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FLA -198 FUEL SYSTEM SIGNAL CIRCUIT INSPECTION EEB2E54B 1. IG "OFF" and disconnect IATS connector. 2. IG "ON" and ENG "OFF" 3. Measure voltage between terminal 4 of IATS harness connector and chassis ground. Specification : Approx. 5V 4. Is the measured voltage within specification ? YES ▶ Go to "Ground Circuit Inspection" procedure. NO ▶ Repair open or short to ground in harness and go to "Verification of Vehicle Repair" procedure. GROUND CIRCUIT INSPECTION EFF73DC7 1. IG "OFF" and disconnect IATS connector. 2. Measure voltage terminal 4 of IATS harness connector and chassis ground. 3. Measure voltage terminal 4 and 5 of IATS harness connector. Specification : Voltage difference between measurement "A" and "B" is below 200mV. 4. Is the measured voltage within specification ? YES ▶ Go to "Component Inspection" procedure. NO ▶ Repair contact resistance or open in harness and go to "Verification of Vehicle Repair" procedure. COMPONENT INSPECTION EF987E04 1. Check resistance of IATS 1) IG "OFF" and disconnect IATS connector. 2) Measure resistance between terminal 4 and 5 of IATS connector.(Component Side) SPECIFICATON : Temp. (℃/℉) Resistance (kΩ ) Temp. (℃/℉) Resistance (kΩ ) -40(-40) 95.95 ~ 105.78 20(68) 3.42 ~ 3.61 -20(-4) 27.4 ~ 29.77 40(104) 1.43 ~ 1.5 0(32) 9.08 ~ 9.72 60(140) 0.66 ~ 0.69 10(50) 5.49 ~ 5.83 80(176) 0.33 ~ 0.34 |