Ignition "OFF" & Engine "OFF"
Disconnect ECT sensor connector
Measure resistance between terminals 1 and 3 of the sensor connector(C04)(To ECT sensor)
Specification :
Temperature | Resistance(㏀) |
-20℃(-4℉) | Approx. 14.13 ~ 16.83 |
20℃(68℉) | Approx. 2.31 ~ 2.59 |
80℃(176℉) | Approx. 0.32 |
Is ECT sensor parameter near the specified value?
YES
Thoroughly check connectors for loose or poor connections, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "Verification of Vehicle Repair" procedure
NO
Test with a new ECT sensor and check for proper operation. If problem is corrected, replace ECT sensor. Go to "Verification of Vehicle Repair" procedure