Signal Circuit Inspection

Check for open in signal circuit
1. Key "OFF".
2. Disconnect TPS connector.
3. Key "ON".
4. Measure the voltage between terminal 1 of TPS harness connector and chassis ground.
  1. Specification : Approx. 5V
    
    Fig 1: Measuring Voltage Between Terminal 1 Of TPS Harness Connector And Chassis Ground
    Courtesy of KIA MOTORS AMERICA, INC.
5. Is the measured voltage within specification?
  YES
  1. Go to " 2 Check for Short in signal circuit" procedure.
  NO
  1. Repair Open or Short to power in signal circuit and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Check for short in signal circuit
1. Key "OFF".
2. Disconnect TPS connector and ECM connector.
3. Measure the resistance between terminal 1 and 2 of TPS harness connector.
  1. Specification : Infinite
    
    Fig 2: Measuring Resistance Between Terminal 1 And 2 Of TPS Harness Connector
    Courtesy of KIA MOTORS AMERICA, INC.
4. Is the measured resistance within specification?
  YES
  1. Go to "COMPONENT INSPECTION " procedure.
  NO
  1. Repair Short to power in signal circuit and go to "VERIFICATION OF VEHICLE REPAIR " procedure.