# OBD-II DTC Code Decoder & Repair Cost Lookup (`dataengineered/obd2-dtc-code-repair-lookup`) Actor

Decode check-engine trouble codes (SAE + OEM codes for 32 makes) into ranked repair plans: likely fixes with DIY difficulty, parts-cost ranges, labor hours, and step-by-step instructions. Powered by MechanicDB.

- **URL**: https://apify.com/dataengineered/obd2-dtc-code-repair-lookup.md
- **Developed by:** [DataEngineered](https://apify.com/dataengineered) (community)
- **Categories:** AI, Automation, Developer tools
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $0.10 / 1,000 results

This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events.

Learn more: https://docs.apify.com/platform/actors/running/actors-in-store#pay-per-event

## What's an Apify Actor?

Actors are a software tools running on the Apify platform, for all kinds of web data extraction and automation use cases.
In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours,
and optionally produces a well-defined JSON output, datasets with results, or files in key-value store.
In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server.
Actors are written with capital "A".

## How to integrate an Actor?

If asked about integration, you help developers integrate Actors into their projects.
You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready.
The best way to integrate Actors is as follows.

In JavaScript/TypeScript projects, use official [JavaScript/TypeScript client](https://docs.apify.com/api/client/js.md):

```bash
npm install apify-client
```

In Python projects, use official [Python client library](https://docs.apify.com/api/client/python.md):

```bash
pip install apify-client
```

In shell scripts, use [Apify CLI](https://docs.apify.com/cli/docs.md):

````bash
# MacOS / Linux
curl -fsSL https://apify.com/install-cli.sh | bash
# Windows
irm https://apify.com/install-cli.ps1 | iex
```bash

In AI frameworks, you might use the [Apify MCP server](https://docs.apify.com/platform/integrations/mcp.md).

If your project is in a different language, use the [REST API](https://docs.apify.com/api/v2.md).

For usage examples, see the [API](#api) section below.

For more details, see Apify documentation as [Markdown index](https://docs.apify.com/llms.txt) and [Markdown full-text](https://docs.apify.com/llms-full.txt).


# README

## OBD-II DTC Code Decoder & Repair Cost Lookup 🔧

**Turn check-engine trouble codes into ranked repair plans.** Feed this Actor a list of OBD-II DTC codes — `P0420`, `P0171`, or manufacturer-specific codes like `Ford:P1000` — and get back what each code means, the **3–5 most likely fixes ranked by probability**, a **DIY difficulty rating**, **aftermarket parts-cost ranges (USD)**, **labor-hour estimates**, **step-by-step instructions**, and matching **replacement parts** with catalog search URLs.

Powered by **MechanicDB**: 15,886 verified codes (9,249 SAE-universal + 6,637 OEM across **32 makes**), 56,561 ranked repair procedures, 75,055 parts mappings — no scraping, no external calls, instant results.

### What this DTC decoder does

- 🚗 **Decodes any OBD-II code** — SAE-universal (P0xxx, P2xxx, B0/C0/U0…) and **manufacturer-specific** codes (P1xxx and friends) for Ford, Toyota, BMW, the GM marques, VW/Audi, Honda/Acura, Mercedes-Benz, and 20+ more.
- 🎯 **Make-aware, never guessing** — the same P1xxx number means different things on different brands. An OEM code without a make returns the **list of makes that define it**, not a guess.
- 🧰 **Ranked repair ladder** — rank 1 = the most common root cause first, so you check the $10 fix before the $1,500 one.
- 💰 **Cost intelligence** — parts-cost min/max (USD) and labor hours per fix (editorial estimates for US aftermarket parts and independent-shop labor).
- 🔩 **Parts included** — 1–3 aftermarket parts per fix with ready-made catalog search URLs.
- ⚡ **Offline & deterministic** — the dataset ships inside the Actor; a 100-code batch decodes in seconds.

### Output — one row per (code, ranked fix)

| Field | Description |
| :--- | :--- |
| `dtc_code`, `oem_make`, `scope` | The code, its make (empty for SAE-universal), `sae`/`oem` |
| `short_description` | What the code means |
| `detailed_technical_explanation` | How the ECM detects it and what typically causes it |
| `fault_family`, `system_category` | Diagnosis grouping + Powertrain/Chassis/Body/Network |
| `probability_rank`, `fix_title` | 1 = most likely root cause |
| `difficulty_level` | `Easy DIY` / `Moderate DIY` / `Professional Required` |
| `est_parts_cost_min_usd`, `est_parts_cost_max_usd`, `est_labor_hours` | Cost matrix |
| `step_by_step_instructions` | ` • `-separated repair steps |
| `parts`, `parts_names` | Aftermarket parts + catalog search URLs |
| `found`, `reason`, `makes_with_this_code` | Honest misses: invalid codes and make-ambiguous OEM codes explain themselves |
| `dataset_version`, `source` | Provenance |

Export as **CSV, JSON, Excel, or via API**.

