The logic module uses this sensor to determine the ambient air temperature near the battery. The sensor is located inside the power module (or SMEC) and measures the air as it flows through the module. This information is used to calculate the target charging system voltage and intake air density.
If the temperature sensor output voltage is less than 0.04V or greater than 4.96V, a fault code 44 is stored and the charging rate is set to 14.0V. If the sensor output comes back into range, the logic module will begin using the sensor to calculate charging rates again.
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Copyright © 1996-2003 Russ W. Knize.