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Old 02-24-2000, 09:31 PM
be459 be459 is offline
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Join Date: Jun 1999
Location: Los Angeles, Calif, USA
Posts: 521

If you have the diagnostic LED connected, you can count the blinks. Otherwise, count the time interval in seconds the blower is running (when the blower is cycling).

10 seconds (5 LED blinks) = outside temp sensor
20 seconds (10 LED blinks)= inside temp sensor
30 seconds (15 LED blinks)= feedback potentiometer
40 seconds (20 LED blinks)= evap temp sensor
50 seconds (25 LED blinks) = coolant temp guage sensor

This is a secondhand info. It may not apply to your car. I have never worked on the system before. That is all I know. Please comment if anyone has more info.

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