ANCEL BD310 Bluetooth OBD2 Scanner and Battery Voltage Tester

This is the little scanner you keep in the door pocket for the days the check-engine or transmission light comes on and you want an answer before you drive anywhere. The ANCEL BD310 plugs into the 16-pin OBD2 port on any 1996-or-newer car, light truck, or SUV and pulls the stored diagnostic trouble codes in seconds. You can read and clear them right on the handset without a phone, or pair it over Bluetooth to the free ANCEL app on an iPhone or Android for a bigger screen, plain-English code definitions, and a lookup that helps point you at likely causes before you spend money at a shop.

Because it reads the generic OBD2 powertrain range, it will pull the transmission-related P07xx codes - things like P0700, P0715, or a slipping/overheat flag the TCM has logged - along with the usual engine misfire, O2, and fuel-trim codes. That makes it a quick first check when a customer says the trans is acting up: clear the code, drive it, and see if it comes back. It also monitors battery voltage in real time and runs a simple cranking and charging check, so you can tell a weak battery from a charging fault, plus a trip and 0-60 performance readout through the app.

It is an OBD2 generic-code tool, not a factory bidirectional scanner - it does not do ABS, SRS airbag, or manufacturer-specific solenoid actuation and coding, so on a deep transmission rebuild you will still want a full-system unit. For fast code pulls, verifying a repair, and battery health, it earns its spot in the box. Ships from the USA.