Component Inspection

Check ECTS

IG "OFF" and disconnect ECTS connector.

Measure resistance between terminals 1 and 3 of ECTS connector. (Component side)

Specification:

RESISTANCE SPECIFICATION

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

Fig 1: Measuring Resistance Between Terminals 1 And 3 Of ECTS Connector (Component Side)

G06804623

Courtesy of HYUNDAI MOTOR CO.

Is the measured resistance within specification?
YES
- Go to " 2 Check PCM" as follows.
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 PCM
1. IG "OFF" and connect scantool.
2. Connect probe to terminal 3 of ECTS harness connector.
3. IG "ON" and ENG "OFF" and simulation Function on scantool.
4. Simulate voltage at terminal 3 of ECTS harness connector.
  
  Fig 2: Scan Tool Display - Simulate Voltage
  Courtesy of HYUNDAI MOTOR CO.
5. Does the signal value of ECT sensor 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 PCM and check for proper operation. If the problem is corrected, replace PCM and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
  NOTE: There is a memory reset function on scantool that can erase optional parts automatically detected and memorized PCM. Before or after testing PCM on the vehicle, use this function to reuse the PCM on the others