from $100 to $500, with sensor or wiring repairs being less expensive and PCM replacement being more costly.