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Electrical Component and Inline Harness Connector End Views
7-57
X61A Junction Block - Instrument Panel X4 (cont'd)
Pin
Size
Color
Circuit
Function
Terminal
Type ID
Option
44
0.75
BK
2550
Ground 25
II
—
45
0.35
BK
2550
Ground 25
II
—
46
0.75
BK
2550
Ground 25
IV
—
47
0.35
BK
2550
Ground 25
II
—
48
0.75
BK
2550
Ground 25
IV
—
49
—
—
—
Not Occupied
—
—
50
0.75
BK
2550
Ground 25
IV
—
X61A Junction Block - Instrument Panel X5
3240128
Connector Part Information
Harness Type: Instrument Panel
OEM Connector: 33115110
Service Connector: 19329465
Description: 50-Way F 1.5, 2.8 OCS Series (NA)
Terminal Part Information
Terminal
Type ID
Terminated
Lead
Diagnostic
Test Probe
Terminal
Removal Tool
Service Terminal
Tray
Name
Core
Crimp
Insulation
Crimp
I
19300649
J-35616-
4A (PU)
J-38125-215A
Not Available
Not
Required
Not
Required
Not
Required
II
19301751
J-35616-
2A (GY)
J-38125-215A
Not Available
Not
Required
Not
Required
Not
Required
III
19301761
J-35616-
4A (PU)
J-38125-215A
Not Available
Not
Required
Not
Required
Not
Required
X61A Junction Block - Instrument Panel X5
Pin
Size
Color
Circuit
Function
Terminal
Type ID
Option
1
0.5
WH
6106
High Speed GMLAN Serial Data [-] 2
I
—
2
0.5
D-BU/YE
6105
High Speed GMLAN Serial Data [+] 2
II
—
3
0.5
D-BU/YE
6105
High Speed GMLAN Serial Data [+] 2
I
—
4
0.75
WH/VT
1430
Exterior Courtesy Lamp Control
II
—
5
—
—
—
Not Occupied
—
—
2021 - Silverado 4500HD, 5500HD, and 6500HD Electrical Body Builder Manual