Operation CHARM: Car repair manuals for everyone.

Component Inspection


1. Remove sensor from vehicle, then allow sensor temperature to stabilize in outside air for 10 minutes.
2. Using ohmmeter, check for resistance of 2.1-2.9K ohms at 66-70°F (19-21°C).
3. Place sensor in water and heat slowly. Check sensor for resistance of 250-390 ohms at 174-178°F (79-81°C).