Signal Circuit Inspection

Check voltage
1. IG "OFF" and disconnect TPS connector.
2. IG "ON" and ENG "OFF"
3. Measure voltage between terminal 7 of TPS harness connector and chassis ground.
  1. Specification : Approx. 5V
    
    Fig 1: Measuring Voltage Between Terminal 7 Of TPS Harness Connector And Chassis Ground
    Courtesy of KIA MOTORS AMERICA, INC.
4. Is the measured voltage within specification?
  YES
  - Go to " 3 Check short to battery in harness" as follows.
  NO
  - Go to " 2 Check open in harness" as follows.
Check open in harness
1. IG "OFF" and disconnect TPS connector and PCM connector.
2. Measure resistance between terminal 7 of TPS harness connector and terminal 48 of PCM harness connector.
  1. Specification : Below 1Ω
    
    Fig 2: Measuring Resistance Between Terminal 7 Of TPS Harness Connector And Terminal 48 Of PCM Harness Connector
    Courtesy of KIA MOTORS AMERICA, INC.
3. Is the measured resistance within specification?
  YES
  - Go to "GROUND CIRCUIT INSPECTION " procedure.
  NO
  - Repair open in harness, and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Check short to battery in harness
1. IG "OFF" and disconnect TPS connector and PCM connector.
2. Measure resistance between terminals 4 and 7 of TPS harness connector.
3. Measure resistance between terminals 1 and 7 of TPS harness connector.
4. Measure resistance between terminals 2 and 7 of TPS harness connector.
5. Measure resistance between terminals 3 and 7 of TPS harness connector.
  1. Specification : Infinite
    
    Fig 3: Measuring Resistance Between Terminals 1 And 7 Of TPS Harness Connector
    Courtesy of KIA MOTORS AMERICA, INC.
6. Is the measured resistance within specification?
  YES
  - Go to "GROUND CIRCUIT INSPECTION " procedure.
  NO
  - Repair short to battery in harness, and go to "VERIFICATION OF VEHICLE REPAIR " procedure.