U11C3 Chrysler 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 Chrysler 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 Chrysler Description
What are the Possible Causes of the DTC U11C3 Chrysler?
- 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 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 U11C3 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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Frequently Asked Questions about U11C3 Chrysler Code
1. What does the OBDII code U11C3 mean on a Chrysler vehicle?
The U11C3 code indicates that the Electronic Shift Module (ESM) has lost communication with the Transmission Control Module (TCM) on the Drive Train CAN (DPT CAN) bus.
2. What are the common symptoms of the U11C3 code?
Symptoms may include a check engine light, transmission stuck in limp mode, difficulty shifting gears, or erratic transmission performance.
3. What causes the U11C3 code to appear on a Chrysler?
The code can be caused by faulty wiring or connectors in the CAN bus network, a malfunctioning ESM or TCM, or software-related communication issues.
4. Can a weak battery trigger the U11C3 code?
Yes, a weak or failing battery can cause voltage issues that may disrupt communication between the ESM and TCM, triggering the U11C3 code.
5. How do you diagnose the U11C3 code?
Diagnosis involves inspecting the CAN bus wiring and connectors for damage, checking the ESM and TCM for faults, and using a scan tool to verify communication on the DPT CAN network.
6. Can the U11C3 code cause transmission failure?
While the code itself does not cause physical transmission damage, it can lead to improper shifting or limp mode, which may affect drivability.
7. What are the repair options for the U11C3 code?
Repairs may include fixing or replacing damaged wiring or connectors, updating or reprogramming the ESM/TCM software, or replacing a faulty ESM or TCM.
8. Is it safe to drive with the U11C3 code present?
Driving with the U11C3 code is not recommended, as the vehicle may enter limp mode or experience shifting issues that could affect safety.
9. How much does it cost to fix the U11C3 code?
The repair cost varies depending on the issue but typically ranges from $100 for wiring repairs to over $1,000 if a module replacement is needed.
10. Can clearing the code with a scan tool fix the U11C3 issue?
Clearing the code may temporarily remove the check engine light, but the underlying issue must be resolved to prevent the code from returning.
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