### Input

```json
{
  "codes": ["P0420", "P0171", "P0300", "Ford:P1000", "Toyota:P1155"],
  "make": "",
  "onlyTopFix": false,
  "includeParts": true
}
````

Set `make` (e.g. `"Ford"`) to apply one vehicle make to every un-prefixed code, or prefix per code (`"BMW:P1083"`). `onlyTopFix` returns just the rank-1 repair per code.

### Use cases

- **OBD-II scanner apps & dongles** — code → explanation → ranked fixes without building a database.
- **Repair-estimate and shop software** — difficulty, parts-cost, and labor-hour matrices per code.
- **AI mechanic co-pilots / RAG** — structured, provenance-tracked diagnostic context.
- **Fleet triage** — batch-decode fault lists and sort by cost or difficulty.

### FAQ

**Where does the data come from?** Code-to-definition mappings are compiled from an MIT-licensed SAE J2012-derived public compilation (attribution preserved); explanations, ranked fixes, difficulty tiers, and cost estimates are MechanicDB's original editorial content, built by a deterministic, test-gated pipeline with anti-template and no-fabricated-codes gates.

**Are the costs quotes?** No — they're editorial estimates for typical US aftermarket parts and independent-shop labor, meant for triage and ballparking.

**What about codes the dataset doesn't have?** You still get a row: `found: false` with the reason, and for make-ambiguous OEM codes, the list of makes that do define it.

**Can I get the whole thing as a ready-made dataset?** Yes — the full MechanicDB (CSV + Parquet + SQLite, commercial license, instant download) is available at **[mechanicdb-public.pages.dev](https://mechanicdb-public.pages.dev/)**, with a free 90-code sample on [GitHub](https://github.com/MechanicDB/MechanicDB-public) and [Kaggle](https://www.kaggle.com/datasets/ahtiticheamine/mechanicdb-automotive-obd2-repair-database).

⚠️ **Safety:** repair steps are educational reference material, not a substitute for the vehicle manufacturer's service manual. High-voltage (hybrid/EV) and SRS/airbag procedures must only be performed by qualified technicians.

***

*Keywords: OBD-II decoder, DTC lookup, check engine light, trouble code database, car diagnostic API, P0420 fix, repair cost estimate, automotive repair data, OEM diagnostic codes, mechanic API.*

# Actor input Schema

## `codes` (type: `array`):

OBD-II trouble codes, e.g. P0420. For manufacturer-specific codes, prefix the make with a colon (Ford:P1360) or set the default make below — the same P1xxx number means different things on different brands.

## `make` (type: `string`):

Applied to codes without a make prefix when they fall in a manufacturer-controlled range (P1xxx, C1/C2, B1/B2, U1/U2, P30-P33). E.g. Ford, Toyota, BMW. 32 makes supported.

## `onlyTopFix` (type: `boolean`):

Return just the rank-1 repair instead of the full 3-5 fix ladder.

## `includeParts` (type: `boolean`):

Attach aftermarket part names and catalog search URLs to each fix.

## Actor input object example

```json
{
  "codes": [
    "P0420",
    "P0171",
    "P0300",
    "Ford:P1000"
  ],
  "onlyTopFix": false,
  "includeParts": true
}
```

# API

You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup.

## JavaScript example

```javascript
import { ApifyClient } from 'apify-client';

// Initialize the ApifyClient with your Apify API token
// Replace the '<YOUR_API_TOKEN>' with your token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare Actor input
const input = {
    "codes": [
        "P0420",
        "P0171",
        "P0300",
        "Ford:P1000"
    ],
    "make": ""
};

// Run the Actor and wait for it to finish
const run = await client.actor("dataengineered/obd2-dtc-code-repair-lookup").call(input);

// Fetch and print Actor results from the run's dataset (if any)
console.log('Results from dataset');
console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
const { items } = await client.dataset(run.defaultDatasetId).listItems();
items.forEach((item) => {
    console.dir(item);
});

// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

```

## Python example

```python
from apify_client import ApifyClient

# Initialize the ApifyClient with your Apify API token
# Replace '<YOUR_API_TOKEN>' with your token.
client = ApifyClient("<YOUR_API_TOKEN>")

# Prepare the Actor input
run_input = {
    "codes": [
        "P0420",
        "P0171",
        "P0300",
        "Ford:P1000",
    ],
    "make": "",
}

# Run the Actor and wait for it to finish
run = client.actor("dataengineered/obd2-dtc-code-repair-lookup").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print("💾 Check your data here: https://console.apify.com/storage/datasets/" + run["defaultDatasetId"])
for item in client.dataset(run["defaultDatasetId"]).iterate_items():
    print(item)

# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

