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Home >> Kia >> 2017 >> Optima Plug-In Hybrid EX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 62 (Smart Key Code Saving Diagnosis (Except HEV)) >> DTC P1676-00: Immobilizer-Smartra Message Error >> DTC Inspection >> Monitor KDS/GDS Data

Monitor KDS/GDS Data

WARNING: This page is about a different variant/trim than selected.

■ Check ECM/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. 83 (EMS) terminal of ECM main harness connector and chassis ground by using VMI A channel. (GAMMA 1.6 T-GDI DCT)
  4. Back probe and measure signal waveform of Pin No. 14 (EMS) terminal of PCM main harness connector and chassis ground by using VMI A channel. (THETA II 2.0 T-GDI)
  5. Back probe and measure signal waveform of Pin No. 14 (EMS) terminal of PCM main harness connector and chassis ground by using VMI A channel. (THETA II 2.4 GDI)

    Specification:  Refer to Fig 1 below

    Fig 1: Screen Display - Communication Signal Waveform Between SMK Unit And PCM
    G12134618Courtesy of KIA MOTORS AMERICA, INC.
  6. Is the measured signal waveform normal?

    YES 

    • Fault is intermittent caused by poor contact in the part's and/or PCM connector or was repaired and SMK unit 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 

  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
    G12134619Courtesy of KIA MOTORS AMERICA, INC.
    Fig 3: Screen Display - Registered Key Number And Learning Status
    G12134620Courtesy of KIA MOTORS AMERICA, INC.
  4. Is the Smart key unit learnt status?

    YES 

    • Fault is intermittent caused by poor contact in the part's and/or PCM connector or was repaired and SMK unit 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 

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