7-8
Electrical Component and Inline Harness Connector End Views
Usage Table (cont'd)
No.
Device
Label Name
Device
Assigned Name
Rating
Description
Note: Relays listed below are non-serviceable Printed Circuit Board (PCB) relays and are internal to the block.
—
—
KR12B Windshield
Wiper Relay
—
•
KR12C Windshield Wiper Speed Control Relay
—
—
KR12C Windshield
Wiper Speed
Control Relay
—
•
M75 Windshield Wiper Motor
—
—
KR3 Horn Relay
—
•
F27UA
—
—
KR40 Backup
Lamp Relay
—
•
F54UA
•
F55UA
—
—
KR46 Front Fog
Lamp Relay
—
•
F8UA
—
—
KR48 Headlamp
High Beam Relay
—
•
F1UA
•
F2UA
—
—
KR59 Stop Lamp
Relay
—
•
F53UA
—
—
KR63L Trailer
Stop/Turn Signal
Lamp Relay - Left
—
•
F73UA
—
—
KR63R Trailer
Stop/Turn Signal
Lamp Relay - Right
—
•
F81UA
—
—
KR68R Turn Signal
Lamps Relay -
Right
—
•
F26UA
—
—
KR150 Relay -
Spare
—
•
Not Used
—
—
KR182L Stop/Turn
Signal Lamp Relay
- Left
—
•
F13UA
—
—
KR182R Stop/Turn
Signal Lamp Relay
- Right
—
•
F14UA
Test Points
TP1
CKT 95
TP1
—
•
KR12C Windshield Wiper Speed Control Relay
TP2
CKT 92
TP2
—
•
KR12C Windshield Wiper Speed Control Relay
2021 - Silverado 4500HD, 5500HD, and 6500HD Electrical Body Builder Manual
