GMC 2016 Yukon XL Denali Owner's Manual page 291

290 Vehicle Care
Item Usage
5 Suspension
leveling
compressor
6 4WD transfer case
electronic control
10 Electric parking
brake
13 Interior BEC LT2
14 Rear BEC 1
17 MBS driver
21 ALC exhaust
solenoid
23 Integrated chassis
control module
24 Real time
dampening
25 Fuel pump power
module
26 Spare/Battery
regulated voltage
control
28 Upfitter 2
29 Upfitter 2 relay
Item Usage
30 Wiper
31 TIM
34 Back-up lamps
35 Antilock brake
system valve
36 Trailer brakes
37 Upfitter 3 relay
39 Trailer stop, turn
right
40 Trailer stop,
turn left
41 Trailer park lamps
42 Right parking
lamps
43 Left parking lamps
44 Upfitter 3
45 Automatic level
control run, crank
47 Upfitter 4
48 Upfitter 4 relay
49 Reverse lamps
51 Parking lamp relay
Item Usage
59 Euro trailer
60 Air conditioning
control
63 Upfitter 1
67 Trailer battery
69 RC upfitter 3 and 4
70 VBAT upfitter
3 and 4
72 Upfitter 1 relay
74 Engine control
module ignition
75 Miscellaneous
ignition spare
76 Transmission
ignition
77 RC upfitter 1 and 2
78 VBAT upfitter
1 and 2
83 Euro trailer RC
84 Run, crank relay
87 Engine
88 Injector A odd