AutoCodes – Chrysler – U11D9 Chrysler

U11D9 Chrysler Code - Lost Engine Off Time Message

Quick Answer

This diagnostic checks the availability of the engine off time signal which is sent by the Powertrain Control Module (PCM) via a Controller Area Network (CAN) message. Common causes include Faulty Powertrain Control Module (PCM), Faulty Transmission Control Module (TCM). 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: U11D9 Chrysler indicates Lost Engine Off Time Message.
Common causes: Common causes include Faulty Powertrain Control Module (PCM), Faulty Transmission Control Module (TCM).
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 780

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 03, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U11D9 Chrysler Description

This diagnostic checks the availability of the engine off time signal which is sent by the Powertrain Control Module (PCM) via a Controller Area Network (CAN) message. The diagnostic checks the availability by checking the received value is not equal to the Signal Not Available (SNA) default value. When the signal is not available, the PCM sends a SNA default value to the Transmission Control Module (TCM). If the TCM reads this value then the Diagnostic Trouble Code (DTC) U11D9 is set.

OBDII Code U11D9 Chrysler - Lost Engine Off Time Message - AutoCodes.com — U11D9 Chrysler Code - Lost Engine Off Time Message

What does this mean?

What are the Possible Causes of the DTC U11D9 Chrysler?

Faulty Powertrain Control Module (PCM)
Faulty Transmission Control Module (TCM)

How to Fix the DTC U11D9 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 U11D9 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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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 U11D9 Chrysler Code

1. What does the OBDII code U11D9 mean on a Chrysler?

U11D9 indicates a communication issue where the Powertrain Control Module (PCM) has lost the Engine Off Time message from another module on the vehicleâ€™s network.

2. What are the common symptoms of the U11D9 code?

Symptoms may include a check engine light, issues with vehicle start/stop functionality, inaccurate system time tracking, or no noticeable symptoms at all.

3. What causes the U11D9 code to appear on a Chrysler?

Possible causes include faulty wiring or connectors, a malfunctioning PCM or Body Control Module (BCM), software issues, or a problem with the vehicleâ€™s communication network.

4. Can a loose connection trigger the U11D9 code on a Chrysler?

Yes, loose or damaged wiring and connectors in the communication network can disrupt signals and trigger the U11D9 code.

5. How do you diagnose the U11D9 code on a Chrysler vehicle?

A technician will inspect wiring and connectors, use a scan tool to check for related codes, and test the communication network between the PCM and BCM.

6. Can the U11D9 code cause drivability issues?

Typically, U11D9 does not cause drivability issues, but system functionalities like auto start/stop or time-dependent features may be affected.

7. How do you fix the U11D9 code on a Chrysler?

Repairs may include fixing damaged wiring, cleaning or reconnecting connectors, reprogramming or updating module software, or replacing a faulty module.

8. Is it safe to drive with the U11D9 code on a Chrysler?

Yes, it is generally safe to drive. However, it's best to address the issue promptly to ensure all systems function properly.

9. Can a software update resolve the U11D9 code?

Yes, if the code is related to a software glitch or outdated module programming, a software update can resolve the issue.

10. What tools are needed to troubleshoot the U11D9 code on a Chrysler?

Youâ€™ll need an OBDII scan tool capable of reading Chrysler-specific codes, a multimeter for testing wiring, and potentially a module reprogramming tool.