Perhaps that is the one throwing the code having what seems to be a high resistance (open circuit?)? The smaller one with the solar collector insert is of unknown function but I m thinking it's related to the automatic HVAC system. I tried a peekaboo test and the larger one seemed to control the automatic headlights Covered and the lights went on and uncovered the lights went off soit seems to be functioning properly. That one has a barrel shaped cavity inside tinted plastic shell and at the base is a visible circuit board. I wasn't sure how to take a measurement on that one. ![]() Then there is a 1 1/8" diameter sensor (?) in front of the passenger, also in the vent strip that has three connector tangs. Outdoors it went down to 15M which seems counterintutive to what I've read where it was expected to go up. Using an ohmmeter it showed 45M ohms when measured in the house. There is a 3/4" diameter sensor centered and it appears to have a solar collector type insert inside and has two connector tangs. I got to it easily by pulling the vent strip out, but actually there are two sensors in the dash vent strip near the windshield. ![]() And then again it could be a flaky code reader but then there would be no explanation for the odd HVAC control performance. The scanner code (tested out in the sunlight) description says possible "faulty sensor, shorted harness, poor connection, faulty ac control module: in that order. Click to expand.No dash mat and the sensors are exposed in the defroster vent strip looking out of the windshield.
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