Component Inspection

Check TPS
1. Measure resistance between terminal 1 and 2 of sensor connector (To sensor side)
2. Measure resistance between terminal 2 and 3 of sensor connector (To sensor side)
  Specification: terminal 1 and 2, terminal 2 and 3
  
  Close: 0.71~1.38^kΩ , 1.6~2.4^kΩ
  
  Open: 2.2~3.4^kΩ
  
  Fig 1: Measuring Resistance Between Terminals 2 And 3 Of Sensor Connector
  Courtesy of HYUNDAI MOTOR CO.
3. Does each resistance indicate continuity circuit?
  YES
  - Go to "Check PCM" below.
  NO
  - Open circuit TPS.
  - Repair as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Check PCM
The purpose of checking PCM is to determine whether there is any malfunction of PCM.
1. Ignition "OFF"
2. Connect scan tool and Engine "ON "
3. Select simulation function on scan tool.
4. Simulate voltage at terminal 1 of TPS sensor signal connector.
5. Verify TPS voltage to change while raising or lowering simulation voltage with scan tool within 0.5~3.5 V
  Specification: If the data is changeable as simulation voltage changes, it's OK
  
  Fig 2: Identifying Scan Tool Display (Simulate Voltage)
  Courtesy of HYUNDAI MOTOR CO.
6. Is TPS signal value changed according to simulation voltage?
  YES
  - Check TPS for contamination, deterioration, or damage. Clean TPS with suitable cleaner as necessary and let air dry before reinstalling. If problem still exists, Substitute with a known-good TPS and check for proper operation.
    If the problem is corrected, replace TPS and then go to "VERIFICATION OF VEHICLE REPAIR " procedure
  NO
  - Substitute with a known-good PCM and check for proper operation. If the problem is corrected, replace PCM and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.