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MCM112
MCM112
MCM112
Part No: #13210

OVERVIEW

MoTeC's unique M1 technology redefines the meaning of customisation, delivering total control without compromise, while highly advanced security strategies make these ECUs ideal for both category managed and unrestricted applications.

The MCM112 is a Port Injection ECU that is custom built to suite various Mercury outboard engines.

LICENCING

At the time of purchase, an MCM112 needs to be Licensed for use with a particular Package or a Development Licence.

Packages

An M1 Package is the file that is loaded into an MCM112. An M1 Package contains the entire ECU state including the tuning data, worksheets, security and the M1 firmware. M1 Packages themselves are opened and modified in M1 Tune.

  • Targeted Packages

    • Public Packages

      These are Packages specifically developed in-house by MoTeC engineers for a particular engine or vehicle. In some cases this includes integration with vehicle control systems beyond the engine, for example, stability control and cruise control.

      For some targeted applications, the MCM112 is available in a complete Plug-In Kit which includes any additional hardware that may be required.

    • Partner Packages

      These are Packages developed by a MoTeC Partner Developer. It may be based on a Public Package with unique features added by the developer to offer a specific solution.

      MoTeC support staff will not provide assistance for these Packages, it will be provided by the Partner.

    • Category Packages

      These are Packages developed in-house by MoTeC engineers written specifically for the category, limiting the functionality to the class requirements.

Development Licence

When an MCM112 is teamed with a Development Licence, it allows users to develop unique control strategies, or make modifications to existing M1 Packages. Using M1 Build software, experienced code writers can tailor the functionality of a single ECU or create a Partner Package for ongoing sales.

SPECIFICATIONS

Inputs
  • Analogue Digital Pullup: 10
  • Analogue Current Pullup: 2
  • Analogue Digital Input: 2
  • Enhanced Digital Input: 8
  • Standby Digital Input: 3
  • Analogue Input: 17
  • Analogue Lambda Input: 1
  • Wideband Analogue Input: 4
Inputs voltage range:-18V to 18V.
Outputs
  • Low Side Output: 11
  • Power Low Side Output: 2
  • Standby Low Side Output: 3
  • Half Bridge Output: 4
  • Analogue Current Output: 2
  • Ignition Output: 4
  • Injector Output: 16
  • Use only Saturated injectors.
  • Unused injector outputs can be used for other functions like boost control solenoid operation.
  • Maximum current on outputs:

    • Low Side Injector outputs: max 3.5A, RMS 2A

    • Half Bridge outputs: Low Side 12A, High Side 9A, RMS 4A

Other
  • Sensor Ground 0V: 8
  • Sensor Power 5V: 4
  • 12V Battery Positive
  • 12V Battery Negative
Data
  • CAN Bus: 4
  • Logging Memory: 250 MB
Physical
  • Dimensions: 228 x 178.3 x 37.7 mm
  • Weight 896.3 g
  • Connector Main: 2 x 32 pin + 1 x 48 pin Molex
  • Connector Expansion: 1 x 34 pin Tyco
Ingress Protection (IP) Rating

  • The device is rated to IP67

IP rating is dependant upon the user ensuring that the connector entries are waterproof, which, as a minimum, requires all unused wire cavities on the connector to be plugged.

Electrical
  • Supply Voltage - Normal Operation: 8 V to 16V
  • Supply Voltage - Maximum: 18V
  • Typical no-load supply current: 0.19A at 13.8V supply

For a detailed description of the I/O refer to the "MCM112 Hardware Tech note".

SECURITY

The M1's advanced security system is based on public-key cryptography - the cornerstone of secure internet transactions - so it is virtually impossible to change the ECU function without authorised permission. Security is enforced by the ECU and protected by a microprocessor with integrated measures to prevent tampering.

A password feature grants different levels of access for different users, e.g. an engine tuner, a drive train tuner and a data analysis engineer. This is also suitable for Control ECU applications. Scrutineering teams can be given access to extra information and are able to lock down selected parts of the ECU, while other team members can be granted access to selected tuning parameters.

