CAN Register and Communication Line Inspection

■ CAN Register and Communication Line Inspection 

1. IG KEY OFF.
2. HCU, PCM, MCU, BMS, A.A.F, FATC....connector.
3. Measure resistance between terminal 3 and 11 of diagnostic connector.

   Specification:  About 60

   Fig 1: Measuring Resistance Between Diagnostic Connector Terminal 3 And 11

   Courtesy of HYUNDAI MOTOR AMERICA
   Fig 2: CAN Connector Terminals

   Courtesy of HYUNDAI MOTOR AMERICA
   Fig 3: Data Link Connector Terminals

   Courtesy of HYUNDAI MOTOR AMERICA
4. Is the measured resistance within specification?

   YES 

   • Check Each Module connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

   NO 

   • If the measured value is out of specification, repair or replace 120 CAN register (Inside of PCM and BMS) and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.
   • If the measured value is lower than 10, repair or replace CAN High and CAN Low are short each other. And then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.
   • If the measured value is, repair or replace the open in CAN High/CAN Low circuit. And then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.
   • Go to next procedure.