Component Inspection

Check "INPUT SPEED SENSOR"

Ignition "OFF".
Disconnect the "INPUT SPEED SENSOR" connector.
Measure resistance between terminal "1","2" and "2","3" and "1","3" of the "INPUT SPEED SENSOR" connector.
Specification: Refer to "DATA REFERENCE CHART "

Fig 1: Measuring Resistance Between Input Speed Sensor Connector Terminal
Courtesy of KIA MOTORS AMERICA, INC.

Is resistance within specifications?

[REFERENCE DATA]

DATA REFERENCE CHART

Data	Reference Data
Current	22 mA
Air Gap	Input sensor	1.3 mm
Air Gap	Output sensor	0.85 mm
Resistance	Input sensor	Above 4 MΩ
Resistance	Output sensor	Above 4 MΩ
Voltage	High	4.8 ~ 5.2V
Voltage	Low	Below 0.8V

YES : --> Go to 2 "CHECK PCM" as below.

no : --> Replace "INPUT SPEED SENSOR" as necessary and Go to "VERIFICATION OF VEHICLE REPAIR " procedure.

CHECK PCM
1. Ignition "ON" & Engine "OFF".
2. Connect "INPUT SPEED SENSOR" connector.
3. Install scantool and select a SIMU-SCAN.
4. Simulate frequency to INPUT SPEED SENSOR signal circuit.
  
  Fig 2: Display Screen Of - SIMU-SCAN
  Courtesy of KIA MOTORS AMERICA, INC.
5. Is "INPUT SPEED SENSOR" signal value changed according to simulation frequency?
  YES : --> 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 : --> Substitute with a known-good PCM/TCM and check for proper operation. If the problem is corrected, replace PCM/TCM as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.