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 EPCU 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 EPCU 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 EPCU
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 EPCU'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 - 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.
Is the Smart key unit learnt status?
YES
- Fault is intermittent caused by poor contact in Smart Key unit and/or EPCU'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.