Yukon/Denali 2WD V8-4.8L VIN V (2005)
Steps 13 - 15
Temperature Display Inaccurate - Mirrors
MIRRORS - TEMPERATURE DISPLAY INACCURATE
DIAGNOSTIC AIDS
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An inaccurate temperature display indicates an abnormal resistance condition within the system.
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For intermittent diagnosis, refer to Diagnostic Aids for Circuit Testing and Wiring Repair procedures.
Ambient Air Temperature Sensor Resistance
The table will be used to measure the resistance of the sensor and compare it with the actual ambient temperature. The mirror's temperature accuracy
should be within 5 degrees of the actual temperature. The actual temperature should not be taken from a radio station, a sign displaying the
temperature, etc. A temperature measuring tool such as a thermometer should be used. Some temperature measuring tools may be within 5 degrees of
the actual temperature. Make sure to consult the manufacturer for the accuracy of the tool. This comparison can make the mirror seem off by 5-10
degrees of the actual temperature when it is not.
TEST
