Monitor KDS/GDS Data

Check PCM Communication 

1. Ignition "ON" & Engine "OFF"
2. Connect KDS/GDS and setup the oscilloscope.
3. Back probe and measure signal waveform of Pin No. 61 (EMS COM) terminal of PCM main harness connector and chassis ground by using VMI A channel. (AT)
4. Back probe and measure signal waveform of Pin No. 83 (EMS COM) terminal of PCM main harness connector and chassis ground by using VMI A channel. (MT)

   Specification  : Refer to Figure below

   Fig 1: Screen Display - Communication Signal Waveform Between SMK Unit And ECM/PCM

   Courtesy of KIA MOTORS AMERICA, INC.
5. Is the measured signal waveform normal?

   YES 

   • Fault is intermittent caused by poor contact in Smart Key unit and/or PCM's connector or was repaired and Smart Key unit and memory was not cleared. Thoroughly check 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 

   • Go to "SMK Status Information" procedure.

SMK Status Information 

1. Ignition "ON" & Engine "OFF"
2. Erase DTC after connecting KDS/GDS.
3. Check Smart key status in "Vehicle S/W management", if DTC is retrieved.
   Fig 2: Screen Display - Select SMK Status Information In Vehicle S/W Management

   Courtesy of KIA MOTORS AMERICA, INC.
   Fig 3: Screen Display - Registered Key Number And Learning Status

   Courtesy of KIA MOTORS AMERICA, INC.
4. Is the Smart key unit learnt status?

   YES 

   • Fault is intermittent caused by poor contact in Smart Key unit and/or PCM's connector or was repaired and Smart Key unit and memory was not cleared. Thoroughly check 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 

   • Go to "Wiring Inspection " procedure.