Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum - View Single Post - SYNC Update Available on Focus!!!
View Single Post
Old 09-25-2012, 07:41 PM   #263
Focus Fanatic
Join Date: Jul 2011
Fan#: 88299
Location: Torrance, CA
What I Drive: 2012 sterling gray Titanium

Posts: 3,562
Points 5,141, Level 45
Points: 5,141, Level: 45 Points: 5,141, Level: 45 Points: 5,141, Level: 45
Level Up 96% Completed
Level up: 96% Level up: 96% Level up: 96%
Forum Activity 8%
Activity: 8% Activity: 8% Activity: 8%
FF Reputation: 11 Kabigon Great Standing Member
Buy-Sell-Trade Rating: (0)
Originally Posted by oritpro View Post
Out of curiosity, why on earth would the IPC act as a gateway between the APIM and HVAC module?
There are 3 can buses: HS-CAN (High Speed), MS-CAN (Medium Speed), and I-CAN (Infotainment).

There are 2 gateway modules: BCM (HS-CAN <> MS-CAN) and the IPC (MS-CAN <> I-CAN).

The service manual is very clear that the IPC is used as a gateway for communication between the APIM and the HVAC.

However, I don't know exactly why it was done this way considering that the APIM is the only module in the car that is connected to all 3 buses directly.
Kabigon is offline  
    Reply With Quote