AutoCodes – Generic – U1184

U1184 Code - Invalid Or Missing Data For Window Wiper / Washer

Quick Answer

Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Common causes include Faulty Module that is not communicating, Module harness is open or shorted, 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: U1184 indicates Invalid Or Missing Data For Window Wiper / Washer.
Common causes: Common causes include Faulty Module that is not communicating, Module harness is open or shorted, 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 5,265

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 26, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U1184 Description

Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the modules. When a module receives a message for a critical operating parameter, the module records the identification number of the module which sent the message for State of Health monitoring. A critical operating parameter is one which, when not received, requires that the module use a default value for that parameter. When a module does not associate an identification number with at least one critical parameter within 5 seconds of beginning serial data communication, the Diagnostic Trouble Code (DTC) is set.

OBDII Code U1184 - Invalid Or Missing Data For Window Wiper / Washer - AutoCodes.com — U1184 Code - Invalid Or Missing Data For Window Wiper / Washer

What does this mean?

What are the Possible Causes of the DTC U1184?

Faulty Module that is not communicating
Module harness is open or shorted
Module circuit poor electrical connection

How to Fix the DTC U1184?

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 U1184 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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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 U1184 Code

1. What are the common symptoms of OBDII code U1184 related to the window wiper/washer system?

The common symptoms include malfunctioning wipers or washers, erratic wiper movement, or complete failure of the wiper/washer system.

2. What are the potential causes of OBDII code U1184 for the window wiper/washer system?

Possible causes include a faulty wiper motor, damaged wiper linkage, wiring issues, a malfunctioning wiper switch, or a problem with the washer pump.

3. How can I diagnose the OBDII code U1184 for the window wiper/washer system?

Diagnosing this code involves checking the wiper motor, inspecting the wiring for any damages, testing the washer pump, and ensuring the wiper switch is functioning correctly using a diagnostic tool.

4. Can OBDII code U1184 be triggered by a simple issue like low washer fluid?

Yes, sometimes the code can be triggered by low washer fluid levels, so it's recommended to check the washer fluid reservoir and top it up if necessary before further diagnostics.

5. What are some repair tips for resolving OBDII code U1184 related to the window wiper/washer system?

Repair tips include checking and repairing any damaged wiring, replacing a faulty wiper motor or washer pump, lubricating the wiper linkage, and ensuring all connections are secure.

6. Is it safe to continue driving with OBDII code U1184 related to the window wiper/washer system?

It is not recommended to drive with malfunctioning wipers or washers as it can compromise visibility during adverse weather conditions, increasing the risk of accidents.

7. How much does it typically cost to repair OBDII code U1184 for the window wiper/washer system?

The cost of repair can vary depending on the exact cause of the issue, but it may range from a simple fix like replacing a fuse or topping up washer fluid to more complex repairs involving components replacement.

8. Can a DIY enthusiast fix OBDII code U1184 related to the window wiper/washer system?

Depending on the specific issue, some DIY enthusiasts may be able to address simple causes like replacing a fuse or checking the washer fluid level. However, more complex problems may require professional help.

9. Will resetting the OBDII code U1184 resolve the issue with the window wiper/washer system?

Resetting the code may clear it temporarily, but if the underlying issue causing the code is not addressed, it is likely to reappear. It's essential to diagnose and fix the root cause to prevent further problems.

10. Are there any preventive maintenance tips to avoid encountering OBDII code U1184 for the window wiper/washer system?

Regularly checking and maintaining the wiper blades, ensuring the washer fluid is topped up, and inspecting the wiper system for any signs of wear can help prevent issues that may trigger this code.