GMC 2008 Envoy - Manual (Page 407)

Fuses Usage
51 Driver Side Trailer Turn
52 Hazard Flashers
53 Headlamp Driver Module
54
Air Injection Reactor (AIR)
Solenoid
56 Air Injection Reactor (AIR) Pump
58
Vehicle Stability Enhancement
System (StabiliTrak
® )
59 Regulated Voltage Control
Relays Usage
37 Headlamp Wiper
38 Rear Window Wiper/Washer
39 Fog Lamps
40 Horn
Relays Usage
41 Fuel Pump
42 Windshield Washer
43 High-Beam Headlamp
44 Air Conditioning
45 Cooling Fan
46 Headlamp Driver Module
47 Starter
49 Electric Adjustable Pedal
55 Air Injection Reactor (AIR) Solenoid
57 Powertrain
Miscellaneous Usage
48 Instrument Panel Battery
5-113