Gadgets56🔎 All finds

Home › Finds › Fault

The 22 best-selling fault on AliExpress

We picked 22 fault from AliExpress with real orders and good reviews. Prices go from $1.59 to $196, the average rating is 4.8 stars and the most popular one has 30.4k orders. Every product opens on AliExpress, where you pay with buyer protection.

Updated: 2026-11

  1. 1Popular ELM327 WiFi OBD2 Diagnostic Scanner V1.5 Car Code Reader Check Engine Fault Detect-54%Popular ELM327 WiFi OBD2 Diagnostic Scanner V1.5 Car Code Reader Check Engine Fault Detect$3.56 $7.75★ 4.9 · 30.4k soldView on AliExpress →
  2. 2Car Diagnostic Tool CY3001 OBD2 Scanner Code Reader Car Voltage Tester Engine Fault Code S-55%Car Diagnostic Tool CY3001 OBD2 Scanner Code Reader Car Voltage Tester Engine Fault Code S$8.32 $18.53★ 4.9 · 8.7k soldView on AliExpress →
  3. 31-20Pcs Universal Car SRS Airbag Simulator Emulator Resistor Bypass Fault Finding Diagnost-58%1-20Pcs Universal Car SRS Airbag Simulator Emulator Resistor Bypass Fault Finding Diagnostic Tool Ai$1.93 $4.55★ 4.9 · 8.5k soldView on AliExpress →
  4. 4V510 Professional Obdii Diagnostic Scanner, Engine Fault Code Reader, Live Data Stream, I/-61%V510 Professional Obdii Diagnostic Scanner, Engine Fault Code Reader, Live Data Stream, I/$7.99 $20.34★ 4.9 · 6.3k soldView on AliExpress →
  5. 51-20Pcs Universal Car SRS Airbag Simulator Emulator Resistor Bypass Fault Finding Diagnost-59%1-20Pcs Universal Car SRS Airbag Simulator Emulator Resistor Bypass Fault Finding Diagnost$1.59 $3.92★ 4.7 · 5.4k soldView on AliExpress →
  6. 62026 KONNWEI KW330 Car OBD2 Fault Scanner Engine Battery Test Fault Code Clear Real-Time D2026 KONNWEI KW330 Car OBD2 Fault Scanner Engine Battery Test Fault Code Clear Real-Time D$26.37★ 4.7 · 3.8k soldView on AliExpress →
  7. 7Bluetooth ELM327 OBD2 Car Code Reader Scanner V1.5 Fault Detector Check Engine Automotive-67%Bluetooth ELM327 OBD2 Car Code Reader Scanner V1.5 Fault Detector Check Engine Automotive$2.43 $7.34★ 4.9 · 3.3k soldView on AliExpress →
  8. 8V318 Auto Diagnostic Tool Scanner Automobile Battery Tester OBD2 Automobile Clear Fault De-57%V318 Auto Diagnostic Tool Scanner Automobile Battery Tester OBD2 Automobile Clear Fault De$13.04 $30.62★ 4.9 · 2.9k soldView on AliExpress →
  9. 9V318 Auto Diagnostic Tool Scanner Automobile Battery Tester OBD2 Automobile Clear Fault De-50%V318 Auto Diagnostic Tool Scanner Automobile Battery Tester OBD2 Automobile Clear Fault Detects Supp$15.66 $31.30★ 4.7 · 2.5k soldView on AliExpress →
  10. 10KONNWEI KW906 Bluetooth5.0 - 5.2 OBD2 Scanners ELM327 V1.5 OBDII Fault Diagnostic Tool for-60%KONNWEI KW906 Bluetooth5.0 - 5.2 OBD2 Scanners ELM327 V1.5 OBDII Fault Diagnostic Tool for$11.02 $27.49★ 4.7 · 1.4k soldView on AliExpress →
  11. 11KONNWEI KW905 ELM327 OBD2 Scanner Bluetooth 5.0 Engine Fault Scanner Tool OBDII Code Reade-54%KONNWEI KW905 ELM327 OBD2 Scanner Bluetooth 5.0 Engine Fault Scanner Tool OBDII Code Reade$13.09 $28.30★ 4.7 · 1.1k soldView on AliExpress →
  12. 122026 KONNWEI KW330 Car OBD2 Diagnosis Tool Fault Scanner Engine Battery Test DTC LOOKUP Re-54%2026 KONNWEI KW330 Car OBD2 Diagnosis Tool Fault Scanner Engine Battery Test DTC LOOKUP Real-Time$27.95 $60.95★ 4.7 · 657 soldView on AliExpress →
  13. 13Professional V520 Multi-language Automotive OBD2 Scanner Diagnostic Tool Real Time Data OB-58%Professional V520 Multi-language Automotive OBD2 Scanner Diagnostic Tool Real Time Data OBD2 Fault$15.37 $36.20★ 4.9 · 475 soldView on AliExpress →
  14. 14LAUNCH X431 Creader CR3001 OBD2 Scanner Engine Fault Automotive OBDII OBD Code Reader Diag-57%LAUNCH X431 Creader CR3001 OBD2 Scanner Engine Fault Automotive OBDII OBD Code Reader Diagnostic Sca$18.60 $43.67★ 4.9 · 428 soldView on AliExpress →
  15. 152026 KONNWEI KW371 2in1 Car Battery Tester & 4 Pin 5 Pin Relay Tester 6V 12V 24V Fault Dat-56%2026 KONNWEI KW371 2in1 Car Battery Tester & 4 Pin 5 Pin Relay Tester 6V 12V 24V Fault Data Print$43.02 $98.56★ 4.9 · 200 soldView on AliExpress →
  16. 16KONNWEI MAXOBD Full System OBD2 Fault Scanner Bluetooth 5.2 Car OBDII Diagnostic Tool 41+-9%KONNWEI MAXOBD Full System OBD2 Fault Scanner Bluetooth 5.2 Car OBDII Diagnostic Tool 41+$21.87 $24.14★ 4.7 · 160 soldView on AliExpress →
  17. 17V318 OBD2 Scanner Code Reader, Car Engine Fault Diagnostic Tool With Battery Voltage Test,-53%V318 OBD2 Scanner Code Reader, Car Engine Fault Diagnostic Tool With Battery Voltage Test, Read &$9.20 $19.60★ 4.8 · 129 soldView on AliExpress →
  18. 18JDiag M200 PRO Diagnostic Scanner For Honda ECU Remap Scanner Battery Tester ABS System Fa-35%JDiag M200 PRO Diagnostic Scanner For Honda ECU Remap Scanner Battery Tester ABS System Fault$196 $302★ 4.7 · 79 soldView on AliExpress →
  19. 19OBD2 Scanner Car Diagnostic Scanner ABS SRS Transmission System Scanner Check Engine Fault-39%OBD2 Scanner Car Diagnostic Scanner ABS SRS Transmission System Scanner Check Engine Fault Code Read$72.28 $118★ 5.0 · 54 soldView on AliExpress →
  20. 20Obd2 Scanner Code Reader Car Diagnostic Tool Engine Fault Code Reader, Used to Clear Cel, -52%Obd2 Scanner Code Reader Car Diagnostic Tool Engine Fault Code Reader, Used to Clear Cel, with$9.13 $19.03★ 4.9 · 49 soldView on AliExpress →
  21. 212026 KONNWEI KW330 Professional Car OBD2 Diagnostic Tool Engine Battery Testing Fault Code-8%2026 KONNWEI KW330 Professional Car OBD2 Diagnostic Tool Engine Battery Testing Fault Code Erase$31.67 $34.35★ 5.0 · 41 soldView on AliExpress →
  22. 22Autel AL549 OBD2 Scanner AutoVin Code Reader Erase ABS DTC Battery Test Check Engine Fault-5%Autel AL549 OBD2 Scanner AutoVin Code Reader Erase ABS DTC Battery Test Check Engine Fault Diagnosti$57.57 $60.77★ 5.0 · 38 soldView on AliExpress →

