AutoCodes – Chrysler – U148C Chrysler

U148C Chrysler Code - Implausible Data Received From Stop/Start Button

Quick Answer

The Diagnostic Trouble Code (DTC) will set when the Powertrain Control Module (PCM) receives a Stop/Start Off/On button pressed signal for more than five continuous minutes. Common causes include Faulty Switch Bank Module, Switch Bank Module harness is open or shorted, Switch Bank 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: U148C Chrysler indicates Implausible Data Received From Stop/Start Button.
Common causes: Common causes include Faulty Switch Bank Module, Switch Bank Module harness is open or shorted, Switch Bank 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 528

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 31, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U148C Chrysler Description

The Diagnostic Trouble Code (DTC) will set when the Powertrain Control Module (PCM) receives a Stop/Start Off/On button pressed signal for more than five continuous minutes.

OBDII Code U148C Chrysler - Implausible Data Received From Stop/Start Button - AutoCodes.com — U148C Chrysler Code - Implausible Data Received From Stop/Start Button

What does this mean?

What are the Possible Causes of the DTC U148C Chrysler?

Faulty Switch Bank Module
Switch Bank Module harness is open or shorted
Switch Bank Module circuit poor electrical connection

How to Fix the DTC U148C 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 U148C 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 U148C Chrysler Code

1. What does the OBDII code U148C Chrysler mean?

The U148C code indicates that the vehicle's onboard diagnostic system has detected implausible data received from the stop/start button.

2. What are some common symptoms of the U148C code?

Common symptoms of the U148C code may include issues with the stop/start system functionality, such as the engine not turning off or restarting properly.

3. What can cause the U148C code to trigger?

The U148C code can be triggered by a faulty stop/start button, wiring issues, a malfunctioning stop/start system module, or a communication error within the vehicle's electronic system.

4. How do I diagnose the U148C code?

Diagnosing the U148C code typically involves inspecting the stop/start button, checking the wiring for any damage, and using a diagnostic scan tool to investigate the stop/start system module and communication network.

5. Can I still drive my vehicle with the U148C code present?

It is generally not recommended to drive the vehicle with the U148C code present, as it may lead to further issues with the stop/start system and potentially affect the overall performance of the vehicle.

6. How can I repair the U148C code?

Repairing the U148C code may involve replacing the faulty stop/start button, repairing any damaged wiring, replacing the stop/start system module, or addressing any communication errors within the vehicle's electronic system.

7. Will resetting the fault codes make the U148C code disappear?

Resetting the fault codes may temporarily clear the U148C code, but if the underlying issue is not addressed, the code is likely to reappear once the vehicle is driven again.

8. Is the U148C code specific to Chrysler vehicles?

Yes, the U148C code is specific to Chrysler vehicles and is related to issues with the stop/start system and associated components.

9. Can I fix the U148C code myself, or do I need a professional mechanic?

While some simple repairs like checking wiring connections can be done by DIY enthusiasts, diagnosing and repairing complex issues related to the U148C code may require the expertise of a professional mechanic.

10. How can I prevent the U148C code from reoccurring in the future?

To prevent the U148C code from reoccurring, it's essential to address any underlying issues promptly, perform regular maintenance on the stop/start system, and follow the manufacturer's recommended maintenance schedule.