```

## CLI example

```bash
echo '{
  "codes": [
    "P0420",
    "P0171",
    "P0300",
    "Ford:P1000"
  ],
  "make": ""
}' |
apify call dataengineered/obd2-dtc-code-repair-lookup --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "command": "npx",
            "args": [
                "mcp-remote",
                "https://mcp.apify.com/?tools=dataengineered/obd2-dtc-code-repair-lookup",
                "--header",
                "Authorization: Bearer <YOUR_API_TOKEN>"
            ]
        }
    }
}

```

## OpenAPI specification

```json
{
    "openapi": "3.0.1",
    "info": {
        "title": "OBD-II DTC Code Decoder & Repair Cost Lookup",
        "description": "Decode check-engine trouble codes (SAE + OEM codes for 32 makes) into ranked repair plans: likely fixes with DIY difficulty, parts-cost ranges, labor hours, and step-by-step instructions. Powered by MechanicDB.",
        "version": "0.1",
        "x-build-id": "0jmGA0962dUWRGE9s"
    },
    "servers": [
        {
            "url": "https://api.apify.com/v2"
        }
    ],
    "paths": {
        "/acts/dataengineered~obd2-dtc-code-repair-lookup/run-sync-get-dataset-items": {
            "post": {
                "operationId": "run-sync-get-dataset-items-dataengineered-obd2-dtc-code-repair-lookup",
                "x-openai-isConsequential": false,
                "summary": "Executes an Actor, waits for its completion, and returns Actor's dataset items in response.",
                "tags": [
                    "Run Actor"
                ],
                "requestBody": {
                    "required": true,
                    "content": {
                        "application/json": {
                            "schema": {
                                "$ref": "#/components/schemas/inputSchema"
                            }
                        }
                    }
                },
                "parameters": [
                    {
                        "name": "token",
                        "in": "query",
                        "required": true,
                        "schema": {
                            "type": "string"
                        },
                        "description": "Enter your Apify token here"
                    }
                ],
                "responses": {
                    "200": {
                        "description": "OK"
                    }
                }
            }
        },
        "/acts/dataengineered~obd2-dtc-code-repair-lookup/runs": {
            "post": {
                "operationId": "runs-sync-dataengineered-obd2-dtc-code-repair-lookup",
                "x-openai-isConsequential": false,
                "summary": "Executes an Actor and returns information about the initiated run in response.",
                "tags": [
                    "Run Actor"
                ],
                "requestBody": {
                    "required": true,
                    "content": {
                        "application/json": {
                            "schema": {
                                "$ref": "#/components/schemas/inputSchema"
                            }
                        }
                    }
                },
                "parameters": [
                    {
                        "name": "token",
                        "in": "query",
                        "required": true,
                        "schema": {
                            "type": "string"
                        },
                        "description": "Enter your Apify token here"
                    }
                ],
                "responses": {
                    "200": {
                        "description": "OK",
                        "content": {
                            "application/json": {
                                "schema": {
                                    "$ref": "#/components/schemas/runsResponseSchema"
                                }
                            }
                        }
                    }
                }
            }
        },
        "/acts/dataengineered~obd2-dtc-code-repair-lookup/run-sync": {
            "post": {
                "operationId": "run-sync-dataengineered-obd2-dtc-code-repair-lookup",
                "x-openai-isConsequential": false,
                "summary": "Executes an Actor, waits for completion, and returns the OUTPUT from Key-value store in response.",
                "tags": [
                    "Run Actor"
                ],
                "requestBody": {
                    "required": true,
                    "content": {
                        "application/json": {
                            "schema": {
                                "$ref": "#/components/schemas/inputSchema"
                            }
                        }
                    }
                },
                "parameters": [
                    {
                        "name": "token",
                        "in": "query",
                        "required": true,
                        "schema": {
                            "type": "string"
                        },
                        "description": "Enter your Apify token here"
                    }
                ],
                "responses": {
                    "200": {
                        "description": "OK"
                    }
                }
            }
        }
    },
    "components": {
        "schemas": {
            "inputSchema": {
                "type": "object",
                "required": [
                    "codes"
                ],
                "properties": {
                    "codes": {
                        "title": "DTC codes to decode",
                        "type": "array",
                        "description": "OBD-II trouble codes, e.g. P0420. For manufacturer-specific codes, prefix the make with a colon (Ford:P1360) or set the default make below — the same P1xxx number means different things on different brands.",
                        "default": [
                            "P0420"
                        ],
                        "items": {
                            "type": "string"
                        }
                    },
                    "make": {
                        "title": "Default vehicle make (for OEM codes)",
                        "type": "string",
                        "description": "Applied to codes without a make prefix when they fall in a manufacturer-controlled range (P1xxx, C1/C2, B1/B2, U1/U2, P30-P33). E.g. Ford, Toyota, BMW. 32 makes supported."
                    },
                    "onlyTopFix": {
                        "title": "Only the most likely fix per code",
                        "type": "boolean",
                        "description": "Return just the rank-1 repair instead of the full 3-5 fix ladder.",
                        "default": false
                    },
                    "includeParts": {
                        "title": "Include replacement parts",
                        "type": "boolean",
                        "description": "Attach aftermarket part names and catalog search URLs to each fix.",
                        "default": true
                    }
