AutoCodes – Chrysler – U121E Chrysler

U121E Chrysler Code - Lost Communication With Steering Wheel Cruise Control Switch

Quick Answer

The Steering Column Control Module (SCCM) is located near the top of the Steering Column underneath the Steering Wheel. Common causes include Faulty Steering Wheel Cruise Control Switch, Steering Wheel Cruise Control Switch harness is open or shorted, Steering Wheel Cruise Control Switch 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: U121E Chrysler indicates Lost Communication With Steering Wheel Cruise Control Switch.
Common causes: Common causes include Faulty Steering Wheel Cruise Control Switch, Steering Wheel Cruise Control Switch harness is open or shorted, Steering Wheel Cruise Control Switch 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 1,903

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 04, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U121E Chrysler Description

The Steering Column Control Module (SCCM) is located near the top of the Steering Column underneath the Steering Wheel. The SCCM includes the Clockspring, the Multi-Function Switch and a Local Interconnect Network (LIN)/Controller Area Network (CAN) C Gateway. LIN Bus messages received by the LIN/CAN C Gateway are broadcast over the CAN C Bus to the appropriate modules.
The Right Steering Wheel Switch (Speed Control Switch) communicates with the Steering Column Control Module (SCCM) through a dedicated LIN Bus. When the SCCM receives a LIN Bus message from the Right Steering Wheel Switch, the SCCM will send a message over the CAN C Bus to the appropriate modules.
The Diagnostic Trouble Code (DTC) sets if the Steering Column Control Module (SCCM) does not detect any communication with the Right Steering Wheel Switch (Speed Control) for greater than five seconds.

OBDII Code U121E Chrysler - Lost Communication With Steering Wheel Cruise Control Switch - AutoCodes.com — U121E Chrysler Code - Lost Communication With Steering Wheel Cruise Control Switch

What does this mean?

What are the Possible Causes of the DTC U121E Chrysler?

Faulty Steering Wheel Cruise Control Switch
Steering Wheel Cruise Control Switch harness is open or shorted
Steering Wheel Cruise Control Switch circuit poor electrical connection
Faulty Steering Column Control Module (SCCM)

How to Fix the DTC U121E 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 U121E 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 U121E Chrysler Code

1. What are the common symptoms of OBDII code U121E in a Chrysler related to lost communication with the steering wheel cruise control switch?

- Common symptoms may include the inability to engage or control the cruise control system, illuminated warning lights on the dashboard, and possible loss of other steering wheel control functions.

2. What are some possible causes of OBDII code U121E in a Chrysler indicating a lost communication issue with the cruise control switch?

- Possible causes may include a faulty cruise control switch, damaged wiring or connectors in the steering wheel column, a defective clock spring, or issues with the steering control module.

3. How can I diagnose the source of the U121E code in my Chrysler when experiencing a communication problem with the steering wheel cruise control switch?

- To diagnose the issue, you can use a scan tool to retrieve the specific trouble codes, visually inspect the wiring and connectors in the steering wheel column, and perform tests to check the functionality of the cruise control switch and related components.

4. Is it safe to continue driving my Chrysler with the U121E code related to lost communication with the steering wheel cruise control switch?

- It is generally recommended to address the issue promptly to ensure safe operation of the vehicle. If the cruise control system is affected, it may lead to inconvenience and potential safety concerns while driving.

5. What are some potential repair tips for resolving the U121E code in a Chrysler associated with lost communication with the cruise control switch?

- Repair tips may include checking and repairing any damaged wiring or connectors, replacing the faulty cruise control switch, inspecting and, if necessary, replacing the clock spring, and performing any required reprogramming of control modules.

6. Can I reset the U121E code in my Chrysler related to lost communication with the steering wheel cruise control switch by disconnecting the battery?

- While disconnecting the battery may clear the code temporarily, it is important to address the underlying issue causing the communication problem. Resetting the code without proper diagnosis and repair may result in the problem recurring.

7. How much does it typically cost to repair the U121E code in a Chrysler indicating lost communication with the steering wheel cruise control switch?

- The cost of repair can vary depending on the specific cause of the issue and the required parts and labor. It is recommended to obtain a diagnosis from a qualified technician to determine the exact cost.

8. Can a DIY enthusiast with automotive experience fix the U121E code related to lost communication with the steering wheel cruise control switch in a Chrysler?

- While some basic diagnostic and repair tasks may be possible for DIY enthusiasts, addressing communication issues involving steering wheel components may require specialized tools and expertise. It is advisable to consult a professional technician for complex repairs.

9. Are there any recalls or technical service bulletins related to the U121E code in Chrysler vehicles concerning lost communication with the steering wheel cruise control switch?

- It is recommended to check with Chrysler or authorized service centers for any relevant recalls or technical service bulletins related to the U121E code to see if there are known issues or solutions for this specific problem.

10. How can I prevent future occurrences of the U121E code in my Chrysler due to lost communication with the steering wheel cruise control switch?

- Regular maintenance checks, prompt resolution of any warning lights or codes related to steering wheel controls, and careful handling of the cruise control switch can help prevent future instances of the U121E code and associated communication issues.