2.
Probe(+) : ECTS signal circuit NO3
Probe(-) : ECTS ground circuit NO1.
a.
Specification: 20℃(68℉) : 2.27~2.64㏀ ,80℃(176℉) : 0.30~0.33㏀
The resistence check of ECTS component is for finding whether open circuit is in the component.
Measure resistance of ECTS signal circuit between ground circuit.
Probe(+) : ECTS signal circuit NO3
Probe(-) : ECTS ground circuit NO1.
Specification: 20℃(68℉) : 2.27~2.64㏀ ,80℃(176℉) : 0.30~0.33㏀
Does each resistance indicate continuity circuit?
YES
Go to "ECM Inspection"
NO
Open circuit ECTS
Repair as necessary and go to "Verification of Vehicle Repair" procedure
The purpose of checking ECM is to determine whether there is any malfunction of ECM .
ECTS connect and Turn ignition switch to ON.
Probe(+) : ECTS harness connector NO4.
Probe(-) : Chassis ground.
Verify IAT voltage to change while raising or lowering simulation voltage with scan tool within 0.5~3.5 V.
Specification: If the data is changeable as simulation voltage changes, it’s OK.
Is temperature data changing within specification?
YES
Temporarily install a known good ECTS and check for proper operation.
If problem is corrected, replace ECTS.
NO
ECM internal faulty.
Repair as necessary and go to "Verification of Vehicle Repair"
