Isuzu N-Series. Service manual — part 652
6E-30 Engine Control System (4HK1)
Vehicle Speed Sensor (VSS)
Legend
1. Vehicle Speed Sensor (VSS)
Engine Control Module (ECM) Connector End Views
N6A6578E
1
N6A3797E
5
6
25
44
63
7
26
45
64
8
27
46
65
9
28
47
66
10
29
48
67
11
30
49
68
12
31
50
69
13
32
51
70
14
33
52
71
15
34
53
72
16
35
54
73
17
36
55
74
18
37
56
75
19
38
57
76
20
39
58
77
21
40
59
78
22
41
60
79
23
42
61
80
24
43
62
81
4
1
3
2
Engine Control System (4HK1) 6E-31
Connector No.
J-191
Connector Color
Black
Test Adapter No.
J-35616-4A (Pin 1 – 5)
J-35616-64A (Pin 6 – 81)
Pin
Wire Color
Pin Function
1
BLK
ECM Power Ground
2
RED
ECM Main Relay Voltage
3
BLK
ECM Power Ground
4
BLK
ECM Power Ground
5
RED
ECM Main Relay Voltage
6
BLU/RED
MIL Control
7
BLU/PNK
Exhaust Brake Lamp Control
8
LT GRN
Engine Speed Signal Output to
Tachometer
9
—
Not Used
10
BLK/RED
Glow Plug Relay Control
11
ORN/BLU
Glow Indicator Lamp Control
12
—
Not Used
13
—
Not Used
14
WHT/BLU
Starter Cut Relay Control
15
BLK
Exhaust Brake Solenoid Valve
Control
16
—
Not Used
17
—
Not Used
18
BLU/WHT
CAN High Signal
19
YEL/GRN
VSS Signal
20
BLK
APP Sensor 1 Shield Ground
21
BLU/BLK
ECM Main Relay Control
22
—
Not Used
23
—
Not Used
24
YEL/BLK
Ignition ON Switch Input Signal
25
—
Not Used
26
—
Not Used
27
—
Not Used
28
—
Not Used
29
—
Not Used
30
—
Not Used
31
—
Not Used
32
—
Not Used
33
PNK
Refrigerator Switch Input Signal
34
GRN/ORN
A/C Input Signal
35
—
Not Used
36
—
Not Used
37
BLU
CAN Low Signal
38
LT BLU
Keyword 2000 Serial Data
39
BLK
APP Sensor 2 Shield Ground
40
BLU/BLK
ECM Main Relay Control
41
PNK/BLK
APP Sensor 1, Idle Up Sensor &
PTO Throttle Sensor Low
Reference
42
RED
APP Sensor 1, Idle Up Sensor &
PTO Throttle Sensor 5 Volts
Reference
43
BLK
ECM Signal Ground
44
BLU/ORN
PTO Mode Switch Input Signal
45
LT GRN/RED
Exhaust Brake Switch Input
Signal
46
RED/WHT
Start Switch Input Signal
47
BRN/YEL
Clutch Switch Input Signal (M/T
Only)
48
WHT/BLK
Park Brake Switch Input Signal
49
—
Not Used
50
BLK/BLU
Neutral Switch Input Signal
51
LT GRN/BLU
Engine Warm Up Switch Input
Signal
52
YEL
Diagnostic Request Switch
53
—
Not Used
54
—
Not Used
55
—
Not Used
56
—
Not Used
57
—
Not Used
58
—
Not Used
59
—
Not Used
60
BLK
APP Sensor 2, BARO Sensor &
IAT Sensor Low Reference
61
RED
APP Sensor 2 & BARO Sensor 5
Volts Reference
62
BLK
ECM Signal Ground
63
WHT
APP Sensor 1 Signal
64
WHT
APP Sensor 2 Signal
65
—
Not Used
66
BLU/YEL
Idle Up Sensor Signal
67
—
Not Used
68
—
Not Used
Connector No.
J-191
Connector Color
Black
Test Adapter No.
J-35616-4A (Pin 1 – 5)
J-35616-64A (Pin 6 – 81)
Pin
Wire Color
Pin Function
6E-32 Engine Control System (4HK1)
69
—
Not Used
70
BRN
PTO Throttle Sensor Signal
71
BRN/GRN
BARO Sensor Signal
72
RED/GRN
IAT Sensor Signal
73
—
Not Used
74
—
Not Used
75
—
Not Used
76
—
Not Used
77
—
Not Used
78
—
Not Used
79
—
Not Used
80
—
Not Used
81
BLK
ECM Case Ground
Connector No.
