CarDashPro - Diagnostic Lookup

Common Dashboard Warning Lights

Identify the meaning behind the most critical lights on your dashboard and know the severity of the issue.

Indicator	Description / Severity	Immediate Action
🔴 Oil Pressure Warning	CRITICAL! Indicates extremely low oil pressure. Pull over immediately and shut off the engine.	Check oil level. Do not drive until fixed. Tow vehicle to service center.
⚠️ Check Engine Light (CEL)	Warning. Signals a problem with the emissions system. Severity varies from minor to major.	Get an OBD-II scan to retrieve the Diagnostic Trouble Code (DTC) and use the search bar above.
⚡ Battery / Charging System	Warning. The car is running on battery power alone; the alternator is not charging.	Turn off all unnecessary electrical loads (AC, radio). Drive directly to a mechanic if possible.

💡 PRO TIP: For precise solutions, use an OBD-II scanner to get the exact code (like P0418) and enter it into the search tool above.

Example Diagnostic Trouble Codes (DTC)

P-Codes: Use the search bar for your specific code from Firestore

P0301

Cylinder 1 Misfire Detected

**Use the search** to get real-time info.
**Firestore Data:** Will provide exact solutions.
**Try searching for** P0418 or P0300.

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P0420

Catalyst System Efficiency Below Threshold (Bank 1)

**Use the search** to get real-time info.
**Firestore Data:** Will provide exact solutions.
**Try searching for** P0418 or P0300.

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P0171

System Too Lean (Bank 1)

**Use the search** to get real-time info.
**Firestore Data:** Will provide exact solutions.
**Try searching for** P0418 or P0300.

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Frequently Asked Questions

What is a DTC and how do I get one?

DTC stands for Diagnostic Trouble Code. It's a five-digit code generated by your car's On-Board Diagnostics (OBD-II) system when a sensor detects an issue. You retrieve it by connecting an OBD-II scanner to the diagnostic port, usually located under the dash.

Is it safe to drive with the Check Engine Light on?

It depends on the code. A solid light is less critical than a **flashing** light. A flashing CEL indicates a severe engine misfire (like P0300) that can damage the catalytic converter, and you should stop driving immediately.

How does this tool connect to the database?

This tool uses the official Google Firebase SDK to securely connect directly to your Firestore database. This allows for real-time retrieval of the code descriptions and solutions.

Can I reset my car's error codes myself?

Yes, most OBD-II scanners can clear codes. However, if you clear a code without fixing the underlying problem, the Check Engine Light will return. Only clear codes if you've resolved the issue or if you're testing after a repair.