2003 XC70 U0073 code

Post by **2003VXC70** » 02 Nov 2015, 14:08

Hi, Im newbie here. I need help on fixing or anyone had the same problem with the code. The code said about control module or TCM (transmission control module). Thanks in advance.

MarcM · Post by **MarcM** » 02 Nov 2015, 14:54

Jumping around, quickly found a common thread:
https://www.matthewsvolvosite.com/forums ... =9&t=63277

Couple others:
http://forums.swedespeed.com/showthread ... -not-start

From what I can find... the TCU is having an issue. Check connections... I've fixed a lot of issues just unplugging/plugging connectors that have oxidized.

Another site (for heavy Chevy's):
- Faulty CAN communication system
- CAN System harness is open or shorted
- CAN System circuit poor electrical connection