As I’m behind the schedule for the Eng Refresh, decided to work over the weekend to finish the service on this board as much as possible. In the past, I repaired the CCU board that required 25 extra services but almost all of the damages were caused by someone without proper soldering or electronics training so I don’t refer it as natural failure. The worst CCU board that I serviced in the past with natural failure required ...
As expected, DM10 and 11 had to be removed in order to check the nearby tracks and clean the area. These old components have to be carefully removed without breaking them as they are no longer manufactured. They are not RoHs compliant. ...
While carrying out the Eng Refresh, another owner sent in his A/C CCU board for preventative maintenance. He wanted to clean his cabin temperature sensor due to lots of dust trapped at the aspirator fan (and possibly making annoying noise) and although he was not experiencing noticeable issues with his A/C system, he thought it would be a good idea to have the CCU serviced while the centre console was off. ...