Component Inspection

Output speed sensor waveform Inspection
1. Connect "A/T solenoid valve" connector and Scantool to Data Link Connector(DLC).
2. Engine ON and operate Output speed sensor.
3. Measure waveform between signal of Output speed sensor harness and chassis ground.
  Specification : See specific waveform
  
  Fig 1: Measuring Waveform Between Signal Of Output Speed Sensor Harness And Chassis Ground
  Courtesy of KIA MOTORS AMERICA, INC.
  
  Fig 2: Identifying ATM Solenoid Valve And PCM Connector Terminals
  Courtesy of KIA MOTORS AMERICA, INC.
4. Is the measured waveform within specifications?
  YES
  - Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
  NO
  - Go to " 2 PCM/TCM Inspection" procedure.
PCM/TCM Inspection
1. Ignition "ON" & Engine "OFF".
2. Disconnect "ATM solenoid valve connector.
3. Connect scantool to Data Link Connector(DLC) and select Simulation mode.
4. Output specific frequency to signal of Input speed sensor by simulation mode.
  
  Fig 3: Display - Input Speed Sensor Current Data And Simulation Test (Output 150Hz)
  Courtesy of KIA MOTORS AMERICA, INC.
  
  Fig 4: Display - Input Speed Sensor Current Data And Simulation Test (Output 250Hz)
  Courtesy of KIA MOTORS AMERICA, INC.
  
  The values are subject to change according to vehicle model or conditions.
5. Is measured Output speed sensor value changed by input frequency?
  YES
  - Substitute with a known-good Output speed sensor and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
  NO
  - Substitute with a known-good PCM/TCM and check for proper operation. If the problem is corrected, replace PCM/TCM and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.