Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Air Temperature Sensor ( Ambient / Intake ): Testing and Inspection




INTAKE AIR TEMPERATURE (IAT) SENSOR INSPECTION [MZI-3.7]

Resistance Inspection

1. Disconnect the MAF/IAT sensor connector.

2. Measure the resistance between MAF/IAT sensor terminals A and F.






- If not within the specification, replace the MAF/IAT sensor. Service and Repair
IAT sensor resistance





IAT sensor characteristics graph (reference)