7-46
Electrical Component and Inline Harness Connector End Views
X51R Fuse Block - Instrument Panel Right X1
Pin
Size
Color
Circuit
Function
Terminal
Type ID
Option
1
0.75
1.5
GY
GY
295
295
Door Lock Actuator Lock Control
Door Lock Actuator Lock Control
I
V
—
—
2
1.5
WH/D-BU
3266
Child Security Lock Motor Lock Control
V
—
3
0.35
VT/YE
3267
Child Security Lock Relay Control
I
—
4
1.5
GY/L-GN
3271
Door Lock Control 2
V
—
5
—
—
—
Not Occupied
—
—
6
0.35
GY/VT
755
Retained Accessory Power Relay Coil Control
I
—
7 - 11
—
—
—
Not Occupied
—
—
12
0.75
RD/D-BU
4540
Secondary Fused Battery Positive Voltage 45
I
—
13
0.75
RD/VT
2640
Secondary Fused Battery Positive Voltage 26
I
—
14
—
—
—
Not Occupied
—
—
15
0.5
VT/GY
709
Left Park Lamp Control
I
—
16
0.5
RD/L-GN
4440
Secondary Fused Battery Positive Voltage 44
I
—
17
—
—
—
Not Occupied
—
—
18
1.5
VT/YE
143
Accessory Voltage 1
II
—
19
2.5
RD/WH
1340
Secondary Fused Battery Positive Voltage 13
II
—
20
2.5
RD/WH
1340
Secondary Fused Battery Positive Voltage 13
II
—
21
6
RD/L-GN
242
Primary Fused Battery Positive Voltage 2
IV
—
22
4
RD/VT
542
Primary Fused Battery Positive Voltage 5
IV
—
23
—
—
—
Not Occupied
—
—
24
6
RD/GY
142
Primary Fused Battery Positive Voltage 1
IV
—
25 - 26
—
—
—
Not Occupied
—
—
27
0.75
RD/VT
340
Secondary Fused Battery Positive Voltage 3
III
—
28
—
—
—
Not Occupied
—
—
29
1.5
D-BU/WH
195
Door Lock Control
V
—
30
1.5
BN
5910
Door Dead Lock Actuator Lock Control
V
—
31 - 32
—
—
—
Not Occupied
—
—
33
0.75
RD/WH
3440
Secondary Fused Battery Positive Voltage 34
I
—
34
0.75
RD/L-GN
5140
Secondary Fused Battery Positive Voltage 51
I
—
35 - 37
—
—
—
Not Occupied
—
—
38
2.5
RD/BN
1440
Secondary Fused Battery Positive Voltage 14
II
—
39
—
—
—
Not Occupied
—
—
40
0.75
GY
5911
Door Lock Actuator Lock Control 2
I
—
41
0.35
D-BU/BN
7547
Dead Lock Relay Control
I
—
42 - 44
—
—
—
Not Occupied
—
—
2021 - Silverado 4500HD, 5500HD, and 6500HD Electrical Body Builder Manual