U0155: Lost Communication with Instrument Cluster
14 vehicles · 10 makes · $100-$3,500 repair
Most Reported On
U0155 is an OBD-II diagnostic trouble code meaning “Lost Communication with Instrument Cluster.” This is a network communication code meaning a control module (usually the engine or body computer) has lost communication with the instrument cluster over the vehicle's data bus. Modern vehicles share information between modules over a network (such as CAN), and the cluster both displays data and relays messages. When messages from the cluster stop arriving, this code sets. You may see warning lights, dead or erratic gauges, missing displays, or other modules acting up. It usually points to wiring, power/ground, or the cluster itself rather than the engine. This code is most commonly reported on 2000-2008 Jaguar S-TYPE, 2019-2025 Jaguar I-PACE, and 2004-2012 Jaguar XJ, plus 11 other vehicles, with repair costs ranging from $100 to $3,500.
Common Causes
Typical Repair Cost
Based on 15 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose U0155, 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 (14)
Instrument Cluster / Speedometer Erratic Readings and Gauge Dropout
Alternator Premature Failure and Voltage Regulator Issues
SYNC 3 Infotainment Screen Freezing and Black Screen
SYNC 4A Infotainment Freezing and Spontaneous Rebooting
FAQ
What does U0155 mean?
U0155 stands for "Lost Communication with Instrument Cluster." This is a network communication code meaning a control module (usually the engine or body computer) has lost communication with the instrument cluster over the vehicle's data bus. Modern vehicles share information between modules over a network (such as CAN), and the cluster both displays data and relays messages. When messages from the cluster stop arriving, this code sets. You may see warning lights, dead or erratic gauges, missing displays, or other modules acting up. It usually points to wiring, power/ground, or the cluster itself rather than the engine.
What are the most common causes of U0155?
The most common causes of U0155 are: Faulty instrument cluster, Loss of power or ground to the cluster, Damaged or corroded CAN bus wiring, Loose or corroded connectors at the cluster, Blown fuse feeding the cluster, Short or open on the communication bus, A different failed module dragging down the bus. The specific cause varies by vehicle.
How much does it cost to fix U0155?
Repair costs for U0155 range from $100 to $3,500, depending on the vehicle and root cause.
Which vehicles are affected by U0155?
Au7o has documented U0155 across 14 vehicle models from 10 manufacturers: Audi, Cadillac, Chevrolet, Chrysler, Ford, GMC, Jaguar, Kia, Land Rover, Lexus.
Sources (10)
- videoYouTube - Diagnosing and Replacing a Ford Transit Alternator (Known Channel)
- ForumReddit r/Ford - SYNC 3 Freezing and Black Screen Issues on Ford Maverick
- videoYouTube - Instrument Cluster Repair on GMC Sierra 3500HD by EricTheCarGuy
- ForumOwner forum discussions on Kia electrical parasitic draw and battery drain diagnosis
- NHTSANHTSA complaints for 2021 Cadillac Escalade ESV electrical/display failures
- NHTSANHTSA Vehicle Page for 2017 Chevrolet Bolt EV - includes complaints about infotainment screen issues
- videoYouTube Repair Video on Chevrolet Bolt EV Infotainment Screen Flickering by a Known Channel
- ForumReddit r/MustangMachE Discussion on SYNC 4A Freezing and Rebooting
- ForumCrossfireForum Thread Discussing SAM Module Water Intrusion and Electrical Failures
- videoYouTube Repair Video on Diagnosing and Fixing SAM Module Water Damage in Chrysler Crossfire
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.