FEATURES

  • Small and light in robust aluminium enclosure
  • High performance processor
  • Robust and comprehensive security features
  • Flexible tuning software
  • Programmable trigger levels and diagnostics
  • All Low Side and Half Bridge outputs have PWM capability
  • With Logging Level 3 enabled:
    • Advanced logging features, high speed, multiple logs (with access logins)
    • Logging sets can be partitioned with access logins granting different information for different users from the same device. For example judicial (scrutineering) and team member access

UPGRADES

Logging Upgrades

There are three Logging Licence levels. The level determines the number of channels and sample rates available. Logging Level 1 Licence is diagnostic logging, which comes standard with the product, and includes a fixed log set and sample rates.

  • Logging Level 2 Licence: includes 2 log sets, up to 200 channels (including Level 1 diagnostics logging) and a maximum 200 Hz sample rate. Comes as standard with MCM112 packages.
  • Logging Level 3 Licence: includes 8 log sets, up to 2000 channels (including Level 1 diagnostics logging) and a maximum 1000 Hz sample rate.

Pro Analysis

The Pro Analysis upgrade is the professional version of MoTeC's i2 data analysis software and provides advanced mathematics, multiple overlay laps, and unlimited components, workbooks and worksheets.

SOFTWARE

Microsoft Windows™ based software:

  • M1 Tune Version 1.5.0.0424 or later: PC Tuning software used to tune fuel and ignition, and set up sensors, outputs and available functions.
  • M1 Build: PC software used to create a custom software Package with user specific functions.

WIRING AND CONNECTING

Communication (UI)

User communication with the ECU requires an Ethernet connection. A cable providing an Ethernet plug and suitable pin termination for the M1 mating connector can be purchased from MoTeC Dealers.

Inputs

Voltage range: -18V to 18V

Outputs

Maximum current on outputs:

  • Low Side Injector outputs: max 3.5 A, RMS 2 A
  • Half Bridge outputs: Low Side 12 A, High Side 9 A, RMS 4 A
Wire Gauges
  • Battery

    • Bat_Pos: all pins should be connected with AWG20, AWG18, or AWG16 wire to a switched battery supply
    • Bat_Neg: all pins should be connected with AWG20, AWG18, or AWG16 wire to a chassis ground or battery negative terminal. ‘Star’ distribution should be employed to ensure that no ECU ground currents are mixed with actuator ground currents
    • Recommended minimum supply wiring: 2x Bat_Pos, 3x Bat_Neg
    • Max supply voltage 18 V
  • Outputs

    Depending on the current draw for some outputs, a minimum wire gauge is recommended for safe operation:

    • Low Side Ignition and Low Side Injector outputs: AWG20 (ideally) and AWG22 (optional)
    • Half Bridge and Full Bridge outputs: these outputs may be used to drive low side actuators and throttle servos. Wire size should be chosen to suit the current requirements of the actuator device. For example, throttle servos should use AWG18 or AWG20 wiring
    • Half Bridge outputs provide internal recirculation circuitry, whereas all Low Side outputs do not. In applications where camshaft solenoids and other inductive devices cannot be driven from outputs with internal recirculation circuitry, external recirculation by means of a diode can be installed to prevent slow turn-off of some devices
For further wiring recommendations, contact your local Authorised MoTeC Dealer or email MoTeC support support@motec.com.au.

