Fault code 153 or 154 will set a Yellow lamp. Intake Manifold Air Temp sensor.
Will need to be able to read codes to see if this has high counts.
I am unable to copy/paste from Insite.
The IAT sensor is used by the ecm to monitor the engine IAT. The IAT signal is used by the ECM for engine protection, cold start aid and fueling control.
A properly operating sensor will read.
TEMP . OHMS
32 30K-36K
77 9K-11K
122 3K-4K
167 1350-1500
212 600-675
Will need to be able to read codes to see if this has high counts.
I am unable to copy/paste from Insite.
The IAT sensor is used by the ecm to monitor the engine IAT. The IAT signal is used by the ECM for engine protection, cold start aid and fueling control.
A properly operating sensor will read.
TEMP . OHMS
32 30K-36K
77 9K-11K
122 3K-4K
167 1350-1500
212 600-675
