Is your check engine light on? Here’s a quick guide to troubleshoot using an OBD2 scanner: 1️⃣ Plug in the scanner under your steering wheel. 2️⃣ Power on your car and run the diagnostic test. 3️⃣ Note down the code and research online for solutions. 4️⃣ Safely unplug the scanner when done. For expert help, visit a AAA owned Car Care location or a AAA Approved Auto Repair facility! https://sm.aaa/xqclo7bp #CarCare #AutoRepair #AAARoadside | AAA The Auto Club Group

Getting a Code 12 on your GM’s OBD1 scanner? That usually means your ECM isn’t receiving the distributor signal, which affects spark timing and can lead to hard starts. Haynes Manuals give you the step-by-step help you need to trace the problem and get your vehicle back in shape. Don’t guess—get expert instructions at haynes.com. #HaynesManuals #GMFix #HaynesShowsYouHow | Haynes Manuals

GM OBD1 code 12? It means your engine's RPM signal isn’t detected during cranking. Common causes include a faulty crankshaft position sensor, defective wiring, or a malfunctioning ignition module. Haynes Manuals helps you diagnose and fix the problem step by step. Find your GM manual today at haynes.com. #HaynesManuals #HaynesShowsYouHow #GMRepair | Haynes Manuals