That $140 scan tool paid for itself on the first job in Detroit

Bought a cheap bidirectional scanner to read ABS codes on a 2012 Silverado, and it caught a bad wheel speed sensor that a $4,000 dealership diag missed, so what's the cheapest tool you've used that actually saved your ass?

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jana_scott19d ago

Bought a $8 OBD2 dongle that somehow reads more codes than my truck's dashboard.