2015 Hino 195 P0746

likemlow

Seasoned Expediter
Mechanic
Before condemning the transmission I thought I would ask if anyone has a fix for this code. The code comes up after driving for 200 miles. Says Trans control system 1 fault. We get the red flashing "check trans" light with reduced power. We've already replaced the Shift Solenoid and Pressure Sensor, swapped wire harnesses from another truck and drained and filled the trans 3 times. I'm going to go through the trouble tree one more time today to see if the trans or TCM is failing. Any input would be greatly appreciated!!
 
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