U1341: Communication Fault with Engine Module (Manufacturer Specific)
U1341 is an OBD-II diagnostic trouble code meaning “Communication Fault with Engine Module (Manufacturer Specific).” Manufacturer-specific communication fault between a body/chassis module and the engine control module. According to Au7o's database, this code appears across 1 vehicle models from 1 manufacturers. Full vehicle-specific causes and solutions at au7o.io.
Common Causes
Diagnostic Tools
To diagnose U1341, 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
As an Amazon Associate, we earn from qualifying purchases. Prices are approximate and may vary.
Vehicles Affected by U1341
Click any vehicle to see the full issue details, symptoms, and repair guide.
Related Codes
Frequently Asked Questions
What does U1341 mean?
U1341 stands for "Communication Fault with Engine Module (Manufacturer Specific)." Manufacturer-specific communication fault between a body/chassis module and the engine control module.
What are the most common causes of U1341?
The most common causes of U1341 are: ECM communication error, CAN bus wiring fault, Intermittent connection, Module software issue, Ground fault. The specific cause varies by vehicle — Au7o documents vehicle-specific causes for 1 models.
How much does it cost to fix U1341?
Repair costs vary widely depending on the root cause and vehicle. Check the vehicle-specific issues below for estimated costs.
Which vehicles are affected by U1341?
Au7o has documented U1341 across 1 vehicle models from 1 manufacturers: Hyundai. See the full list below for vehicle-specific causes and repair costs.
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