7-32
Electrical Component and Inline Harness Connector End Views
Usage Table (cont'd)
No.
Device
Label Name
Device
Assigned Name
Rating
Description
17
BCM 1
F17DL
10A
•
K9 Body Control Module
•
E1L Accent Lamp - Overhead Console
•
E63D Flood Lamp - Driver Door Handle (A31)
•
E63P Flood Lamp - Passenger Door Handle (A31)
•
K17 Electronic Brake Control Module
•
K20 Engine Control Module
•
K34 Glow Plug Control Module
•
K36 Inflatable Restraint Sensing and Diagnostic
Module
•
K38A Chassis Control Module - Auxiliary (JL1)
•
K44 Power Take-Off Control Module (PTO)
•
K56 Serial Data Gateway Module
•
K69 Transfer Case Control Module (NQF)
•
K71 Transmission Control Module
•
K73 Telematics Communication Interface Control
Module (UE1)
•
K74 Human Machine Interface Control Module
(IO5/IO6)
•
K77 Remote Control Door Lock Receiver
•
K89 Immobilizer Control Module
•
KR11 Windshield Washer Pump Relay
•
KR12B Windshield Wiper Relay
•
KR59 Stop Lamp Relay
•
KR73 Ignition Main Relay (X50A Fuse Block
Underhood)
•
KR73 Ignition Main Relay (X51L Fuse Block
Instrument Panel - Left)
•
KR112 Cargo Lamp Relay
•
S48A Multifunction Switch - Instrument Panel
•
S70L Steering Wheel Controls Switch - Left
•
R50 Brake Booster Diode
18
UPFTR SW 1 and
2 (B+)
F18DL
5A
•
KR161A Configurable Provision Relay 1 (9L7)
•
KR161B Configurable Provision Relay 2 (9L7)
19
UPFTR 2
F19DL
30A
•
X61A Junction Block-Instrument Panel
20
EMPTY
F20DL
—
•
Not Used
21
EMPTY
F21DL
—
•
Not Used
22
HVAC/AUX
HVAC IGN
F22DL
15A/15A
•
K33 HVAC Control Module
•
E40 Electrical Auxiliary Heater (C32)
23
IPC IGN/SDM IGN
F23DL
10A/10A
•
B99 Steering Wheel Angle Sensor
•
P14 Passenger Air Bag Disable Indicator (C99)
•
P16 Instrument Cluster
24
SPARE
F24DL
15A/15A
•
Not Used
25
DLC/DSM
F25DL
10A/10A
•
X84 Data Link Connector
26
PEPS/HVAC
F26DL
10A/10A
•
K33 HVAC Control Module
•
K56 Serial Data Gateway Module
27
SPARE
F27DL
10A
•
Not Used
28
SPARE
F28DL
10A
•
Not Used
29
SPARE
F29DL
15A
•
Not Used
30
SEO ALC
F30DL
15A
•
X61A Junction Block-Instrument Panel
2021 - Silverado 4500HD, 5500HD, and 6500HD Electrical Body Builder Manual
