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17 best obd scanner under $20.00

We picked 17 obd scanner from AliExpress with real orders and good reviews. Prices go from $3.04 to $16.95, the average rating is 4.8 stars and the most popular one has 62.4k orders. Every product opens on AliExpress, where you pay with buyer protection.

Updated: 2026-11

1. 1-65%Car Obd2 Scanner Diagnostic Tool Code Reader Engine Fault Code Reader Scanner Can Diagnose All Obd I$8.30 $23.73★ 4.5 · 62.4k soldView on AliExpress →
2. 2-70%V519 Professional Obd2 Scanner - Usb-Powered Automotive Diagnostic Tool with Real-Time Dat$7.46 $24.94★ 4.9 · 38.3k soldView on AliExpress →
3. 3-58%Mini ELM327 V1.5/V2.1 Bluetooth OBD2 Scanner Code Reader Car Diagnostic Tools Check Engine$3.04 $7.29★ 4.9 · 10.4k soldView on AliExpress →
4. 4-58%ELM327 V2.1 OBD2 Scanner Bluetooth Car Diagnostic Tool For Android /IOS Code Reader Automo$3.68 $8.74★ 4.9 · 9.9k soldView on AliExpress →
5. 5-55%Car Diagnostic Tool CY3001 OBD2 Scanner Code Reader Car Voltage Tester Engine Fault Code S$10.40 $23.16★ 4.9 · 8.7k soldView on AliExpress →
6. 6-57%Mini ELM327 V2.1 OBD2 Scanner Code Reader Bluetooth Car Diagnostic Tool For Android /IOS Automotive$3.04 $7.14★ 4.5 · 7.2k soldView on AliExpress →
7. 7-57%Openport 2.0 ECU FLASH Chip Tuning Tool Full Chip OBD2 Scanner for Toyota Open Po$16.94 $39.53★ 4.9 · 5.3k soldView on AliExpress →
8. 8-53%K DCAN K+CAN FTDI Chip OBD2 Auto Car Diagnostic Tools OBD 2 Scanner Switch USB Interface C$16.95 $36.04★ 4.6 · 5.3k soldView on AliExpress →
9. 9-63%V519 RED Car Diagnostic Scanner Tool Automotive OBD2 Scanner for Engine Health Check with Color Scre$9.99 $26.88★ 4.6 · 4.3k soldView on AliExpress →
10. 10-57%KONNWEI MAXOBD Bluetooth OBD2 Scanner Auto Engine Code Reader Car Diagnostic Detector Supp$16.51 $38.76★ 4.9 · 4.3k soldView on AliExpress →
11. 11-31%2026 KONNWEI KW905 Professional Car ELM327 OBD2 Scanner Bluetooth 5.0 for Android/IOS Code$9.06 $13.06★ 4.6 · 4.2k soldView on AliExpress →
12. 12-59%KONNWEI KW901 ELM327 V1.5 Bluetooth 5.0 for Android/IOS OBDII OBD2 Scanner ELM 327 V1 5 Au$11.89 $29.30★ 4.9 · 4.1k soldView on AliExpress →
13. 13-35%KONNWEI KW901 ELM327 V1.5 Bluetooth5.0 Car Auto OBD2 Scanner Android/IOS Car Diag$7.54 $11.54★ 4.6 · 3.7k soldView on AliExpress →
14. 14-56%OBD2 Scanner ELM327 Car Diagnostic Detector Code Reader Tool V1.5 WIFI Bluetooth OBD 2 for$4.10 $9.25★ 4.9 · 3.5k soldView on AliExpress →
15. 15-43%OBD2 Scanner Adapter BT, Wireless Diagnostic Code Reader OBD II Scan Tool Reset & Clear Check Car Engine Light$4.34 $7.63★ 4.5 · 2.5k soldView on AliExpress →
16. 16-56%ELM327 Bluetooth 5.1 V2.1 Auto OBD2 Scanner Car Diagnostic Tool Code Reader Tool Super MIN$3.89 $8.88★ 4.9 · 2.2k soldView on AliExpress →
17. 17-60%For Yamaha For Honda Car OBD2 Scanner 3-in-1 Universal Motorcycle Cable Code Reader Battery Performa$8.51 $21.05★ 4.9 · 1.3k soldView on AliExpress →

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