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Unread 06-19-2003, 12:32 PM   #1
fut
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Join Date: Nov 2002
Location: Fresno
Posts: 145
OBD II - code: P1492

Ok, i have a check engine light on. So i took it to my friends shop and he ran the OBD II scanner on it, and gave me a code of "P1492". Now, i looked up the code (I found it here: http://www.troublecodes.net/chrysler/95-98truck.shtml ) and it states: "Battery Temperature Sensor Voltage Too High". I've been having problems with my battery lately, and i did disconnect a sensor that was around there, the light didn't come on. After i drove it around a bit, it came on.

My Question:

1) What is this sensor for?

2) If i hook everything back up, just like it was, would the light go off? (I havent tried this because i cut the battery wire too short, so i have to buy a cable first. I just hooked up the sensor itself and the light was still on, but when i did this the sensor was not touching the battery in anyway).

Any information on this would be helpful, thanks!

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Unread 06-19-2003, 03:40 PM   #2
fut
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Join Date: Nov 2002
Location: Fresno
Posts: 145
OK, i just read on a TJ article that after 40 warm-up's the light will go off.

Also if you disconnect your battery for 15+ minutes the computer will reset itself, and this will cause the MIL (check engine light) to go off.

Do these options work on XJ's too?
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Unread 06-21-2003, 02:52 AM   #3
EricsXJ
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Join Date: Apr 2001
Location: Reno, Nevada
Posts: 8,573
I might be wrong but...

I think the light will go off after 3 startups after the problem has gone away. If the problem still exists, the light will continue to come on.
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