ECM Connectors Pinouts:
ECM
Blue
Item J1
Cavity Circuit
Size(mm)
2
7446
0.5
4
3200
0.5
5
3201
0.5
8
7447
0.5
14
1164
0.5
15
1161
0.5
24
7445
0.5
30
1271
0.5
33
1274
0.5
34
1162
0.5
36
7493A
0.5
37
7494A
0.5
39
2500
0.5
40
2501
0.5
42
C FN2C
0.5
43
C 818
0.75
44
465
0.5
46
419
0.5
51
439A
0.5
52
740
0.5
53
1272
0.5
59
2366
0.5
60
5291
0.5
64
C 20
0.5
67
5292
0.75
72
5991A
0.5
73
5290B
2.5
LT1 Control System
TITLE
ALL INFORMATION WITHIN ABOVE BORDER TO BE PRINTED EXACTLY AS SHOWN ON 8 1/2 x 11
WHITE 16 POUND BOND PAPER. PRINT ON BOTH SIDES, EXCLUDING TEMPLATES.
TO BE UNITIZED IN ACCORDANCE WITH GM SPECIFICATIONS.
Color
Circuit Description
LB/WT
Fuel Line Pressure Sensor Signal
YL/WT
Throttle Inlet Absolute Pressure Sensor Signal
WT/RD
Throttle Inlet Absolute Pressure Sensor 5V Reference
BK/YL
Fuel Line Pressure Sensor Low Reference
WT/RD
Accelerator Pedal Position 5 Volt Reference (1)
YL/WT
Accelerator Pedal Position Signal (1)
BR/RD
Fuel Line Pressure Sensor 5V Reference
BK/LB
Accelerator Pedal Position Low Reference (1)
BR/RD
Accelerator Pedal Position 5 Volt Reference (2)
LG/WT
Accelerator Pedal Position Signal (2)
LB/BK
High Speed GMLAN Serial Data (+)(3)
WT
High Speed GMLAN Serial Data (-)(3)
LB
High Speed GMLAN Serial Data (+)(1)
WT
High Speed GMLAN Serial Data (-)(1)
BL/RD
Fan2 Control
BN
Vehicle Speed Output
LG/GY
Fuel Pump Primary Relay Control
BR/WT
Check Engine Indicator Control
VT/LG
Run/Crank Ignition 1 Voltage
RD/YL
Battery
BK/VT
Accelerator Pedal Position Low Reference (2)
WT/BK
Cooling Fan Control Relay Speed Signal
VT/LB
Powertrain Main Relay Fused Supply (2)
YE
Top of Travel Clutch Switch
VT/LB
Powertrain Main Relay Fused Supply (3)
YL
Powertrain Relay Coil Control
VT/LB
Powertrain Main Relay Fused Supply (1)
REV 02JN16
DATE
02JN16
19303139
PART NO.
REVISION
Previous Revisions are Archived
Revision - Blake Nye
10
39
SHEET
OF
AUTH
N/A