Check ECTS
Ignition "OFF"
Disconnect ECTS connector.
Measure resistance between terminals 1 and 3 of the ECT sensor (to ECT sensor side).
Specification : Error range is 2~3%
Temperature(℃/℉) | -40/40 | -30/-22 | -20/-4 | 0/32 | 20/68 | 80/176 | 100/212 | 110/230 | 120/248 |
Resistance(kΩ) | 45.3 | 25.6 | 15.1 | 5.8 | 2.5 | 0.33 | 0.19 | 0.16 | 0.13 |
Voltage(V) | 4.48 | 4.34 | 4.12 | 3.46 | 2.57 | 0.64 | 0.39 | 0.34 | 0.27 |
Is the measured resistance within specifications ?
YES
▶ Substitute with a known - good PCM and check for proper operation.
If the problem is corrected, replace PCM and go to "Verification of Vechicle Repair" procedure.
NO
▶ Substitute with a known - good ECTS and check for proper operation.
If the problem is corrected, replace ECTS and go to "Verification of Vechicle Repair" procedure.