Aim K-M-P - GCU2 User manual

AiM InfoTech
K-M-P - GCU2
Release 1.00

1
1
Software configuration
This document explains how to connect third party CAN expansion modules to AiM devices CAN2 bus.
The driver here documented allows to read data from a K-M-P GCU-2 module programmed with
default settings on the calibration software K-M-P GCU-2 interface. To correctly communicate with the
AiM device, it is necessary to check if the module is set with the following default parameters. Refer to
the manufacturer for additional details on the configuration procedure.
Baudrate: 1Mbit/s (1000kbit/s)
CAN ID 1: 2000 (0x7D0)
CAN ID 2: 2001 (0x7D1)
CAN ID 3: 2002 (0x7D2)
CAN ID 4: 2003 (0x7D3)
CAN ID 5: 2004 (0x7D4)
Please note: In case this module is going to be used with different parameters, the user can set up a
custom driver from the CAN Protocols section of the AiM configuration software Race Studio 3. Check
the dedicated manual from the AiM website www.aim-sportline.com, Documentation –
Firmware/Software area.

2
2
Wiring connection
These modules feature a bus communication protocol based on CAN, this data stream is accessible
through a 2-way DTM06-2S-E007 connector (right picture below) located on the universal loom or
through the main 37-way connector of the GCU-2. In this case the mating part AS614-35SN is pictured
below (left), and the connection table for both options follows.
35-pin Deutsch
Pin nr
2-pin Deutsch
Pin nr
Function
AiM wire label
(optional harness)
10
1
CAN High
CAN2 +
11
2
CAN Low
CAN2 –

3
3
AiM device configuration
Before connecting the kit to the AiM device set this up using AiM Race Studio software. The
parameters to select in the device configuration are:
•ECU manufacturer: KMP
•ECU Model: GCU2 (Only RS3 – CAN2 Stream)
If there is only the AiM device connected to this module, enable the CAN Bus 120 Ohm Resistor.
4
“KMP – GCU2” protocol
Channels received by AiM loggers configured with “KMP - GCU2” protocol are:
CHANNEL NAME FUNCTION
GEAR POT Gear potentiometer voltage
SYS PRESSURE System pressure
COMP TEMP Compressor temperature
ERROR CODE CNT Error code counter
ERR CODES Error code
UP Upshift valve
DOWN Downshift valve
BLIP Blip valve
IGN CUT Engine cut active
COMPRESSOR Compressor active

4
VP SWITCH Paddle switch
EMERG SW Emergency switch active
VC GEAR Gear number
VC RPM RPM
RPM Vx Downshift RPM
TPS Throttle position
NEUTRAL Neutral switch active
SHIFT STATUS Shift status
AUTOCALIB ST Autocalibrationstatus
CLUTCH FLAG Clutch active
CLUTCH PRESS Clutch pressure
AUTOSHIFT FLAG Autoshift flag
SHIFT LIGHT Shift light active
VEH SPEED Vehicle speed
CALC GEAR RATIO Calculated gear ratio
SHF CHK FLAG Shift check flag
REVERSE Reverse switch active
BLIP LEV Blip level (variable blip)
CAN OK CAN-bus ok check
DEBUG MODE Debug mode active