CAN COMMUNICATION SYSTEM > HOW TO PROCEED WITH TROUBLESHOOTING



  1. VEHICLE BROUGHT TO WORKSHOP

  2. CUSTOMER PROBLEM ANALYSIS

  3. CHECK BATTERY

  4. CHECK AND CLEAR DTCS*

  5. CHECK DLC3 BRANCH LINE AND V1 BUS MAIN LINE (CANH - CANL)

  6. CHECK FOR SHORT TO GND IN V1 BUS (CANH, CANL - CG)

  7. CHECK FOR SHORT TO +B IN V1 BUS (CANH, CANL - BAT)

  8. CHECK INSTALLED SYSTEMS (ECU AND SENSOR) THAT USE CAN COMMUNICATION

  9. CHECK ECUS CONNECTED TO CAN BUS*

  10. RECHECK DTC

  11. DTC COMBINATION TABLE

  12. CIRCUIT INSPECTION

  13. IDENTIFICATION OF PROBLEM

  14. REPAIR OR REPLACEMENT

  15. CONFIRMATION TEST*