I have one of the little blue tooth OBDII readers & Torque on my android phone . Paid $ 5 - 10 , freight paid from China .

Several places on Ebay have them .

Auto ELM327 V1 5 Interface Bluetooth OBD 2 OBDII Car Diagnostic Auto Scanner | eBay

Hear in the States , most of the local chain auto parts stores will read codes for free .

God bless
Wyr