Signal Circuit Inspection

WARNING: This page is about a different car, the 2015 Hyundai Sonata. However, it is still accessible from the selected car via links, so may be relevant.

■ Open Check

IG "OFF".
Disconnect HECU and AHB connector.
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 CAN High Terminal (Low Terminal) Of HECU Harness Connector And CAN High Terminal (Low Terminal) Of AHB Harness Connector
Courtesy of HYUNDAI MOTOR AMERICA
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.