Signal Circuit Inspection

■ Open Check 

1. IG "OFF".
2. Disconnect HECU and AHB connector.
3. Measure resistance between CAN HIGH Terminal (LOW Terminal) of the HECU harness connector and CAN HIGH Terminal (LOW Terminal) of the AHB harness connector.

   Specification:  Approx. below 1Ω

   Fig 1: Measuring Resistance Between (Low Terminal) Of HECU Harness Connector And AHB Harness Connector

   Courtesy of HYUNDAI MOTOR AMERICA
4. Is the measured value within specifications?

   YES 

   • Go to "COMPONENT INSPECTION " procedure.

   NO 

   • Repair open in CAN BUS line between HECU harness connector and AHB harness connector and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.