Main Harness Circuit Inspection

Ignition "OFF".
Disconnect the battery (-) terminal cable from the battery and wait at least one minutes.
Disconnect SRSCM main harness connector.
Connect the battery (-) terminal cable to the battery and Ignition "ON" & Engine "OFF".
After connect GDS, select "Oscilloscope" mode.
Measure the signal waveform on SRSCM CAN High line and Low line.
Specification: Refer to "SIGNAL WAVEFORM "

Fig 1: Measuring Signal Waveform On SRSCM CAN High Line And Low Line
Courtesy of HYUNDAI MOTOR AMERICA
Does the measured signal waveform follow the specification?
YES
- Check airbag fuse, junction block, Warning Lamp, harness between junction block and SRSCM. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
- Check warning lamp and 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.