Hyundai Yanmar TNV Series Manual page 37

CONTROL SYSTEM
I/O Type Pin function/name
Power Output Sensor 5V
supply
Sensor GND
Sensor 12V
Input Power supply 12V
Power supply GND
Power GND
Misc. Misc. Boot mode
-
Notes:
• The function of each pin is described later. Do not use the pins for other purposes than intended.
• Yanmar will not disclose nor customize the serial communication protocol.
• When the CAN bus is not used, jumper E30 to E39 to activate the CAN terminator resistor. (This is
required for connection of a service tool).
When the CAN bus is used, configure the bus according to the customer's CAN bus system.
• The intake air temperature, EGR temperature, FO temperature and reserved analog (atmospheric
pressure sensor) pins are not used and require no wiring.
2-18
Table 2-3 E-ECU I/O description
Symbol No.
AVCC E38
GND-A E28
AVB E43
VB E48
GND E45
GND-P E47
BOOTSW E29
- E46
Description
Voltage: Vcc±0.02 V (Vcc = 5.0±0.1V)
Output: 25 mA Max.
Voltage: Internally coupled to VB
Protected against dump surge
Connected to main relay
Connected to battery negative terminal
Disabled
TNV Application Manual