ABS light sensor leading to Transmission Failure

I would say there was dirty oil in the system, likely the cooler and/or cooler lines that had metal and other debris in it from the original failure that never got fully flushed and finally took its toll. Could have been a bad rebuild/reman. Oil filter change could have been done wrong, wrong fluid or not enough. I don't know enough about Hino to say further.

 

I'm honestly not seeing the correlation between an ABS fault and this transmission safe mode thing. Two unrelated systems. As far as I know, true automatics like Alisons are supposed to lock the torque converter for better efficiency (unlocked torque converters will always slip and cause inefficiency). Personally I think someone is feeding you a bunch of bull #### with that line about an ABS fault causing transmission failure.

 

I gotta agree with both, somebody is feeding you a line so they don’t have to stand behind it. Could have been anything in Heavyd’s post and AModelCat is also right. Two different systems and even with the computer controls working together, I can see the reason ABS would change the operation of a transmission.

I would go back to these shops and ask them for a glass of water and a bigger spoon......
I’d have a hard time eating their BS!!

 

I'm a mechanic also and call bs. The trans doesn't shift or do anything off abs

 

Coming to this late, but the original poster is not wrong. The ABS light DOES cause the torque converter to NOT lock up which will overheat the transmission. Hino even came out with a TSB, SB-14-016 and a bypass device (wiring harness and 2 relays) to prevent an ABS malfunction from doing this. The problem is that the tone rings on the disc brakes rust badly and when the teeth start to flake off they push the ABS sensor out and trip the light. If you have a Hino and see the ABS light stop driving IMMEDIATELY and get it fixed.

 

Interesting. Why'd they design something like that?