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Home >> Ford >> 2021 >> Expedition Limited, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1088 (Module Communications Network - Description And Operation) >> Description And Operation >> Controller Area Network (CAN) Module Communications Network - System Operation and Component Description >> System Diagram
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System Diagram

WARNING: This page is about a different car, the 2021 Lincoln Nautilus. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: For vehicles equipped with pre-collision assist, the CCM does not communicate directly on the HS-CAN2. The CCM communicates with the IPMA on a private CAN, and the IPMA communicates on the HS-CAN2. For description and diagnostic information, refer to CRUISE CONTROL - VEHICLES WITH: ADAPTIVE CRUISE CONTROL WITH LANE CENTERING
G00606001Courtesy of FORD MOTOR COMPANY

Module Network Chart 

Module Name Network Type Terminating Module
APIM HS-CAN3 No
ABS module HS-CAN2 No
ACM HS-CAN3 No
DSP (if equipped) HS-CAN3 No
AWD module (if equipped) HS-CAN1 No
BCM HS-CAN1 No
DACMC (integrated with ACM) (if equipped) HS-CAN3 No
DCDC (VQM) (if equipped) HS-CAN1 No
DDM MS-CAN No
DSM MS-CAN No
FCIMB HS-CAN3 No
GWM HS-CAN1 Yes
HS-CAN2 Yes
HS-CAN3 Yes
HS-CAN4 Yes
MS-CAN Yes
GSM HS-CAN2 No
HCM (if equipped) HS-CAN2 No
HVAC module MS-CAN Yes
HSWM (if equipped) MS-CAN No
IPC HS-CAN3 Yes
IPMA (if equipped) HS-CAN2 No
IPMB (if equipped) HS-CAN2 No
OCS module HS-CAN2 No
PAM HS-CAN1 No
PSCM HS-CAN2 No
PCM HS-CAN1 Yes
PDM MS-CAN No
RTM MS-CAN No
RFA module HS-CAN4 No
RGTM MS-CAN No
RCM HS-CAN2 No
SODL (if equipped) MS-CAN No
SODR (if equipped) MS-CAN No
SCMB (if equipped) MS-CAN No
SCME MS-CAN No
SCMG (if equipped) MS-CAN No
SCMH (if equipped) MS-CAN No
SCCM HS-CAN2 Yes
TCU HS-CAN4 Yes
TRM (if equipped) MS-CAN No
VDM (if equipped) HS-CAN2 No
WACM (if equipped) HS-CAN3 No