E-111
Connector Color
Black
Test Adapter No.
J-35616-4A (Pin 82 – 113)
J-35616-64A (Pin 114 – 121)
Pin
Wire Color
Pin Function
82
WHT
FRP Sensor Signal
83
LT GRN/
WHT
FT Sensor Signal
84
GRN/YEL
ECT Sensor Signal
85
—
Not Used
Connector No.
J-191
Connector Color
Black
Test Adapter No.
J-35616-4A (Pin 1 – 5)
J-35616-64A (Pin 6 – 81)
Pin
Wire Color
Pin Function
113
105
97
89
112
104
96
88
111
103
95
87
110
102
94
86
109
101
93
85
108
100
92
84
107
99
91
83
106
98
90
82
121
120
115
118
116
119
114
117
N6A3798E
86
WHT/ORN
EGR Valve Position Sensor
Signal
87
GRN/BLU
FRP Sensor & EGR Valve
Position Sensor 5 Volts
Reference
88
—
Not Used
89
GRN/RED
FRP Regulator Low Side
90
WHT
FRP Sensor Signal
91
RED
Boost Pressure Sensor Signal
92
—
Not Used
93
—
Not Used
94
—
Not Used
95
WHT
Boost Pressure Sensor 5 Volts
Reference
96
—
Not Used
97
GRN/RED
FRP Regulator Low Side
98
BLU/WHT
CMP Sensor Signal
99
BLU/BLK
CMP Sensor 12 Volts Reference
100
BLK
FRP Sensor & CMP Sensor
Shield Ground
101
BRN
FRP Sensor & EGR Valve
Position Sensor Low Reference
102
LT GRN/
WHT
Intake Throttle Solenoid Valve
Control
103
ORN
EGR Valve Motor Control Low
Side
104
—
Not Used
105
WHT/RED
FRP Regulator High Control
106
ORN
CKP Sensor Low Signal
107
YEL
CKP Sensor High Signal
108
BLK
Boost Pressure Sensor & CKP
Sensor Shield Ground
109
BLK
Boost Pressure Sensor, ECT
Sensor & FT Sensor Low
Reference
110
—
Not Used
111
BLK/ORN
EGR Valve Motor Control High
Side
112
—
Not Used
113
WHT/RED
FRP Regulator High Control
114
—
Not Used
115
—
Not Used
Connector No.
E-111
Connector Color
Black
Test Adapter No.
J-35616-4A (Pin 82 – 113)
J-35616-64A (Pin 114 – 121)
Pin
Wire Color
Pin Function
Engine Control System (4HK1) 6E-33
Engine Controls Connector End Views
Accelerator Pedal Position (APP) Sensor
Barometric Pressure (BARO) Sensor
Boost Pressure Sensor
116
RED
Common 2 (Cylinder #2 & #3)
Fuel Injector Drive
117
WHT/YEL
Cylinder #4 Fuel Injector
Solenoid Control
118
BLK
Cylinder #2 Fuel Injector
Solenoid Control
119
GRN/WHT
Cylinder #1 Fuel Injector
Solenoid Control
120
BLK/BLU
Cylinder #3 Fuel Injector
Solenoid Control
121
WHT
Common 1 (Cylinder #1 & #4)
Fuel Injector Drive
Connector No.
B-280
Connector Color
Gray
Test Adapter No.
J-35616-33
Pin
Wire Color
Pin Function
1
RED
APP Sensor 2 5 Volts Reference
2
WHT
APP Sensor 2 Signal
3
BLK
APP Sensor 2 Low Reference
4
BLU
APP Sensor 1 5 Volts Reference
5
BLU/WHT
APP Sensor 1 Signal
6
BLU/RED
APP Sensor 1 Low Reference
Connector No.
E-111
Connector Color
Black
Test Adapter No.
J-35616-4A (Pin 82 – 113)
J-35616-64A (Pin 114 – 121)
Pin
Wire Color
Pin Function
N6A6451E
3
2
1
4
5
6
Connector No.
B-422
Connector Color
Gray
Test Adapter No.
J-35616-33
Pin
Wire Color
Pin Function
1
BLK
BARO Sensor Low Reference
2
BRN/GRN
BARO Sensor Signal
3
RED
BARO Sensor 5 Volts Reference
Connector No.
J-216
Connector Color
Gray
Test Adapter No.
J-35616-33
Pin
Wire Color
Pin Function
1
BLK
Boost Pressure Sensor Low
Reference
N6A6452E
1
2
3
N6A6452E
1
2
3
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