Milan FWD V6-3.0L (2010)
-
If a module fails to communicate during the network test, GO to Symptom Chart. See: Symptom Related Diagnostic Procedures
6. Retrieve and review the DTCs.
-
If the DTCs retrieved are related to the concern, go to DTC Charts. See: Diagnostic Trouble Code Descriptions/Communications Network
Follow the non-network DTC diagnostics (B-codes, C-codes, P-codes) prior to the network DTC diagnostics (U-codes). For all other DTCs,
refer to the Diagnostic Trouble Code (DTC) Chart in Body Control Systems. See: Body and Frame/Body Control Systems/Testing and
Inspection/Diagnostic Trouble Code Descriptions/Diagnostic Trouble Code (DTC) Chart
-
If no DTCs related to the concern are retrieved, GO to Symptom Chart. See: Symptom Related Diagnostic Procedures
Principles Of Operation
Communications Network
Principles of Operation
Both the High Speed Controller Area Network (HS-CAN) and the Medium Speed Controller Area Network (MS-CAN) use an unshielded twisted-pair
cable of data (+) and data (-) circuits. The HS-CAN operates at a maximum data transfer speed of 500 Kbps and is designed for applications in which
modules must respond as rapidly as required by the driver or needed by the process being controlled. The MS-CAN operates at a maximum data transfer
speed of 125 Kbps for bus messages and is designed for general information transfer.
High Speed Controller Area Network (HS-CAN) Modules
The following modules are on the HS-CAN:
-
4X4 control module (if equipped)
-
ABS module
-
Accessory Protocol Interface Module (APIM) (if equipped)
-
Air Conditioning Compressor Module (ACCM) (Hybrid only)
-
Battery Energy Control Module (BECM) (Hybrid only)
-
DC to DC Converter Control Module (DC/DC) (Hybrid only)
-
Headlamp Control Module (HCM) (if equipped)
-
Instrument Panel Cluster (IPC) (gateway module)
-
Occupant Classification System Module (OCSM)
-
PCM
-
Power Steering Control Module (PSCM) (if equipped)
-
Restraints Control Module (RCM)
-
Transmission Control Module (TCM) (if equipped)
Medium Speed Controller Area Network (MS-CAN) Modules
The following modules are on the MS-CAN:
-
Accessory Protocol Interface Module (APIM) (if equipped)
-
Audio Control Module (ACM)
-
Audio Digital Signal Processing (DSP) module (if equipped)
-
Driver Door Module (DDM) (if equipped)
-
Driver Seat Module (DSM) (if equipped)
-
Dual Climate Controlled Seat Module (DCSM) (if equipped)
-
Front Controls Interface Module (FCIM)
-
Front Display Interface Module (FDIM)
-
Global Positioning System Module (GPSM) (if equipped)
-
HVAC module (if equipped)
-
Interior Lighting Control Module (ILCM) (if equipped)
-
Instrument Panel Cluster (IPC) (gateway module)
-
Parking Aid Module (PAM) (if equipped)
-
Smart Junction Box (SJB)
-
Side Obstacle Detection Control Module - Left (SOD-L) (if equipped)
-
Side Obstacle Detection Control Module - Right (SOD-R) (if equipped)
Controller Area Network (CAN) Fault Tolerance
NOTE: The oscilloscope traces below are from the IDS oscilloscope taken using the IDS pre-configured CAN settings. The traces are for both data (+)
and data (-) taken simultaneously (2-channel) at a sample rate of 1 mega-sample per second (1MS/s) or greater.
