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Old 03-24-2007, 06:18 PM   #1
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obd2 code 1492

I'm getting a code of 1492.

Suggestions on what I need to be doing to correct this,

Ambient/Batt Temp Sensor Volts Too High | External temperature sensor input above acceptable voltage.

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Old 03-24-2007, 07:29 PM   #2
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Your battery has a B.T.S. battery temp sensor. It monitors your batt temp and determines the battery charging rate.
The PCM sends 5volts to the sensor and is grounded on a return line. As temperture increases, resistance in the sensor decreases and the detection voltage at the PCM increases.
System voltage will be higher at colder temps and is gradually reduced as things heat up.
The sensor is located under the battery in the tray.
disconect the pig tail harness then pry the sensor up through the tray.

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Old 03-24-2007, 08:22 PM   #3
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Quote:
Originally Posted by Rawkon View Post
The sensor is located under the battery in the tray.
disconect the pig tail harness then pry the sensor up through the tray.
And do what?
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Old 03-24-2007, 08:28 PM   #4
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replace it or test it. lol sorry man. see what voltage its getting suppoesed to be 5 volts, but it may be malfuctioning as things heat up. it cant cost too much to replace
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Old 03-24-2007, 09:00 PM   #5
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Kind of what I figured but thought I would ask. As for cost... $50 for that thing. OUCH!!
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