Hummer H1 (2006+). Manual — part 397
12-264
Electrical System
______________________________________________________
C84/ 6 WAY CONNECTOR OIL PRESSURE JUMPER HARNESS LOCATION: ON DRIVERS SIDE TOP
OF ENGINE
C85/ 12 WAY CONNECTOR GLOW PLUG CONTROL MODULE
C9
778
DB
Shift solenoid D valve control
C10
779
GY
Shift solenoid E valve control
C11
780
WH
TCC PWM solenoid valve control
C12
781
DB
Modulated main pressure
D1
784
DB
T-case range switch input to the ECM (-)
D2
210
DG
Transfer case lock lamp activation
D3
330
PP
PRNDL switch
D4
--
--
--
D5
--
--
--
D6
1000
WH
Transmission OSS High
D7
1001
LB
Transmission OSS Low
D8
--
--
--
PIN
CKT
COLOR
DESCRIPTION
A
59
PK/YL
Glow Plug Controller Ground
B
619
TN/WH
Oil Pressure Sensor Signal To ECM
C
--
BR
Not Used
D
617
GY
Oil Pressure Sensor 5 Volt Reference
E
618
BK
Low Reference
F
--
--
--
PIN
CKT
COLOR
DESCRIPTION
1
HB11
RD/GR
Glow plug # 1 supply voltage
2
HB12
WH/GR
Glow plug # 2 supply voltage
3
HB13
RD/WH
Glow plug # 3 supply voltage
4
HB14
WH/YL
Glow plug # 4 supply voltage
5
239
PK
Ignition feed
6
212
GN
Can low
7
HB15
RD/LG
Glow plug # 5 supply voltage
PIN
CKT
COLOR
DESCRIPTION
12
6
1
7
_____________________________________________________
Electrical System 12-265
C86/ 80 WAY FICM CONNECTOR LOCATION: ON THE FUEL INJECTION CONTROL MODULE
8
HB16
WH/LG
Glow plug # 6 supply voltage
9
HB17
RD/WH
Glow plug # 7 supply voltage
10
HB18
WH/YL
Glow plug # 8 supply voltage
11
59
PK/YL
Glow plug controller ground
12
211
YL
Can high
PIN
CKT
COLOR
DESCRIPTION
1
IC18
WH/LG
Fuel injector 4 command
2
57
BK/YL
Ground G1
3
IC13
OR
Injectors 1-4-6-7 supply voltage
4
IC15
RD/LG
Fuel injector 1 command
5
1042
PK
Ignition 1 voltage
6-43
--
--
--
44
633
LB/BK
Injector 4 request
45
634
BK/WH
Injector 5 request
46
--
--
--
47
632
PK/BK
Injector 3 request
48
636
RD/BK
Injector 7 request
49-58
--
--
--
59
IC20
DB/WH
Fuel injector 6 command
60
IC520
DB/WH
Fuel injector 6 command
61
IC21
WH/RD
Fuel injector 7 command
62
IC521
WH/RD
Fuel injector 7 command
63
637
DB/BK
Fuel injector 8 request
64
635
YL/BK
Fuel injector 6 request
65
--
--
--
66
630
BK
Fuel injector 1 request
67
631
LG/BK
Fuel injector 2 request
68-81
--
--
--
PIN
CKT
COLOR
DESCRIPTION
12-266
Electrical System
______________________________________________________
C87/ 40 WAY FICM CONNECTOR LOCATION: ON THE FUEL INJECTION CONTROL MODULE
PIN
CKT
COLOR
DESCRIPTION
82-89
--
--
--
90
212
GR
SAE J1939 CAN LO
91
211
YL
SAE J1939 CAN HI
92
--
--
--
93
--
--
--
94
660
LB
Engine speed signal to the FICM
95-
113
--
--
--
114
57
BK/GR
Ground G1
115
IC17
WH/LB
Fuel injector 3 command
116
IC19
RD/LG
Fuel injector 5 command
117
--
--
--
118
IC60
RD/WH
Injectors 2-3-5-8 supply voltage
119
1042
PK
Ignition 1 voltage
120
IC22
WH/GR
Fuel injector 8 command
121
IC16
WH/YL
Fuel injector 2 command
_____________________________________________________
Electrical System 12-267
C88/ 12 WAY NEUTRAL SAFETY BACKUP SWITCH CONNECTOR LOCATION: ON SIDE OF THE
TRANS.
PIN
CKT
COLOR
DESCRIPTION
1
331
WH
Crank request
2
--
--
--
3
330
PP
PRNDL switch
4
590
YL
Transmission range switch signal B
5
591
DB
Transmission range switch signal A
6
592
GY
Transmission range switch signal C
7
594
DG
Ground
8
593
WH
Transmission range switch signal P
9
--
--
--
10
140
OR
Reverse signal
11
298
BR
Backup light switch feed
12
33
WH
neutral safety switch feed
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