Komatsu ecot3 PC300-8, Shop Manual

Page: 264 / 1035

SEN01998-05 10 Structure, function and maintenance standard
6
PC300, 350-8
28 NC(*) –
29 NC(*) –
30 NC(*) –
31 NC(*) D
32 NC(*) C
33 GND A
34 NC(*) –
35 NC(*) A
36 NC(*) –
37 NC(*) A
38 NC(*) C
39 Key switch (ACC) –
40 Electrical intake air heater relay drive –
41 NC(*) –
42 Electrical intake air heater relay return C
43 NC(*) –
44 Boost pressure sensor B
45 Injector #1 (+) D
46 Injector #5 (+) D
47 Sensor GND C
48 Ne sensor (–) C
49 NC(*) –
50 NC(*) –
51 Injector #2 (–) C
52 Injector #3 (–) C
53 Injector #1 (–) C
54 Injector #2 (+) D
55 Injector #3 (+) D
56 Injector #4 (+) D
57 Injector #6 (+) D
58 Injector #4 (–) C
59 Injector #6 (–) C
60 Injector #5 (–) C
*: Never connect to NC or malfunctions or failures will
occur.
CN-CE02
Pin No. Signal name
Input/
output
1 NC(*) B
2 NC(*) B
3 NC(*) B
4 NC(*) B
5 NC(*) B
6 NC(*) B
7 NC(*) B
8 NC(*) B
9 Fuel control dial (+) B
10 NC(*) B
11 NC(*) B
12 NC(*) B
*: Never connect to NC or malfunctions or failures will
occur.
CN-CE01
Pin No. Signal name
Input/
output
13 NC(*) B
14 NC(*) B
15 NC(*) B
16 NC(*) B
17 NC(*) B
18 NC(*) B
19 NC(*) B
20 NC(*) E
21 NC(*) A
22 Fuel control dial (+5V) A
23 Fuel control dial (–) C
24 NC(*) B
25 NC(*) B
26 NC(*) B
27 NC(*) B
28 NC(*) B
29 NC(*) C
30 NC(*) B
31 NC(*) B
32 NC(*) C
33 GND C
34 NC(*) C
35 NC(*) B
36 NC(*) B
37 NC(*) C
38 NC(*) D
39 Key switch (ACC) A
40 Electrical intake air heater relay drive D
41 NC(*) D
42 Electrical intake air heater relay return C
43 NC(*) D
44 NC(*) D
45 NC(*) –
46 CAN(+) E
47 CAN(–) E
48 NC(*) D
49 PWM OUTPUT D
50 NC(*) D
*: Never connect to NC or malfunctions or failures will
occur.
CN-CE03
Pin No. Signal name
Input/
output
1 GND C
2 NC(*) C
3
Electric power supply (+24V con-
stantly)
A
4 NC(*) A
*: Never connect to NC or malfunctions or failures will
occur.
CN-CE02
Pin No. Signal name
Input/
output