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MDC2
Mitsubishi Diff Controller
User Manual
© Copyright – MoTeC Pty Ltd – 2001-2009
The information in this document is subject to change without notice.
While every effort is taken to ensure correctness, no responsibility will be taken for the consequences of any inaccuracies or omissions in this manual.
23 June, 2009
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Table of Contents
Related Manuals for Motec MDC2
Summary of Contents for Motec MDC2
- Page 1 Mitsubishi Diff Controller User Manual © Copyright – MoTeC Pty Ltd – 2001-2009 The information in this document is subject to change without notice. While every effort is taken to ensure correctness, no responsibility will be taken for the consequences of any inaccuracies or omissions in this manual.
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Page 2: Table Of Contents
MDC2 Installation .............. 12 Appendices ............... 13 Appendix A – Fault Codes ................13 Appendix B – MDC2 Pinout and Links .............. 14 MDC2 Connector Pinout ............... 14 Appendix C – CAN Wiring Practices ..............15 ... -
Page 3: Introduction
Introduction Introduction The MoTeC Mitsubishi Diff Controller 2 (MDC2) is a direct replacement for the Active Centre Diff (ACD) controller in the Mitsubishi EVO X. The MDC2 also supports centre diff control on Active Yaw Control (AYC) equipped vehicles however the yaw control hardware is not used. -
Page 4: Mdc2 Functionality
ACD toggle switch on the steering wheel. The current mode is indicated in the top line of the dash centre display. Optionally, three mode lights (SNOW, TARMAC and GRAVEL) can be wired directly to the MDC2 if the dash display is removed. Control Mode... -
Page 5: Slip Control
The four wheel speeds are received on the CAN bus from the ABS module, or the four wheel speed sensors can optionally be wired directly to the MDC2. If the ABS module is removed, the sensors must be directly connected... -
Page 6: Speed Calculations
MoTeC MDC2 Functionality When wired directly to the MDC2, the wheel speed inputs can be configured as hall effect or magnetic sensors with adjustable thresholds, and individual sensors can be enabled or disabled. Magnetic sensor input thresholds are individually configurable for front and rear sensor pairs according to the current front and rear speeds. -
Page 7: Hydraulic Pressure Pump Control
To exit the pump priming mode, the ignition should be turned off. NOTE: The pump prime mode should be used with care by experienced technicians only. The MDC2 does NOT restrict pump run time or hydraulic pressure during pump prime mode. -
Page 8: Yaw/G Sensor Can Bus
MoTeC UTC (USB To CAN) adaptor or the MoTeC CAN cable. An adaptor cable is provided with the MDC2 to provide access to the CAN bus. This cable also provides the power required if the MoTeC CAN cable is used to interface with a PC. -
Page 9: Miscellaneous Functions
MoTeC MDC2 Functionality Miscellaneous functions Fault indication Faults are indicated by flashing the following message on the dash centre display. This display will continue to flash until there have been no faults present for 2 seconds. Fault codes and diagnostic codes are included in the CAN diagnostic messages, as described in Appendix A –... -
Page 10: Mdc2 Manager
MoTeC MDC2 Setup MDC2 Manager The MDC2 Manager software is necessary to configure an MDC2 unit from a PC. A new MDC2 unit must be configured before its initial use. Computer requirements The MDC2 Manager software runs under Windows 95, 98, ME, NT4, 2000 or XP operating systems. The minimum recommended PC specification is a Pentium 90 with 16MB RAM and a parallel port or USB port. -
Page 11: File | Setup | Input Setup
The Acceleration and Braking tables specify %lock in 0.5% units. The Desired Slip table specifies desired slip in 0.1 km/h units. For more information on the diff control strategy, see the MDC2 Functionality section. Editing Tables Cell values in the tables may be incremented/decremented using the Page Up/Page Down keys, or entered directly. -
Page 12: File | Setup | Input Tables
(0%in) and the TP High voltage (100%in). The Read buttons for the throttle sensor high and low voltages can be used to calibrate the sensor if the MDC2 is powered and connected to the PC. To calibrate, press the TP High Read button with the throttle pedal fully depressed, then press the TP Low Read button with the throttle pedal fully released. -
Page 13: File | Setup | User Modes
Monitor Channels window. Sending Firmware The MDC2 firmware is user upgradeable from a PC connected to the MDC2 CAN bus with the MoTeC UTC (USB To CAN) or the MoTeC CAN cable. To upgrade the firmware the MDC2 must be powered and connected to a PC with the MDC2 Manager software... -
Page 14: Mdc2 Installation
The MDC2 is fitted in pace of the factory AYC / ACD ECU underneath the dashboard. To install the MDC2, remove the entire factory AYC / ACD ECU bracket and unclip the plastic case from the bracket. The MDC2 can be attached to the bracket with double sided tape or Velcro™ before the bracket is... -
Page 15: Appendices
Appendices Appendices Appendix A – Fault Codes The MDC2 fault flags included in the CAN diagnostics are sent as a bit field (16 bit) with the following faults: Bit 0 (0x0001 = 1) Bad Configuration (CRC failure) Bit 1 (0x0002 = 2) -
Page 16: Appendix B - Mdc2 Pinout And Links
MDC2 Connector Pinout 31 32 33 The 26 pin MDC2 connector connects to the factory wiring loom. The 22 pin MDC2 connector offers inputs and outputs for custom wiring such as direct wheel speed inputs. Function Notes ACD valve output... -
Page 17: Appendix C - Can Wiring Practices
The maximum length of the bus is 16m (50ft) including the MoTeC CAN Cable (PC to CAN Bus Communications Cable) CAN Devices (such as MoTeC ADL, M800 etc) may be connected to the trunk with up to 500mm (20in) of twisted wire. -
Page 18: Appendix D - Ecu Communications
The MDC2 communicates with the factory ECU or a MoTeC M800 ECU using the main CAN bus. When used in conjunction with an M800 ECU the MDC2 controls the thermo fan, the tacho and the dash temperature gauge based on data received from the M800. -
Page 19: Appendix E - Can Messages
MoTeC MDC2 Appendices Appendix E – CAN Messages The MDC2 communicates on the main CAN bus running at 500kbit/s. MDC2 operational data messages are each transmitted at 50Hz. MDC2 diagnostic messages are each transmitted at 25Hz. 50Hz Messages CAN ID 0x1F4... -
Page 20: 25Hz Messages
Bits Data Compound Id = 0 4..7 Reserved 0..4 Aux 5V Output Voltage (0.01V resolution) Battery Voltage (0.01V resolution) MDC2 Internal temperature (1°C resolution with +50°C offset) CAN ID 0x1F5 Byte Bits Data Compound Id = 1 4..7 0..4 Speed sensor noise fault flags...
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