                }
            },
            "runsResponseSchema": {
                "type": "object",
                "properties": {
                    "data": {
                        "type": "object",
                        "properties": {
                            "id": {
                                "type": "string"
                            },
                            "actId": {
                                "type": "string"
                            },
                            "userId": {
                                "type": "string"
                            },
                            "startedAt": {
                                "type": "string",
                                "format": "date-time",
                                "example": "2025-01-08T00:00:00.000Z"
                            },
                            "finishedAt": {
                                "type": "string",
                                "format": "date-time",
                                "example": "2025-01-08T00:00:00.000Z"
                            },
                            "status": {
                                "type": "string",
                                "example": "READY"
                            },
                            "meta": {
                                "type": "object",
                                "properties": {
                                    "origin": {
                                        "type": "string",
                                        "example": "API"
                                    },
                                    "userAgent": {
                                        "type": "string"
                                    }
                                }
                            },
                            "stats": {
                                "type": "object",
                                "properties": {
                                    "inputBodyLen": {
                                        "type": "integer",
                                        "example": 2000
                                    },
                                    "rebootCount": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "restartCount": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "resurrectCount": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "computeUnits": {
                                        "type": "integer",
                                        "example": 0
                                    }
                                }
                            },
                            "options": {
                                "type": "object",
                                "properties": {
                                    "build": {
                                        "type": "string",
                                        "example": "latest"
                                    },
                                    "timeoutSecs": {
                                        "type": "integer",
                                        "example": 300
                                    },
                                    "memoryMbytes": {
                                        "type": "integer",
                                        "example": 1024
                                    },
                                    "diskMbytes": {
                                        "type": "integer",
                                        "example": 2048
                                    }
                                }
                            },
                            "buildId": {
                                "type": "string"
                            },
                            "defaultKeyValueStoreId": {
                                "type": "string"
                            },
                            "defaultDatasetId": {
                                "type": "string"
                            },
                            "defaultRequestQueueId": {
                                "type": "string"
                            },
                            "buildNumber": {
                                "type": "string",
                                "example": "1.0.0"
                            },
                            "containerUrl": {
                                "type": "string"
                            },
                            "usage": {
                                "type": "object",
                                "properties": {
                                    "ACTOR_COMPUTE_UNITS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATASET_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATASET_WRITES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "KEY_VALUE_STORE_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "KEY_VALUE_STORE_WRITES": {
                                        "type": "integer",
                                        "example": 1
                                    },
                                    "KEY_VALUE_STORE_LISTS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "REQUEST_QUEUE_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "REQUEST_QUEUE_WRITES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATA_TRANSFER_INTERNAL_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATA_TRANSFER_EXTERNAL_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "PROXY_RESIDENTIAL_TRANSFER_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "PROXY_SERPS": {
                                        "type": "integer",
                                        "example": 0
                                    }
                                }
                            },
                            "usageTotalUsd": {
                                "type": "number",
                                "example": 0.00005
                            },
                            "usageUsd": {
                                "type": "object",
                                "properties": {
                                    "ACTOR_COMPUTE_UNITS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATASET_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATASET_WRITES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "KEY_VALUE_STORE_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "KEY_VALUE_STORE_WRITES": {
                                        "type": "number",
                                        "example": 0.00005
                                    },
                                    "KEY_VALUE_STORE_LISTS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "REQUEST_QUEUE_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "REQUEST_QUEUE_WRITES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATA_TRANSFER_INTERNAL_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATA_TRANSFER_EXTERNAL_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "PROXY_RESIDENTIAL_TRANSFER_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "PROXY_SERPS": {
                                        "type": "integer",
                                        "example": 0
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
}
```
