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OBD2 Quick Reference Cheat Sheet
The 100 most common codes on one compact printable PDF. Severity rating, safe-to-drive status, and the #1 fix for each code — right in your pocket when you need it most.
$4.99
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OBD2 Decoded: The 100 Most Common Codes & the Questions Mechanics Fear
Includes decision trees, false-positive traps, and the exact questions to ask before authorizing any repair. The 100 most common codes — all covered. Walk into any shop fully prepared.
$14.99
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