U11C3 Code - ESM Lost Communication With TCM On DPT CAN
Quick Answer
The Electronic Shift Module (ESM) communicates with other controllers on the Controller Area Network (CAN) Dedicated Powertrain (DPT) bus. Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module (TCM) harness is open or shorted, Transmission Control Module (TCM) 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
- U11C3 indicates ESM Lost Communication With TCM On DPT CAN.
- Common causes
- Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module (TCM) harness is open or shorted, Transmission Control Module (TCM) 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.
Code U11C3 Description
What are the Possible Causes of the DTC U11C3?
- Faulty Transmission Control Module (TCM)
- Transmission Control Module (TCM) harness is open or shorted
- Transmission Control Module (TCM) circuit poor electrical connection
- Faulty Electronic Shift Module (ESM)
How to Fix the DTC U11C3?
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 U11C3 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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Information for Specific Makes
- U11C3 Chrysler — ESM Lost Communication With TCM On DPT CAN
- U11C3 Dodge — ESM Lost Communication With TCM On DPT CAN
- U11C3 Jeep — ESM Lost Communication With TCM On DPT CAN
- U11C3 RAM — ESM Lost Communication With TCM On DPT CAN
Frequently Asked Questions about U11C3 Code
1. What are common symptoms of OBDII code U11C3 (ESM Lost Communication With TCM On DPT CAN)?
- Common symptoms include transmission shifting issues, lack of power, and illuminated warning lights on the dashboard.
2. What are the possible causes of OBDII code U11C3?
- The code U11C3 can be caused by a faulty Transmission Control Module (TCM), wiring issues, or a communication breakdown between the Electronic Shift Module (ESM) and TCM.
3. How can I diagnose the OBDII code U11C3?
- Diagnosing this code typically involves checking the communication lines between the ESM and TCM, testing the TCM for proper functioning, and inspecting the wiring harness for any damage.
4. Can a DIYer repair OBDII code U11C3 at home?
- Repairing this code may require advanced diagnostic tools and expertise, so it is recommended to seek assistance from a professional mechanic for proper diagnosis and repair.
5. Is it safe to continue driving with OBDII code U11C3 present?
- It is not recommended to continue driving with this code active, as it can lead to further damage to the transmission system and potentially compromise vehicle safety.
6. How much does it typically cost to repair OBDII code U11C3?
- The cost of repairing this code can vary depending on the underlying cause, but it may involve replacing components such as the TCM or repairing damaged wiring, potentially costing several hundred dollars.
7. Can a weak car battery cause OBDII code U11C3 to appear?
- Yes, a weak car battery can sometimes cause communication issues between modules in the vehicle, leading to the appearance of code U11C3. Ensure your car battery is in good condition before diagnosing further.
8. Are there any preventive measures to avoid OBDII code U11C3 from recurring?
- Regular vehicle maintenance, including checking and cleaning electrical connections, can help prevent communication issues between modules that may trigger code U11C3.
9. How long does it typically take to repair OBDII code U11C3?
- The repair time for this code can vary based on the specific cause and complexity of the issue. It may take a few hours to a full day for a mechanic to diagnose and fix the problem.
10. Can resetting the OBDII system clear code U11C3 permanently?
- Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing code U11C3 is not addressed, the code is likely to reappear. It's crucial to diagnose and repair the root cause.
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