I have a 2006 Monterey with a C-9, 350 HP Cat engine. I had the check engine light and service engine light come on so i have a Cat mechanic from Ring Power coming tomorrow to see what if any fault codes are in the system. Is the point where he would hook his computer on the dash in front of the steering wheel? If not can anyone tell me where to direct this mechanic? The lights have only come on once and have not come on since but not wanting to face a serious problem I thought it prudent to have it checked out. The coach no longer has an Aladdin system in working condition as it had to be disconnected when a lightning strike damaged the cable connecting the engine and transmission to the Aladdin system.