1997 Isuzu Trooper dtc 37

1997 ISUZU TROOPER
250,000 MILES • 3.2L • V6 • 4WD • AUTOMATIC
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SAMLUDVIG
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Dear sir
I am trying for some time to find a solution to the dtc 37
I have Isuzu wiring diagrams and diagnostic procedures
I also use tech1 but to no avail
the problem is that when I connect the tech 1 it sets high line pressure as default , and when I drive in order to make the problem reaper while recording on the tech 1, the problem doesn't show up.
it only appears as soon as I disconnect the tech 1
I followed the Isuzu diagnosis of the fault code to the letter , numerous times .
All tests are o.k which means the fault is in the mem cal.....
but I also replaced each ecu separately and both together , and the code still appears
I replaced both shift solenoids with no result , still get code 37
pls help
sam
Dec 30, 2013 at 12:29 PM
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HMAC300
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i'm surprised you can connect a tech 1 to your car, a tech 1 only reads OBD1 codes I think and you have an OBD2 system which there is no code 37. try a tech 2 to read your codes. the code 37 only relates to a hombre,passport and rodeo not a trooper so I think it is erroneous
Dec 30, 2013 at 4:43 PM
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SAMLUDVIG
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Dear expert
96-97 models that were sold in my country arrived with aldl protocol but obd 2 connector
tech 1 has an obd 2 interface and thus reads these codes
I'm also working with an Isuzu diagnostic book that is for 97 model and dtc 37 is there
any way since I basically did every thing by the book an more to no avail ,
I decided to take out the tranny and swap it for a one that I have on the shelf
if I still get code 37 ....... I'll shoot the damn car .....
Jan 3, 2014 at 11:05 PM
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