Signal Circuit Inspection

Check for short to ground in harness
1. Ignition "OFF"
2. Disconnect TPS sensor connector and PCM connector.
3. Ignition "ON" & Engine "OFF"
4. Measure resistance between terminal 1 and 2 of sensor harness connector.
  Specification: infinite
  
  Fig 1: Measuring Resistance Between Terminal 1 And 2 Of Sensor Harness Connector
  Courtesy of HYUNDAI MOTOR CO.
5. Is measure resistance within Specification?
  YES
  - Go to "COMPONENT INSPECTION " procedure.
  NO
  - Short circuit to ground between TPS harness connector and signal circuit.
  - Repair as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
    NOTE:
    In case, when the TPS connector is disconnected, the voltage of TPS terminal 1 is 0 V.
    
    Possible cause: Open or short between terminal 16 of PCM and terminal 1 of TPS.