DANA SPICER TM4 SUMO HP HV Powertrain, Troubleshooting Manual

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11
General Information
Component Description
Communication connector
An interface harness is used between the MCU and
the VMU/ECU. The communication harness that is
connected to the MCU contains all required signals to
interface the MCU with the VMU/ECU, including the
enable signal, the CAN ports and the CAN signals
.
VMU/ECU interface harness connector
The communication connector has 23 pins with the
following specification:
VMU/ECU interface harness
– Plug pinout specifications 1-776228-1
PIN Signal Name Types AWG Description
1 Ignition Input 20-16 Enable signal to the Motor Control Unit.
2 CAN2L Communication 20-16 Low level of differential signal CAN2.
3 CAN SHIELD Ground/Shield 20-16 Typical CAN shield.
4 PWM1_OUT Low side output 20-16 Generic Low side Output 1A, can be used as PWM.
5 ANALOG1 Input 20-16 -
6 DIGITAL INPUT 1 Input 20-16 -
7 HS_OUT High side Output 20-16 Generic high side output 200mA.
8 Vaux+ Power 20-16 Positive power wire of the MCU. Must be connected to the
auxiliary battery using fuse type.
9 CAN1L Communication 20-16 Low level of differential signal CAN1.
10 CAN2H Communication 20-16 High level of differential signal CAN2.
11 5V SENSOR Analog supply 20-16 -
12 PWM2_OUT Low side output 20-16 Generic Low side Output 1A, can be used as PWM.
13 ANALOG3 Input 20-16 -
14 DIGITAL INPUT 3 Input 20-16 -
15 Vaux+ Power 20-16 Positive power wire of the MCU. Must be connected to the
auxiliary battery using fuse type.
16 CAN1H Communication 20-16 High level of differential signal CAN1.
17 GND_SENSORS Ground 20-16 -
18 HVIL_IN HVIL IN 20-16 Hazardous voltage interlock loop (200mA max).
19 HVIL_OUT HVIL OUT 20-16 Hazardous voltage interlock loop (200mA max).
20 ANALOG2 Input 20-16 -
21 DIGITAL INPUT 2 Input 20-16 -
22 Vaux- Reference 20-16 Must be connected to the vehicle chassis (frame/auxiliary
battery -).
23 Vaux- Reference 20-16 Must be connected to the vehicle chassis (frame/auxiliary
battery -).