Component Inspection

Check TPS resistance.

Key "OFF".
Disconnect TPS connector.

Measure the resistance between terminal 2 and 3 of TPS component side.

RESISTANCE SPECIFICATION

ITEM	Specification
TPS Resistance (kΩ)	1.6-2.4 kΩ at 20°C (68°F)

Fig 1: Measuring Resistance Between Terminal 2 And 3 Of TPS

Courtesy of KIA MOTORS AMERICA, INC.

Is the measured resistance within specifications?
YES
- Go to step 2.
NO
- 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.

Check ECM/PCM.
1. Key "OFF".
2. Connect the scan tool and select "Simulation SCAN" in the menu.
3. Connect channel A of scan tool with terminal 1 of TPS harness connector, and key "ON".
4. Simulate voltage at signal line.
  
  Fig 2: Scan Tool Display - Simulate Voltage
  Courtesy of KIA MOTORS AMERICA, INC.
5. Does the signal output of TPS change according to simulation voltage?
  YES
  - Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
  NO
  - Substitute with a known-good ECM/PCM and check for proper operation.
  - If the problem is corrected, replace ECM/PCM and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

NOTE: There is a memory reset function on scan tool that can erase optional parts automatically detected and memorized by ECM/PCM.
Before or after testing ECM/PCM on the vehicle, use this function to reuse the ECM/PCM.