GMC Yukon XL 2015 Owner's Manual page 336

Item Usage
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 Spare/Spare
84 Run/Crank Relay
87 Engine
88 Injector A Odd
89 Injector B Even
90 Oxygen Sensor B
Item Usage
91 Throttle Control
92 Engine Control
Module Relay
93 Horn
94 Fog Lamps
95 High-Beam
Headlamps
100 Oxygen Sensor A
101 Engine Control
Module
102 Engine Control
Module/
Transmission
Control Module
103 Auxiliary Interior
Heater
Vehicle Care
Item Usage
104 Starter
107 Aero Shutter
109 Police Upfitter
112 Starter Relay
114 Front Windshield
Washer
115 Rear Window
Washer
116 Cooling Fan Left
121 Right HID
Headlamp
122 Left HID Headlamp
123 Cooling Fan Right
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