Quick picks

Most popularPopular ELM327 WiFi OBD2 Diagnostic Scanner V1.5 Car Code Reader Check Engine Fa$3.56 · ★ 4.9 · 30.4k soldBest ratedOBD2 Scanner Car Diagnostic Scanner ABS SRS Transmission System Scanner Check En$72.28 · ★ 5.0 · 54 soldCheapest well rated1-20Pcs Universal Car SRS Airbag Simulator Emulator Resistor Bypass Fault Findin$1.59 · ★ 4.7 · 5.4k soldBiggest discountBluetooth ELM327 OBD2 Car Code Reader Scanner V1.5 Fault Detector Check Engine A$2.43 · ★ 4.9 · 3.3k sold

How much to pay

Tip: read the latest buyer photos on AliExpress and check the size or model before you order. Products with many orders and a rating of 4.7 or more are usually the safest choice.

Questions

What is the best-selling fault?

The most popular one is "Popular ELM327 WiFi OBD2 Diagnostic Scanner V1.5 Car Code Reader Check Engine Fault Detect", with 30.4k orders.

How much does a fault cost?

In this list prices go from $1.59 to $196; half of them cost less than $15.37.

Which fault has the best reviews?

"OBD2 Scanner Car Diagnostic Scanner ABS SRS Transmission System Scanner Check Engine Fault Code Read" has an average of 5.0 stars with many orders.

Are there discounts?

Yes. On average these products are 46% below their original price on AliExpress. Prices change often.

Prices and ratings come from AliExpress and can change. We may earn a commission when you buy through our links, at no extra cost to you.