Monitor GDS Data

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

■ Check VMCU Communication

Ignition "ON" (Power Button LED "Red")
Connect GDS and setup the oscilloscope.
Back probe and measure signal waveform of Pin No. 15 (EMS COM) terminal of VMCU main harness connector and chassis ground by using VMI A channel.
Specification: Refer to Figure below

Fig 1: Screen Display - Communication Signal Waveform Between SMK Unit And VMCU
Courtesy of KIA MOTORS AMERICA, INC.
Is the measured signal waveform normal?
YES
- Fault is intermittent caused by poor contact in Smart Key unit and/or VMCU'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 below.

■ SMK Status Information

Ignition "ON" (Power Button LED "Red")
Erase DTC after connecting GDS.
Check Smart key status in "Vehicle S/W Management" , if DTC is retrieved.

Fig 2: Screen Display - Vehicle S/W Management
Courtesy of KIA MOTORS AMERICA, INC.

Fig 3: Screen Display - SMK Status (Learnt)
Courtesy of KIA MOTORS AMERICA, INC.
Is the Smart key unit learnt status?
YES
- Fault is intermittent caused by poor contact in Smart Key unit and/or VMCU'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.