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Code 45 '97+?

basalt51

NAXJA Member #761
Location
Woodland, CA
From Go Jeeps website:

45 Trans temperature/ Governor pressure voltage out of range. Less than 1.55 or above 3.73volts for temperature and less than .1 or above 4.89 volts. Trans temp. to high or low. OD switch input too low for more than 5 mins.

Any help? Pretty sure it's not the battery or alternator like pre-97. My battery is less than 1 year old Optima Blue top.

So what are teh Od switch and Trnas temp / governor?
 
Anybody?
 
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