What is OBD? What You Need to Know - AutoZone

Modern on-board diagnostic systems take a lot of the guesswork out of figuring out what's wrong with your vehicle. Learn how OBD works.

Never lose your seat or radio settings again! With the Schumacher OBDII Memory Saver Cable you can save your settings before removing your battery. Simply attach the cable between a portable power unit and an On-Board Data (OBDII) diagnostic port on your vehicle to maintain power to the on-board microprocessor-controlled devices when the battery is disconnected for service or replacement.

Schumacher SEC-12V-OBD Memory Saver Adapter Cable

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Scosche OBDII Splitter

P0420 & P0421 Trouble Codes - Diagnosis, Causes, Symptoms & How to Fix OBD-II Codes P0420 & P0421 - AutoZone

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The ThinkCheck M70 is our latest and easiest to use diagnostic tool. The Android-based navigation menu with color touchscreen makes finding the correct element fast and easy. The 7-system functionality ensures the tool can access the system you need. Graphing, recording and playback of diagnostic data makes troubleshooting easier.

THINKCAR - THINKCHECK M70 OBD-II Diagnostic Scan Tool

From the makers of the world’s top selling OBD2 tool line comes QUICKLINK™ -- Your Wireless Car Partner. It pairs with your favorite smart device for

Innova Quicklink OBDII Wireless Tool

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