U11C3 on 2020-2025 Mercedes-Benz GLE (GLE 350, GLE 450 4MATIC, GLE 450d, GLE 580, AMG GLE 53) — ESM Lost Communication With TCM On DPT CAN
1 vehicles · 1 makes · $800-$4,500 repair
Most Reported On
U11C3 is an OBD-II diagnostic trouble code meaning “ESM Lost Communication With TCM On DPT CAN.” U11C3 is a Chrysler/Dodge/Jeep/RAM (Stellantis) manufacturer-specific network code indicating the Electronic Shift Module (ESM) has lost communication with the Transmission Control Module (TCM) over the DPT (Dedicated Powertrain) CAN bus. It sets when the ESM cannot exchange messages with the TCM for more than roughly 300 ms. Because the shifter and transmission can no longer reliably communicate, it can cause shifting problems, no-start or no-shift conditions, and limp/default behavior. This code is most commonly reported on 2020-2025 Mercedes-Benz GLE (GLE 350, GLE 450 4MATIC, GLE 450d, GLE 580, AMG GLE 53), with repair costs ranging from $800 to $4,500.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose U11C3, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
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FAQ
What does U11C3 mean?
U11C3 stands for "ESM Lost Communication With TCM On DPT CAN." U11C3 is a Chrysler/Dodge/Jeep/RAM (Stellantis) manufacturer-specific network code indicating the Electronic Shift Module (ESM) has lost communication with the Transmission Control Module (TCM) over the DPT (Dedicated Powertrain) CAN bus. It sets when the ESM cannot exchange messages with the TCM for more than roughly 300 ms. Because the shifter and transmission can no longer reliably communicate, it can cause shifting problems, no-start or no-shift conditions, and limp/default behavior.
What are the most common causes of U11C3?
The most common causes of U11C3 are: Faulty or corroded wiring/connectors between the ESM and TCM on the CAN DPT bus, Open, short, or high-resistance in the CAN bus circuit (CAN-high/CAN-low) or loss of bus terminating resistance, Failed or internally faulty Transmission Control Module (TCM), Failed or faulty Electronic Shift Module (ESM), Poor power or ground supply to the TCM or ESM, Damaged connector pins (bent, pushed-out, spread, or corroded terminals). The specific cause varies by vehicle.
How much does it cost to fix U11C3?
Repair costs for U11C3 range from $800 to $4,500, depending on the vehicle and root cause.
Which vehicles are affected by U11C3?
Au7o has documented U11C3 across 1 vehicle models from 1 manufacturers: Mercedes-Benz.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.