Check Transmission Light With Code 37 on Isuzu Trooper

Problem Description and Possible Solution

The check transmission light may illuminate with a stored code 37. This is commonly caused by electrical interference on the data communication circuit between the transmission control module (TCM) and the engine control module (ECM). Our technicians recommend that all related connection and ground locations should be inspected and repaired as necessary. In some cases electromagnetic interference may be the cause, shielding of the affected wiring may be of help it this case.

Problem Data
RepairPal Verified
Average mileage: 133,284 (18,756–300,000)
7 model years affected: 1992, 1993, 1994, 1995, more1997, 2001, 2002
22 people reported this problem
Viewing 1 - 5 of 5 comments
I have same problem like this. I drived my car about 1 hr in heavy traffic area. And then, CHECK TRANS light blinking. How to fix it?
1994 isuzu trouper SE.3.2 POHC Transmission check light its hashing and why it move slow in drive.
check trans light flashing code 37 exaspsperating
My isuzu trooper don't shift and the light stay and the3 gear
my Isuzu has been reflecting transmission light for 2 years. i havent seen any other problem yet