MCM112 PINOUT

MCM112 Connector A - BK (Black)
Pin Number Designation Full Name Function
BK_A1 OUT_LS1 Low Side Output 1
BK_A2 OUT_LS_STB1 Standby Low Side Output 1
BK_A3 OUT_LS_STB2 Standby Low Side Output 2
BK_A4 OUT_LS2 Low Side Output 2
BK_B1 OUT_INJ8 Injector Output 8
BK_B4 OUT_LS3 Low Side Output 3
BK_C1 OUT_INJ7 Injector Output 7
BK_C4 IN_DE1 Enhanced Digital Input 1
BK_D1 OUT_INJ2 Injector Output 2
BK_D3 IN_AD1 Analogue Digital Input 1
BK_D4 SEN_0V_D Sensor 0V D
BK_E1 OUT_INJ5 Injector Output 5
BK_E2 OUT_LS4 Low Side Output 4
BK_F1 OUT_INJ4 Injector Output 4
BK_F2 OUT_INJ6 Injector Output 6
BK_F3 OUT_INJ1 Injector Output 1
BK_F4 OUT_INJ3 Injector Output 3
BK_G1 OUT_LS5 Low Side Output 5
BK_G2 IN_DE2 Enhanced Digital Input 2
BK_G3 GND Ground
BK_G4 OUT_LS6 Low Side Output 6
BK_H1 OUT_IGN1 Ignition Output 1
BK_H2 OUT_IGN2 Ignition Output 2
BK_H3 OUT_IGN3 Ignition Output 3
BK_H4 OUT_IGN4 Ignition Output 4
MCM112 Connector B - BN (Brown)
Pin Number Designation Full Name Function
BN_B1 OUT_AC1_C Analogue Current Output 1.Current
BN_B2 OUT_AC1_V Analogue Current Output 1.Voltage
BN_B3 SEN_0V_E Sensor 0V E
BN_C1 IN_A1 Analogue Input 1
BN_C2 IN_A2 Analogue Input 2
BN_C3 IN_AL1 Analogue Lambda Input 1
BN_D1 IN_A3 Analogue Input 3
BN_D2 IN_ADU5 Analogue Digital Pullup 5
BN_D3 IN_A4 Analogue Input 4
BN_D4 IN_ADU2 Analogue Digital Pullup 2
BN_E1 IN_ADU4 Analogue Digital Pullup 4
BN_E2 IN_ADU3 Analogue Digital Pullup 3
BN_E3 OUT_LS7 Low Side Output 7
BN_E4 IN_DE3 Enhanced Digital Input 3
BN_F1 CAN1_LO CAN Bus 1 Low
BN_F2 CAN1_HI CAN Bus 1 High
BN_G1 CAN2_LO CAN Bus 2 Low
BN_G2 CAN2_HI CAN Bus 2 High
BN_G3 IN_DE4 Enhanced Digital Input 4
BN_H1 CAN3_LO CAN Bus 3 Low
BN_H2 CAN3_HI CAN Bus 3 High
BN_H4 IN_A5 Analogue Input 5
BN_J1 IN_A6 Analogue Input 6
BN_J2 IN_A7 Analogue Input 7
BN_J4 IN_A8 Analogue Input 8
BN_K1 IN_A9 Analogue Input 9
BN_K2 IN_A10 Analogue Input 10
BN_K3 IN_A11 Analogue Input 11
BN_K4 IN_DE5 Enhanced Digital Input 5
BN_L1 OUT_PLS2 Power Low Side Output 2
BN_L2 IN_ADU1 Analogue Digital Pullup 1
BN_L3 OUT_LS8 Low Side Output 8
BN_M4 OUT_LS_STB3 Standby Low Side Output 3
MCM112 Connector C - GY (Grey)
Pin Number Designation Full Name Function
GY_A1 IN_A12 Analogue Input 12
GY_A2 IN_AD2 Analogue Digital Input 2
GY_A3 OUT_LS9 Low Side Output 9
GY_A4 PWR_STB Standby Power
GY_B1 IN_ADU6 Analogue Digital Pullup 6
GY_B2 IN_AUC2 Analogue Current Pullup 2
GY_B3 IN_A13 Analogue Input 13
GY_B4 IN_A14 Analogue Input 14
GY_C1 IN_D_STB1 Standby Digital Input 1
GY_C2 IN_D_STB2 Standby Digital Input 2
GY_C3 IN_D_STB3 Standby Digital Input 3
GY_C4 IN_AUC1 Analogue Current Pullup 1
GY_D1 OUT_LS10 Low Side Output 10
GY_D2 IN_A15 Analogue Input 15
GY_E1 SEN_0V_A Sensor 0V A
GY_E2 SEN_0V_C Sensor 0V C
GY_E3 SEN_0V_B Sensor 0V B
GY_E4 SEN_5V_B Sensor 5V B
GY_F1 SEN_5V_A Sensor 5V A
GY_F2 SEN_5V_C Sensor 5V C
GY_F3 OUT_LS11 Low Side Output 11
GY_F4 OUT_PLS1 Power Low Side Output 1
GY_G1 GND Ground
GY_G2 GND Ground
GY_G3 PWR Power
GY_G4 PWR Power
GY_H1 OUT_HB1 Half Bridge Output 1
GY_H2 OUT_HB2 Half Bridge Output 2
GY_H3 OUT_HB3 Half Bridge Output 3
GY_H4 OUT_HB4 Half Bridge Output 4
MCM122 Connector X — Expansion
Mating Connector: Tyco Superseal 34 Position Keying 1 – MoTeC #65044
Pin Number Designation Full Name OE Pin Function
X_1 SEN_0V_F Sensor 0V F
X_2 OUT_INJ9 Injector Output 9
X_3 OUT_INJ10 Injector Output 10
X_4 OUT_INJ11 Injector Output 11
X_5 OUT_INJ12 Injector Output 12
X_6 OUT_INJ13 Injector Output 13
X_7 OUT_INJ14 Injector Output 14
X_8 OUT_INJ15 Injector Output 15
X_9 OUT_INJ16 Injector Output 16
X_10 IO_PWR Power In Out
X_11 IN_A16 Analogue Input 16
X_12 IN_A17 Analogue Input 17
X_13 IN_ADU7 Analogue Digital Pullup 7
X_14 IN_ADU8 Analogue Digital Pullup 8
X_15 IN_AW2 Wideband Analogue Input 2
X_16 IN_AW3 Wideband Analogue Input 3
X_17 IN_AW4 Wideband Analogue Input 4
X_18 IN_ADU9 Analogue Digital Pullup 9
X_19 IN_ADU10 Analogue Digital Pullup 10
X_20 SEN_0V_G Sensor 0V G
X_21 SEN_0V_H Sensor 0V H
X_22 SEN_5V_D Sensor 5V D
X_23 IN_AW1 Wideband Analogue Input 1
X_24 CAN4_HI CAN Bus 4 High
X_25 CAN 4 LO CAN Bus 4 Low
X_26 IN_DE6 Enhanced Digital Input 6
X_27 IN_DE7 Enhanced Digital Input 7
X_28 IN_DE8 Enhanced Digital Input 8
X_29 Not connected
X_30 Not connected
X_31 ETH_TX+ Ethernet Transmit+
X_32 ETH_TX- Ethernet Transmit-
X_33 ETH_RX+ Ethernet Receive+
X_34 ETH_RX- Ethernet Receive-

