AutoCodes – Dodge – U0423 Dodge

U0423 Dodge Code - Invalid Data Received From Instrument Panel Cluster Control Module

Quick Answer

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Common causes include Faulty Instrument Panel Cluster Control Module, Instrument Panel Cluster Control Module harness is open or shorted, Instrument Panel Cluster Control Module 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: U0423 Dodge indicates Invalid Data Received From Instrument Panel Cluster Control Module.
Common causes: Common causes include Faulty Instrument Panel Cluster Control Module, Instrument Panel Cluster Control Module harness is open or shorted, Instrument Panel Cluster Control Module 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 3,273

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 Apr 12, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U0423 Dodge Description

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Operating information and commands are exchanged among the devices. The devices have programmed information about what messages are needed to be exchanged on the serial data circuits. Some devices are constantly receiving information from other devices through serial data communication network. The invalid data Diagnostic Trouble Code (DTC) will be set when a receiving device detects a discrepancy in the information it receives from the Instrument Panel Cluster Control Module causing its integrity to be questioned.

OBDII Code U0423 Dodge - Invalid Data Received From Instrument Panel Cluster Control Module - AutoCodes.com — U0423 Dodge Code - Invalid Data Received From Instrument Panel Cluster Control Module

What does this mean?

What are the Possible Causes of the DTC U0423 Dodge?

Faulty Instrument Panel Cluster Control Module
Instrument Panel Cluster Control Module harness is open or shorted
Instrument Panel Cluster Control Module circuit poor electrical connection

How to Fix the DTC U0423 Dodge?

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 U0423 Dodge 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 U0423 Dodge Code

1. What are the common symptoms of OBDII code U0423 in a Dodge vehicle?

The common symptoms include malfunctioning gauges on the instrument cluster, flickering or dim lights, and intermittent power loss.

2. What does the OBDII code U0423 indicate in a Dodge vehicle?

The code U0423 indicates that the Engine Control Module (ECM) has detected invalid data received from the Instrument Panel Cluster Control Module.

3. What are the possible causes of OBDII code U0423 in a Dodge vehicle?

Possible causes include a faulty instrument panel cluster control module, damaged wiring or connectors, software issues, or a malfunctioning ECM.

4. How can I diagnose the cause of OBDII code U0423 in my Dodge vehicle?

Diagnosing the issue involves checking the wiring and connectors for damage, inspecting the instrument panel cluster control module for faults, and using a diagnostic scanner to analyze the data.

5. Can I continue driving my Dodge vehicle with OBDII code U0423 present?

It is not recommended to continue driving the vehicle with this code present, as it may lead to further electrical issues or potential safety hazards.

6. How can I repair OBDII code U0423 in my Dodge vehicle?

Repair options may include replacing the instrument panel cluster control module, repairing damaged wiring or connectors, updating software, or resetting the ECM.

7. Is it possible to reset OBDII code U0423 without fixing the underlying issue?

While you can clear the code with a diagnostic scanner, it is crucial to address the root cause to prevent the code from reoccurring.

8. Can a DIY enthusiast fix OBDII code U0423 in a Dodge vehicle?

Depending on your skill level and access to tools, some DIY enthusiasts may be able to diagnose and repair the issue, but it is advisable to seek professional help for complex electrical problems.

9. How much does it typically cost to repair OBDII code U0423 in a Dodge vehicle?

The cost of repairing this code can vary depending on the cause of the issue, the parts needed, and labor rates. It is recommended to obtain quotes from trusted mechanics or dealerships.

10. Will OBDII code U0423 cause my Dodge vehicle to fail an emissions test?

Since the code relates to instrument panel cluster communication, it may not directly impact emissions. However, it is essential to address the issue to ensure the overall health of the vehicle's electrical system.