Annoying issue 2001 Volvo 660 with Volvo engine Manual 10 sp Meritor

Hi guys

I'm new to this forum, I hope you can give me some ideas. About two months ago a yellow warning light started to pop up on my dash saying "check cab controller at next stop". The code details said "%acc pedal position electrical fault". It was coming on for a fraction of a second then it would go away. It didn't bothered me in the beginning but then in time it started to show up more often. Now it's very bad I got to a point where the truck is not drivable anymore. Every time I hit a pothole the warning light comes on and the truck chokes. I took it to the Volvo dealership here in Livonia Michigan, they charged me 700$ and they told me that they fixed some burned wires. Obviously the truck is doing the same thing so I guess that the dealership didn't fix anything. I replaced both the accelerator pedal with sensor and also the signal/cruise control switch. Stil doing the same thing. I am desperate. Here are the codes I get on my dash :

1. MID 128 PID 091 FMI 9

% accelerator pedal position - abnormal update rate#

2. MID 144 PID 091 FMI 3#

Cruise control % accelerator pedal position - Voltage above normal or shorted high#

3. MID 144 PID 091 FMI 4#

Cruise control % accelerator pedal position - Voltage bellow normal or shorted low#

4. MID 144 PID 230 FMI 7

Cruise control % accelerator pedal position - Total idle fuel used - Mechanical system not responding properly or out of adjustment#


Any ideas? Thanks a lot

 

Lol refund from Volvo dealership. That's funny. Joke aside, they may have found corroded wires that probably don't have anything to do with my issue. No dealer in this country will ever give you a refund for electric work.
That's not a bad thing. But that still doesn't fix my problem.

 

They said they checked every ground and wire and replaced or fixed the corroded ones

 

I see what you are saying. But that won't fix my issue. The dealership will do an even more ###### job after I do that. And it's the only dealer around, my other option is 100 miles away in Flint MI but that stealership is even worse

 

I will go back Monday, I called them today and they said that the mechanic that worked on my truck only comes back to work Monday. I made this thread to see if anybody else had this issue. Because you know what the dealer will say? Oh you need to replace the whole truck harness, 2k the harness and 2 k labor. And I doubt that I need to change all that, I wanna fix the issue that I have not the ones that I don't have