DTC Lookup API

DTC Lookup explains OBD-II diagnostic trouble codes such as P0301 or U0100. It returns the code's system and standard title, which warning light it turns on, and on paid plans the full description, likely causes ranked by likelihood, symptoms, repair difficulty, estimated cost and labor hours, and related codes. Carmaker-specific codes are covered for 32 makes.

The DTC Lookup API provides a simple, reliable way to integrate dtc lookup functionality into your applications. Built for developers who need production-ready dtc lookup capabilities without the complexity of building from scratch.

View API Details →

Method Platform

Available on: JitPack

Quick Start

Using JavaScript

async function callDTCLookupAPI() {
    try {
        const params = new URLSearchParams({
            code: 'P0301',
            make: 'Ford',
            lang: 'en'
        });

        const response = await fetch(`https://api.apiverve.com/v1/dtclookup?${params}`, {
            method: 'GET',
            headers: {
                'x-api-key': 'YOUR_API_KEY_HERE'
            }
        });

        const data = await response.json();
        console.log(data);
    } catch (error) {
        console.error('Error:', error);
    }
}

callDTCLookupAPI();

Using cURL

curl -X GET "https://api.apiverve.com/v1/dtclookup?code=P0301&make=Ford&lang=en" \
  -H "x-api-key: YOUR_API_KEY_HERE"

Get your API key: https://apiverve.com

📁 For more examples, see the examples folder

Installation

Choose your preferred programming language:

📦 NPM (JavaScript/Node.js)

npm install @apiverve/dtclookup

View NPM Package → | Package Code →

🔷 NuGet (.NET/C#)

dotnet add package APIVerve.API.DTCLookup

View NuGet Package → | Package Code →

🐍 Python (PyPI)

pip install apiverve-dtclookup

View PyPI Package → | Package Code →

💎 Ruby (RubyGems)

gem install apiverve_dtclookup

View RubyGems Package → | Package Code →

🐘 PHP (Packagist)

composer require apiverve/dtclookup

View Packagist Package → | Package Code →

🎯 Dart (pub.dev)

dart pub add apiverve_dtclookup

View pub.dev Package → | Package Code →

🤖 Android (JitPack)

implementation 'com.github.apiverve:dtclookup-api:1.0.0'

Package Code →

🐹 Go

go get github.com/apiverve/dtclookup-api/go

Package Code →

Why Use This API?

Feature	Benefit
Multi-language SDKs	Native packages for JavaScript, Python, C#, Go, and Android
Simple Integration	Single API key authentication, consistent response format
Production Ready	99.9% uptime SLA, served from 24 global regions
Comprehensive Docs	Full examples, OpenAPI spec, and dedicated support

Documentation

🏠 API Home: DTC Lookup API
📚 API Reference: docs.apiverve.com/ref/dtclookup
📖 OpenAPI Spec: openapi.yaml
💡 Examples: examples/

What Can You Build?

The DTC Lookup API is commonly used for:

Web Applications - Add dtc lookup features to your frontend or backend
Mobile Apps - Native SDKs for Android development
Automation - Integrate with n8n, Zapier, or custom workflows
SaaS Products - Enhance your product with dtc lookup capabilities
Data Pipelines - Process and analyze data at scale

API Reference

Authentication

All requests require an API key in the header:

x-api-key: YOUR_API_KEY_HERE

Get your API key: https://apiverve.com

Response Format

Every APIVerve endpoint returns the same envelope — check status, then read data:

{
  "status": "ok",
  "error": null,
  "data": { ... }
}

Example Response

A real response from the DTC Lookup API:

{
  "status": "ok",
  "error": null,
  "data": {
    "code": "P0301",
    "found": true,
    "system": "Powertrain",
    "subsystem": "Ignition",
    "codeType": "generic",
    "title": "Cylinder 1 Misfire Detected",
    "description": "Misfires concentrated on cylinder 1. A cylinder-specific code points away from shared causes (fuel pressure, MAF) toward components dedicated to that cylinder — coil, spark plug, injector, compression.",
    "warningLight": "Check Engine Light",
    "affectedComponents": [
      "ignition_coil",
      "spark_plug",
      "fuel_injector"
    ],
    "causes": [
      {
        "cause": "Ignition coil for cylinder 1 failed",
        "likelihood": "high"
      },
      {
        "cause": "Spark plug for cylinder 1 worn or fouled",
        "likelihood": "high"
      },
      {
        "cause": "Cylinder 1 injector clogged",
        "likelihood": "medium"
      },
      {
        "cause": "Low compression on cylinder 1",
        "likelihood": "low"
      }
    ],
    "symptoms": [
      "Check engine light on or flashing",
      "Rough idle and uneven running",
      "Power loss, hesitation under acceleration",
      "Increased fuel consumption",
      "Possible smell of unburned fuel from exhaust"
    ],
    "repairDifficulty": "easy",
    "diyPossible": true,
    "estimatedRepairCost": {
      "min": 40,
      "max": 800,
      "currency": "EUR"
    },
    "estimatedLaborHours": {
      "min": 0.3,
      "max": 4
    },
    "emissionsRelated": true,
    "limpModePossible": null,
    "relatedCodes": [
      "P0302",
      "P0303",
      "P0304",
      "P0305",
      "P0306",
      "P0307",
      "P0308",
      "P0309",
      "P0310",
      "P0311",
      "P0312"
    ],
    "make": null,
    "manufacturer": null,
    "availableMakes": null,
    "language": "en"
  }
}

Support & Community

🏠 API Home: DTC Lookup API
💬 Support: https://apiverve.com/contact
🐛 Issues: GitHub Issues
📖 Documentation: https://docs.apiverve.com
🌐 Website: https://apiverve.com

Contributing

We welcome contributions! Please see CONTRIBUTING.md for guidelines.

Security

For security concerns, please review our Security Policy.

License

This project is licensed under the MIT License - see the LICENSE file for details.

Acknowledgments

Built with ❤️ by APIVerve

apiverve_dtclookup

Runtime