User Manual
Table Of Contents
- CAN interface for bodywork
- Introduction
- Summary of CAN messages
- Detailed description of CAN messages
- Explanation
- CAN messages sent to the vehicle
- CAN messages sent from the vehicle
- Software identification
- Scania bodywork status message 1
- Air Supply Pressure
- Air Suspension Control 1
- Alarm Status Proprietary
- Ambient Conditions
- BAM-E
- Cab Illumination Message
- Cab Information Proprietary 1
- Cruise Control/Vehicle Speed
- Crash Occured
- Coordinator General Information
- Coordinator General Information 2
- CUV information
- Dash Display
- DLN2-Proprietary
- DLN5-Proprietary
- DLN8-Proprietary
- DM1
- EAC1-K
- EBC1
- EBC2 Wheel Speed Proprietary
- EBC4 Wheel Brake Lining Remaining Information
- EBC5
- EEC1
- EEC2
- Engine Configuration Messages
- Engine Fluid Level/Pressure 1
- Engine Hours, Revolutions
- Engine Temperature
- ERC1-RD
- ETC1 - T
- ETC1 - CV
- ETC2
- ETC7
- Fuel Consumption
- Fuel Economy
- High Resolution Vehicle Distance
- Inlet/Exhaust Conditions
- PTO information Proprietary
- Retarder Fluids
- Supply Pressure
- TCO1
- Time/Date
- Transmisson Control 1 (TC1)
- Transmission Fluids
- Transmission Proprietary/DLN5
- Transmission Proprietary 2 - T
- Transmission Proprietary 2 - AWD
- Vehicle Weight
- Vehicle Weight
- Requirements for CAN communication with the vehicle
©
Scania CV AB 2013, Sweden
CAN interface for bodywork
Requirements for CAN communication with the vehicle
11:90-01 Issue 1 en-GB 129 (139)
Requirements for CAN communication with
the vehicle
Explanation
This section lists the requirements for CAN communication with the bodywork con-
trol unit on the external CAN bus.
SAE J1939 forms the basis of the protocol. Large parts of SAE J1939 are not imple-
mented. These parts are SAE J1939-81 (Network Management), main part of SAE
J1939-73 (Diagnostics) and parts of SAE J1939-21 (Data Link Layer).
SAE J1939-81 Network Management
The address space in a Scania vehicle is static. Because of this there is no need for
the Network Management described in SAE J1939-81.
• Fixed addressing is used in accordance with Preferred addresses for Industry
group 0, Global and Industry group 1, On-highway Equipment.
• Source addresses for equipment which does not normally belong to the vehicle
follow the requirements in J1939, ISO 11992 or OBD/EOBD.
SAE J1939-73 Diagnostics
The only PGN used by Scania is DM1, Diagnostic Message 1 (PGN 00FECA). This
message is sent continuously by all control units in the vehicle to signal that commu-
nication is working correctly and is also used to send the status for displaying warn-
ing lamps. Fault codes in accordance with SAE J1939-71 are not used.