Component Inspection

Engine

Engine Control - P0111 Intake Air Temperature Sensor1 Circuit Range/Performance - Component Inspection

Component Inspection

1. Check IATS resistance
(1) IG "OFF".
(2) Disconnect IATS connector.
(3) Measure resistance between terminal 3 and 4 of IATS connector.(Component Side)
A. Specification :









(4) Is the measured resistance within specification?
YES
1) Go to "Check PCM" as follows.
NO
1) Substitute with a known - good IATS and check for proper operation.
If the problem is corrected, replace IATS and go to "Verification of Vehicle Repair" procedure.
2. Check PCM
(1) IG "OFF".
(2) Connect scantool and Engine "ON".
(3) Select simulation function on scantool.
(4) Simulate voltage at terminal 3 of IATS signal connector.








(5) Does the signal value of IATS change according to simulation voltage?
YES
1) Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "Verification of Vehicle Repair" procedure.
NO
1) Substitute with a known - good PCM and check for proper operation.
If the problem is corrected, replace PCM and go to "Verification of Vehicle Repair" procedure.