Komatsu ecot3 PC300LC-8 Shop Manual page 263

10 Structure, function and maintenance standard
Engine controller
q Meanings of signal classes in the terminal
table shown below are as follows.
A: Power Supply
B: Input
C: Ground/Shield/Return
D: Output
E: Communication
CN-CE01
Pin No. Signal name
1 Electric power supply for fuel feed pump
2 Electric power supply for IMA
3 Atmosphere sensor
4 NC(*)
5 NC(*)
6 CAN(–)
7 NC(*)
8 CAN(+)
9 NC(*)
10 NC(*)
*: Never connect to NC or malfunctions or failures will
occur.
PC300, 350-8
CN-CE01
Pin No.
11 Fuel feed pump return
12 NC(*)
13 NC(*)
14 WATER-IN-FUEL sensor
15 Coolant temperature sensor
16 5V electric power supply for sensor
Input/
17 Oil pressure switch
output
18 NC(*)
D
19 NC(*)
D
20 NC(*)
B
21 NC(*)
–
22 NC(*)
–
23 Boost temperature sensor
E
24 NC(*)
–
25 Common rail pressure sensor
E
26 Buckup sensor
–
27 NE sensor (+)
–
*: Never connect to NC or malfunctions or failures will
occur.
SEN01998-05
Signal name
Input/
output
C
–
B
B
B
A
B
–
–
–
–
D
B
–
B
B
B
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