U11D9
Lost Engine Off Time Message
U11D9 is an OBD-II diagnostic trouble code meaning: Lost Engine Off Time Message. Common causes: broken or damaged wires of the can lor network, problems with the engine control module (ecm). Estimated repair cost: ~$278.
Symptoms
- Check Engine light comes on
- Problems starting the engine
- Unstable operation of systems that depend on engine shutdown time
- Errors saved in other modules
Causes
- Broken or damaged wires of the CAN lor network
- Problems with the engine control module (ECM)
- Battery management module malfunction
- Problems with power supply to one of the modules
- Software error in one of the modules
How to Fix
- Check the integrity of the CAN lor network
- Check power supply and grounding of modules
- Read error codes from all available modules
- Update module software
- If necessary, replace the faulty module
Related codes
FAQ
What does the U11D9 code mean?
U11D9 is an OBD-II diagnostic trouble code that indicates: Lost Engine Off Time Message
What causes a U11D9 error code?
The most common causes of U11D9 include: Broken or damaged wires of the CAN lor network; Problems with the engine control module (ECM); Battery management module malfunction; Problems with power supply to one of the modules.
How do I fix a U11D9 diagnostic trouble code?
To fix U11D9: Check the integrity of the CAN lor network. Check power supply and grounding of modules. Read error codes from all available modules. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U11D9?
Yes, but get it checked soon
How much does it cost to fix U11D9?
The estimated repair cost for U11D9 is ~$278. Actual cost depends on your vehicle, location, and labor rates.
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