Mercury 849849 AXX 849849 Axx_New+FCR12 ECUs 1 "a"

$125.00

Mercury 849849 AXX 849849 Axx_New+FCR12 ECUs

$125.00
0 LEFT IN STOCK

AiM Mercury 849849 AXX_New+FC12 ECUs

Mercury 849849 ECUs feature a serial communication protocol. To connect AiM device to these ECU a
dedicated AiM interface cable is needed. This cable part number is: X50EN849849. Here below it is
shown.

Mercury 849849 ECUs are equipped with a 4 pins AMP female connector that must be connected to
AiM interface male one shown here below.

Mercury 849849 AXX interface cable has four flying leads you can connect to AiM devices.
Please refer to your device pinout to know the pins to be used. Here below you find wiring diagram and connection scheme

Cable Function AiM cable colour AiM device
RS232RX White RS232RX/ECU RS232TX
RS232TX Blue RS232TX/ECU RS232RX
+12V Red +12V
GND Black GND

Please note:
AiM wiring harnesses supplied after September 2018 have the following labels:
ECU RS232TX (white) to be connected to ECU TX pin
ECU RS232RX (blue) to be connected to ECU RX pin (if indicated in the connection table above)
AiM wiring harnesses supplied before September 2018 have the following labels:
RS232RX (white) to be connected to ECU TX pin
RS232TX (blue) to be connected to ECU RX pin (if indicated in the connection table above)

Race Studio configuration

Before connecting AiM devices to the ECU, set all functions using AiM software Race Studio. The
parameters to set in the device configuration are:
• ECU manufacturer Mercury
• ECU Model according to your ECU version or to its firmware version: 849849_Axx
849849_Axx_New FCR12

Available Channels

Channels received by AiM devices connected to “Mercury – 849849_Axx”, “849849_Axx_New” or
“FCR12” protocol are the same and here below they are listed:

CHANNEL NAME FUNCTION
MER_RPM RPM
MER_TAIR Intake air temperature
MER_TENG Engine temperature
MER_MAP Manifold air pressure
MER_INJT Injection time
MER_ECU_TRIM ECU Trim
MER_FUEL_GRP1 Injection volume for injectors group 1
MER_FUEL_GRP2 Injection volume for injectors group 2
MER_FUEL_GRP3 Injection volume for injectors group 3
MER_FUEL_A Number after air temperature compensation
MER_FUEL_B Number after engine compensation
MER_FUEL_C Number after dynamic acceleration compensation
MER_FUEL_D Number after cold piston compensation
MER_FUEL_T Fuel temperature
MER_ECU_TEMP ECU Temperature
MER_ONTIMECONS Real time consumption
MER_ECU_BATT Battery supply

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