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19 best fault under CHF 20.00

We picked 19 fault from AliExpress with real orders and good reviews. Prices go from CHF 1.93 to CHF 19.04, 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 DetectCHF 3.56 CHF 7.75★ 4.9 · 30.4k soldView on AliExpress →
  2. 2RELIFE XA5 Inductance Tester Electromagnetic Non-Contact Fault Detection-53%RELIFE XA5 Inductance Tester Electromagnetic Non-Contact Fault DetectionCHF 1.93 CHF 4.14★ 4.9 · 23.3k soldView on AliExpress →
  3. 3Car 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 SCHF 8.32 CHF 18.53★ 4.9 · 8.7k soldView on AliExpress →
  4. 41-20Pcs 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 AiCHF 1.93 CHF 4.55★ 4.9 · 8.5k soldView on AliExpress →
  5. 5V510 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, ICHF 7.99 CHF 20.34★ 4.9 · 6.3k soldView on AliExpress →
  6. 6Bluetooth 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 AutomotiveCHF 2.43 CHF 7.34★ 4.9 · 3.3k soldView on AliExpress →
  7. 7V318 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 DeCHF 13.04 CHF 30.62★ 4.9 · 2.9k soldView on AliExpress →
  8. 8V318 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 SuppCHF 15.66 CHF 31.30★ 4.7 · 2.5k soldView on AliExpress →
  9. 9KONNWEI 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 forCHF 11.02 CHF 27.49★ 4.7 · 1.4k soldView on AliExpress →
  10. 10KONNWEI 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 ReadeCHF 13.09 CHF 28.30★ 4.7 · 1.1k soldView on AliExpress →
  11. 11KONNWEI KW906 ELM327 V1.5 OBD2 Car Fault Scanners Bluetooth 5.0 OBDII Diagnostic ToolKONNWEI KW906 ELM327 V1.5 OBD2 Car Fault Scanners Bluetooth 5.0 OBDII Diagnostic ToolCHF 10.15★ 4.5 · 739 soldView on AliExpress →
  12. 12Professional 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 ErrorCHF 15.37 CHF 36.20★ 4.9 · 475 soldView on AliExpress →
  13. 13LAUNCH 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 ScaCHF 18.60 CHF 43.67★ 4.9 · 428 soldView on AliExpress →
  14. 14Car OBD2 Scanner Diagnostic Tool Code Reader, Car Voltage Tester Engine Fault Code Scanner-49%Car OBD2 Scanner Diagnostic Tool Code Reader, Car Voltage Tester Engine Fault Code Scanner, Charging Tester DiCHF 11.20 CHF 21.78★ 4.5 · 343 soldView on AliExpress →
  15. 15Indicator Load Resistor 12V 20W Solve Blinker Error 26 Ohm LED Turn Signal Lights Fault De-7%Indicator Load Resistor 12V 20W Solve Blinker Error 26 Ohm LED Turn Signal Lights Fault Decoder Motorcycle FlaCHF 2.31 CHF 2.48★ 4.7 · 338 soldView on AliExpress →
  16. 16Obd2 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 Real-TimeCHF 9.13 CHF 19.03★ 4.9 · 49 soldView on AliExpress →
  17. 17Obd2 Scanner Code Reader Car Engine Fault Scanner Can Diagnostic Scan Tool, Reads and Eras-53%Obd2 Scanner Code Reader Car Engine Fault Scanner Can Diagnostic Scan Tool, Reads and Erases Error CodesCHF 13.49 CHF 28.70★ 4.6 · 17 soldView on AliExpress →
  18. 18Professional V520 OBD2 Diagnostic Scanner + BT172 Automotive Battery Tester Kit Read Clear-50%Professional V520 OBD2 Diagnostic Scanner + BT172 Automotive Battery Tester Kit Read Clear DTC Fault Codes LivCHF 19.04 CHF 38.10★ 5.0 · 16 soldView on AliExpress →
  19. 19Automobile Battery Voltage And Current Tester, Dual-Mode Parasitic Current Tester With Dis-53%Automobile Battery Voltage And Current Tester, Dual-Mode Parasitic Current Tester With Display Screen,Fault DiCHF 6.39 CHF 13.59★ 5.0 · 11 soldView on AliExpress →

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