Check CAN Line

Check short to CAN power supply line
1. IG key "OFF".
2. Disconnect all of control module connector
3. IG "ON".
4. Measure resistance between CAN High and chassis ground.
5. Measure resistance between CAN Low and chassis ground.
  Specification: 0 Ω
Check short to CAN ground line
1. IG key "OFF".
2. Disconnect all of control module connector
3. IG "ON".
4. Measure resistance between CAN High and chassis ground.
5. Measure resistance between CAN Low and chassis ground.
  Specification: Ω (infinity)
  
  Fig 1: Measuring Resistance Between CAN High And Chassis Ground
  Courtesy of HYUNDAI MOTOR AMERICA
  
  Fig 2: Identifying ECM, TCM, EHPC, ECS Connector Terminals
  Courtesy of HYUNDAI MOTOR AMERICA
  
  Fig 3: Identifying SAS, IAP, SCC And Cluster Connector Terminals
  Courtesy of HYUNDAI MOTOR AMERICA
6. Is the measured resistance within specification?
  YES
  - Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
  - Go to next procedure.
  NO
  - Repair short to power supply in circuit of CAN and go to "VERIFICATION OF VEHICLE REPAIR " procedure
  - Repair short to ground in circuit of CAN and go to "VERIFICATION OF VEHICLE REPAIR " procedure