OBD-II Hardware Integration
Connect any OBD-II telematics device to OxMaint's AI-powered CMMS for real-time vehicle diagnostics, automatic DTC monitoring, and predictive maintenance. Transform raw vehicle data into actionable insights—reduce breakdowns by 40% and extend fleet lifespan.
Vehicle Diagnostics
Real-time OBD-II data & AI analysis98%
Fleet Health47
Connected3
DTCs ActiveAI
PredictingSeamless Integration
How OBD-II Works with OxMaint AI
OBD-II (On-Board Diagnostics) is a standardised system that monitors your vehicle's engine, emissions, and key components. OxMaint connects to this data stream through telematics devices, transforming raw diagnostic codes into AI-powered predictive insights.
OBD-II Device
Plugs into portData Capture
150+ parametersCloud Sync
4G LTE wirelessAI Analysis
Predictive insightsAuto Actions
Work ordersPlug-and-Play Installation
OBD-II devices plug directly into the standardised 16-pin diagnostic port found in all vehicles manufactured after 1996. No wiring required—install in seconds.
Rich Vehicle Data
Access 150+ parameters including engine RPM, coolant temperature, fuel level, vehicle speed, DTCs, and emission data—all streamed in real-time.
AI-Powered Predictions
OxMaint AI analyses patterns across your fleet to predict failures before they happen—reducing breakdowns by up to 40%.
Diagnostic Intelligence
Real-Time DTC Monitoring
Diagnostic Trouble Codes (DTCs) are your vehicle's way of communicating problems. OxMaint captures every DTC the moment it's triggered, decodes it instantly, assesses severity, and routes it to the right technician—before the driver even notices something's wrong.
Instant DTC Alerts
Get notified the moment any fault code is triggered.
Code Translation
5,000+ DTCs decoded into plain language.
Severity Classification
Critical vs non-critical code prioritisation.
Pending & Confirmed
Track intermittent vs persistent issues.
Freeze Frame Data
Capture conditions when fault occurred.
Auto Work Orders
Critical DTCs trigger maintenance requests.
DTC Monitor Dashboard
ACTIVE DIAGNOSTIC TROUBLE CODES
System Too Lean (Bank 1)
Possible vacuum leak or faulty MAF sensor. Work order #WO-GB-4521 created.Catalyst System Efficiency Below Threshold
Catalytic converter degradation detected. Schedule service.Random/Multiple Cylinder Misfire Detected
Intermittent misfire. Monitoring for confirmation.DTC CODE CATEGORIES
Artificial Intelligence
AI-Powered Predictive Maintenance
OxMaint AI analyses billions of data points from OBD-II sensors to detect patterns that predict failures before they happen. Stop reacting to breakdowns—start preventing them with machine learning that gets smarter with every mile your fleet drives.
Pattern Recognition
AI learns normal vs abnormal behaviour.
Failure Prediction
Predict battery, brake, engine issues.
Remaining Life Estimate
Know when components will fail.
Smart Scheduling
Optimal maintenance windows.
20-Min Diagnosis Savings
Technicians know the issue in advance.
Continuous Learning
AI improves with every repair outcome.
AI Predictive Insights
Lorry #FL-3291 shows declining voltage patterns consistent with battery degradation.
Van #VN-1847 MAF readings suggest restricted airflow from clogged filter.
Saloon #SD-0934 approaching optimal oil change interval based on driving patterns.
Complete Data Access
150+ Vehicle Parameters
OBD-II provides access to over 150 standardised Parameter IDs (PIDs) that reveal everything happening inside your vehicle. From engine performance to emissions data, OxMaint captures it all and turns raw numbers into maintenance intelligence.
Engine Performance
RPM, load, timing, throttle position.
Temperature Data
Coolant, oil, intake air, catalyst temps.
Fuel System
Fuel level, pressure, trim, consumption.
Emissions Sensors
O2 sensors, EGR, catalyst efficiency.
Vehicle Speed & Distance
Speed, odometer, trip data.
Battery & Electrical
Voltage, charging system status.
Live OBD-II Parameters
2,450
89°C
32%
93 km/h
45%
68%
AVAILABLE PARAMETER CATEGORIES
Device Compatibility
Works with Any OBD-II Device
OxMaint integrates with all major OBD-II telematics providers and devices. Whether you're using plug-and-play GPS trackers, Bluetooth dongles, or enterprise-grade hardwired systems—we connect them all to one unified platform.
Plug-and-Play Devices
Install in seconds, no wiring required.
4G LTE Connectivity
Real-time data streaming anywhere.
Bluetooth OBD Adapters
ELM327/STN1110 compatible.
J1939 Heavy-Duty
Commercial lorries & equipment.
Compatible OBD-II Devices
Samsara
EnterpriseGeotab
Fleet ProTrakm8
UK FleetTeltonika
FMx SeriesQuartix
UK TelematicsELM327
BluetoothUniversal API Integration
Don't see your device? OxMaint's open API connects with any OBD-II telematics system that provides data access.
Complete Visibility
Fleet Health Dashboard
See the health status of every vehicle in your fleet at a glance. OxMaint aggregates all OBD-II data into a single dashboard that shows vehicle health scores, active issues, upcoming maintenance, and AI predictions—so you can manage by exception.
Vehicle Health Scores
0-100 score based on all parameters.
