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Tools & Garage

Scanners, multimeters, jacks and stands, OBD2 codes and garage safety for doing your own diagnosis the right way.

How to Test a Car Battery With a Multimeter

Tools & Garage How to Test a Car Battery With a Multimeter Test a car battery with a multimeter: remove surface charge, read resting voltage, watch voltage while cranking, check charging voltage, then get a load test. Read the checklist →

How to Read Check Engine Codes With a Cheap OBD2 Scanner

Tools & Garage How to Read Check Engine Codes With a Cheap OBD2 Scanner Plug a cheap OBD2 scanner into the port under the dash, read and record stored and pending codes plus freeze frame data, then diagnose before clearing codes. Read the checklist →