Component Inspection

Check ECTS resistance.

IG "OFF".
Disconnect ECTS connector.

Measure resistance between terminal 1 and 3 of ECTS harness connector (component side).

SPECIFICATION

Temperature		Resistance (Ω)
°C	°F	Resistance (Ω)
-40	-40	48.14 kΩ
-20	-4	14.13-16.83 kΩ
0	32	5.79 kΩ
20	68	2.31-2.59 kΩ
40	104	1.15 kΩ
60	140	0.59 kΩ
80	176	0.32 kΩ

Fig 1: Measuring Resistance Between Terminal 1 And 3 Of ECTS Harness Connector

Courtesy of KIA MOTORS AMERICA, INC.

Is the measured resistance within specification?
YES
- Go to step 2.
NO
- Substitute with a known-good ECTS and check for proper operation.
- If the problem is corrected, replace ECTS and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

Check ECM/PCM.
1. IG "OFF" and disconnect ECTS connector.
2. Connect scan tool and Key "ON".
3. Select simulation function on scan tool.
4. Simulate voltage at terminal 1 of ECTS signal connector.
  
  Fig 2: Scan Tool Display - Simulate Voltage Of ECTS
  Courtesy of KIA MOTORS AMERICA, INC.
5. Does the signal value of ECTS change according to simulation voltage?
  YES
  - Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace 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.