Input Channels; Output Channels; Power Supply - Bosch ECU MS 25 Sport Manual

Bosch Motorsport
PIN Name
69 terminal 15
71 CAN 2 + (Diag)
72 MIL
73 Battery plus 1
75 Battery minus 3
78 aps2 signal
79 aps1 signal
80 aps1 gnd
81 Wet sw
84 fwheel_fl
86 GPU4 LS
87 FMU3 LS
89 Shield GND
90 5V sens. Supply 3
91 5V sens. Supply 1
92 aps2 supply +5V
93 Auxiliary Relay LS
94 glowplug relay LS
95 CAN 2 - (Diag)

1.4 Input Channels

Only active (0 to 5 V) exhaust gas temperature sensors are supported.
See chapter Initial Data Application [} 22] for further information and calibration ex-
amples for different sensors.

1.5 Output Channels

The MS 25 Sport has 8 injector power stages on three banks. Only solenoid valve type
common rail injectors are supported. Injector current profile must be calibrated for used
injector type (CRIN1, CRIN3, CRI2.X, ...).

1.6 Power Supply

Please ensure that you have a good ground installation. That means:
– A ground that has a solid, low resistance connection to the battery minus terminal.
– Connection should be free from dirt, grease, paint, anodizing, etc.
– Use large diameter wire.
– More metal-to-metal contact is better
Connection of the power supply
The following notations for power signals are used:
– Term 15 is a switched battery rail controlled by the Engine On-switch.
Main function
Terminal 15 (switched BAT+)
CAN Interface (Diag) - MSA-Box2 ecu interface
MIL Warning Lamp (LS)
Battery plus %
Battery minus %
Accelerator pedal position signal 2
Accelerator pedal position signal 1
Accelerator pedal position sensor 1 ground
Wet switch
Wheelspeed frequency input, front left (Hall)
General purpose output 4 (LS)
Fuel Metering Unit 3 LS
Shield ground
Sensor Supply 3
Sensor Supply 1
Accelerator pedal supply 2
Auxiliary Relay LS
Glowplug Relay LS
CAN Interface (Diag) - MSA-Box2 ecu interface
Engine Control Unit MS 25 Sport
Technical data | 1
PIN Name Signal
I_S_T15
B_D_CANH1
O_S_RL12
V_V_BAT+1
G_G_BAT-3
I_A_APP2 aps_b
I_A_APP1 aps_a
G_R_APP1
I_S_DIG06
O_T_RL13 vwheel_fl
O_T_RL08
O_T_RL01
G_G_RL13
V_V_5VSS3A
V_V_5VSS1C
V_V_5VSS1B
O_S_RL27
O_S_RL26
B_D_CANL1
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