DIMENSIONS AND MOUNTING

Measurements in mm.

Mounting
This product provides lugs for mounting, the ECU must only be mounted using an appropriate grommets and bushings.

PRODUCT INFORMATION

Compliances

M1 ECUs are designed for use in a vehicle. As such, this product complies with the following standard:

  • Directive 2014/30/EU: Electromagnetic Compatibility; by application of UNECE Regulation No.10 (R10) Rev 6 22/04/2025

Installation

IP Rating (dust or water ingress)
This product is rated to IP67, it should be installed in a protected location where only occasional water splashing occurs and where the exposure to dust does not exceed conditions typical for vehicle installations.
Operating Temperature Range

This product is designed for an internal operating temperature range of -40 °C to 85 °C.

It should be installed in a location with sufficient air circulation and be shielded against thermal emissions from surrounding components.

Vibration Statement

This product is designed to withstand vibrations typical for normal vehicle installations.

This ECU must be installed in the same manner as the OE unit using the supplied rubber grommets and bushings.

Safety

  • For safe operation, use only undamaged.
  • Minimal force should be exerted to plug in connectors.
  • These devices may output voltages which may constitute a risk to human safety. Appropriate precautions must be taken:
    • At no time operate the device with faulty, bare or exposed wiring.
    • Adhere to the normal supply voltage limits as listed in the Specifications section.

Repair

Do not attempt to open and/or repair the device.

For repairs, contact and return the product via your local Authorised MoTeC Dealer.

Disposal

This product should be disposed of in accordance with relevant national regulations for disposal of electronic waste. It does not contain hazardous materials which might be subject to specific materials regulations.

Manufacturer Information

MoTeC Pty. Ltd.

  • 121 Merrindale Drive, Croydon South,
  • VIC 3136, Australia.
  • Phone: +61 3 9761 5050
  • Website: www.motec.com.au
  • Email: admin@motec.com.au

PURCHASING

If you are interested in purchasing this product contact an Authorised MoTeC Dealer.

DOWNLOADS

Tech Notes
Name
Version / Part
Published
Download
Name, Version / Part, Published
Name
Version / Part
Published
Download
MCM112 ECU Hardware Tech Note
13210
Jun 2025
Download
MCM112 ECU Hardware Tech Note
13210
Jun 2025
MCM112 ECU Hardware Tech Note
13210
Jun 2025
Download
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OVERVIEW

LICENCING

SPECIFICATIONS

SECURITY

FEATURES

UPGRADES

SOFTWARE

WIRING AND CONNECTING

MCM112 PINOUT

DIMENSIONS AND MOUNTING

PRODUCT INFORMATION

PURCHASING

DOWNLOADS