Component Inspection

IG KEY: OFF, Engine: OFF
Disconnect IAT sensor connector (B-30).

Measure resistance between terminals 1 and 3 of the IAT sensor connector B-30.

Specification:

IAT SPECIFICATION REFERENCE CHART

Temperature °C (°F)	-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

(error range is 2~3%.)

Is IAT resistance within specifications?
YES
1. IAT sensor is OK.
2. Possibility of PCM malfunction.
3. Test with a new PCM and check for proper operation. If problem is corrected replace PCM and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
1. Test with a new IAT sensor and check for proper operation. If problem is corrected, replace it.
2. Go to "VERIFICATION OF VEHICLE REPAIR " procedure.