Real-Time Status
Running, idle, off, or in maintenance.
Issue Prioritisation
Critical issues surfaced first.
Trend Analysis
Historical health data over time.
Fleet Health Overview
41
Healthy4
Warning2
Critical87.4%
Closed-Loop Automation
From DTC Alert to Repair Completion
OxMaint creates a seamless closed loop between OBD-II diagnostics and maintenance execution. When your vehicle detects a problem, our system automatically initiates the repair workflow.
DTC Triggered
Vehicle reports issueAI Analyses
Severity assessedWork Order
Auto-createdRepair Done
Tech completes fixDTC Cleared
Verified fixed20-Min Faster Diagnosis
Technicians see the issue before the vehicle arrives, eliminating diagnostic guesswork.
Complete Traceability
Every DTC linked to its repair, parts used, and technician—full audit trail.
AI Learns & Improves
Every repair outcome feeds back into predictions, making them more accurate.
Proven Results
Proven Fleet Results
40%
Fewer Breakdowns
AI predicts failures early.
35%
Lower Repair Costs
Preventive vs reactive.
20
Min Faster Diagnosis
Technicians know in advance.
"OBD-II integration with OxMaint transformed our maintenance. We catch problems before drivers even know something's wrong."
Fleet Manager
Regional Logistics · Manchester
"AI predictions saved us from 3 roadside breakdowns last month alone. The system actually works."
Operations Director
Council Fleet · Birmingham
"Technicians love seeing the DTC history before the lorry even arrives. Diagnosis time dropped dramatically."
Maintenance Director
Heavy Haulage · Leeds
"Plug-and-play installation with existing Trakm8 devices. Zero disruption, immediate value."
Plant Manager
Construction · Aberdeen
FAQ
Frequently Asked Questions
Everything you need to know about OBD-II hardware integration with OxMaint AI software.
OBD-II (On-Board Diagnostics II) is a standardised vehicle self-diagnostic system mandated in all vehicles manufactured after 2001 in the UK. It provides access to the vehicle's Engine Control Unit (ECU) through a 16-pin diagnostic port, typically located under the dashboard. OxMaint connects to this data through telematics devices that plug into the OBD-II port. These devices capture 150+ vehicle parameters and Diagnostic Trouble Codes (DTCs), then transmit them wirelessly to OxMaint's cloud platform where AI analyses the data to predict failures, trigger maintenance alerts, and automatically create work orders.
OxMaint integrates with virtually all OBD-II telematics devices and providers including Trakm8, Quartix, Samsara, Geotab, Teltonika, and many others. We also support Bluetooth OBD adapters based on ELM327 and STN1110 chipsets. For heavy-duty commercial vehicles, we support J1939 protocol devices. If your telematics provider offers API access to vehicle data, OxMaint can likely integrate with it. Our open API architecture means you're never locked into a single hardware vendor.
DTCs are standardised 5-character codes (like P0171, P0420, P0300) that vehicles generate when their onboard computer detects a malfunction. The first letter indicates the system (P=Powertrain, B=Body, C=Chassis, U=Network), and the remaining digits pinpoint the specific issue. There are over 5,000 possible DTCs. OxMaint automatically decodes every DTC into plain language, classifies it as Critical, Warning, or Pending, and can trigger automatic work orders for critical codes. We also capture "freeze frame" data—the exact conditions when the fault occurred—to help technicians diagnose issues faster.
OxMaint's AI analyses patterns in OBD-II data across your entire fleet to detect anomalies that precede failures. For example, subtle changes in voltage patterns can predict battery failure 5-7 days before it happens. Irregular fuel trim readings can indicate an impending sensor failure. The AI learns what "normal" looks like for each vehicle and flags deviations. It also incorporates maintenance history, age, mileage, and operating conditions to estimate remaining component life. This allows you to schedule repairs during planned maintenance windows rather than experiencing roadside breakdowns.
Yes. Heavy-duty vehicles (HGVs over 3.5 tonnes) use the J1939 protocol, which is supported through our integration with devices like Teltonika's FMx003 series and other J1939-compatible telematics. These devices access FMS (Fleet Management System) data specific to commercial lorries and buses, including additional parameters like axle weights, transmission data, and specific heavy-duty DTCs called SPNs (Suspect Parameter Numbers) with FMIs (Failure Mode Identifiers). OxMaint decodes all J1939 fault codes just like standard OBD-II codes.
You can start receiving real-time data within minutes of connecting your OBD-II devices. DTC monitoring and automatic alerts work immediately. Predictive maintenance features improve over time as the AI learns your fleet's patterns—most customers see meaningful predictions within 2-4 weeks. Initial ROI typically comes from faster diagnosis times (technicians see the issue before the vehicle arrives) and catching critical issues that would have caused roadside breakdowns. Fleets commonly report 40% fewer breakdowns and 20 minutes saved per repair within the first 90 days.
Connect Your Fleet to AI-Powered Maintenance
Transform OBD-II data into predictive intelligence. OxMaint turns raw vehicle diagnostics into actionable insights that prevent breakdowns and extend fleet lifespan.
Join 1000+ UK organisations already optimising fleet maintenance with OxMaint. UK GDPR compliant with enterprise security.
UK GDPR Compliant · Enterprise Security · 30-min demo
98%
Health47
ConnectedLive Data
Results