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Ask Leon Poston Your Own Question
Leon Poston
Leon Poston,
Category: Medium and Heavy Trucks
Satisfied Customers: 9
Experience:  Owner at Han-Liv Inc.
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I have a fuso with the A/T electronic fault light on, and the ECU DPF

Customer Question

I have a fuso with the A/T electronic fault light on, and the ECU DPF history will not reset. I believe somehow these issues are related. TCU codes are P0706, P0707, P0863, P0877, P1604. reset TCU and code P0707 returned immediately.
Submitted: 1 year ago.
Category: Medium and Heavy Trucks
Customer: replied 1 year ago.
vin: JL6BBD1S7AK007664
gear ratio 5.285, Tire: LT215/85R16
Customer: replied 1 year ago.
checked all fuses and tested all relays already.
Customer: replied 1 year ago.
Other symptoms: Transmision range selection light is not on in dash. Transmission is stuck in safe mode, in other words it is in third gear, whether you use the shifter to select anything. Will physically shift to reverse or drive, but drive is always in third gear. Attached is DTC's from Integration Control.
Expert:  Leon Poston replied 1 year ago.
Hi
I am Leon. I will try to help.
What kind of truck, engine and transmission do you have? It sounds like your transmission is the problem. I have seen this problem in trucks with an Allison transmission. The wiring harness going into transmission control module loses contact.

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