Year of production: 2008
Instrument panel fuse block
The instrument panel fuse block access door is located on the driver’s side edge of the instrument panel.
Chevrolet Tahoe – wiring diagram – fuse box – instrument panel fuse block
Fuses
Usage
1
Rear Seats
2
Rear Accessory Power Outlet
3
Steering Wheel Controls Backlight
4
Driver Door Module
5
Dome Lamps, Driver’s Side Turn Signal
6
Driver’s Side Turn Signal, Stoplamp
7
Instrument Panel Back Lighting
8
Passenger’s Side Turn Signal, Stoplamp
9
Passenger Door Module, Universal Home Remote System
10
Power Door Lock 2 (Unlock Feature)
11
Power Door Lock 2 (Lock Feature)
12
Stoplamps, Center-High Mounted Stoplamp
13
Rear Climate Controls
14
Not Used
15
Body Control Module (BCM)
16
Accessory Power Outlets
17
Interior Lamps
18
Power Door Lock 1 (Unlock Feature)
19
Rear Seat Entertainment
20
Ultrasonic Rear Parking Assist, Power Liftgate
21
Power Door Lock 1 (Lock Feature)
22
Driver Information Center (DIC)
23
Rear Wiper
24
Not Used
25
Driver Seat Module, Remote Keyless Entry System
26
Not Used
Harness Connector
Usage
LT DR
Driver’s Door Harness Connection
BODY
Harness Connector
BODY
Harness Connector
Center Instrument Panel Utility Block
The center instrument panel fuse block is located underneath the instrument panel, to the left of the steering column.
Chevrolet Tahoe – wiring diagram – fuse box – center instrument panel fuse block
Harness Connector
Usage
BODY 2
Body Harness Connector 2
BODY 1
Body Harness Connector 1
BODY 3
Body Harness Connector 3
HEADLINER 3
Headliner Harness Connector 3
HEADLINER 2
Headliner Harness Connector 2
HEADLINER 1
Headliner Harness Connector 1
BRAKE CLUTCH
Brake Clutch Harness Connector
SEO/UPFITTER
Special Equipment Option Upfitter Harness Connector
Circuit Breaker
Usage
CB1
Passenger’s Side Power Window Circuit Breaker
CB2
Passenger’s Seat Circuit Breaker
CB3
Driver’s Seat Circuit Breaker
CB4
Rear Sliding Window
Underhood Fuse Block
The underhood fuse block is located in the engine compartment, on the driver’s side of the vehicle.
Chevrolet Tahoe – wiring diagram – fuse box – engine compartment
Fuses
Usage
1
Right Trailer Stop/Turn Lamp
2
Electronic Stability Suspension Control, Automatic Level Control Exhaust
3
Left Trailer Stop/Turn Lamp
4
Engine Controls
5
Engine Control Module, Throttle Control
6
Trailer Brake Controller
7
Front Washer
8
Oxygen Sensors
9
Anti-lock Brakes System 2
10
Trailer Back-up Lamps
11
Driver’s Side Low-Beam Headlamp
12
Engine Control Module (Battery)
13
Fuel Injectors, Ignition Coils (Right Side)
14
Transmission Control Module (Battery)
15
Vehicle Back-up Lamps
16
Passenger’s Side Low-Beam Headlamp
17
Air Conditioning Compressor
18
Oxygen Sensors
19
Transmission Controls (Ignition)
20
Fuel Pump
21
Fuel System Control Module
22
Headlamp Washer
23
Rear Windshield Washer
24
Fuel Injectors, Ignition Coils (Left Side)
25
Trailer Park Lamps
26
Driver’s Side Park Lamps
27
Passenger’s Side Park Lamps
28
Fog Lamps
29
Horn
30
Passenger’s Side High-Beam Headlamp
31
Daytime Running Lamps (DRL)
32
Driver’s Side High-Beam Headlamp
33
Daytime Running Lamps 2
34
Sunroof
35
Key Ignition System, Theft Deterrent System
36
Windshield Wiper
37
SEO B2 Upfitter Usage (Battery)
38
Electric Adjustable Pedals
39
Climate Controls (Battery)
40
Airbag System (Ignition)
41
Amplifier
42
Audio System
43
Miscellaneous (Ignition), Cruise Control
44
Liftgate Release
45
Airbag System (Battery)
46
Instrument Panel Cluster
47
Power Take-Off
48
Auxiliary Climate Control (Ignition), Compass-Temperature Mirror
49
Center High-Mounted Stoplamp (CHMSL)
50
Rear Defogger
51
Heated Mirrors
52
SEO B1 Upfitter Usage (Battery)
53
Cigarette Lighter, Auxiliary Power Outlet
54
Automatic Level Control Compressor Relay, SEO Upfitter Usage
55
Climate Controls (Ignition)
56
Engine Control Module, Secondary Fuel Pump (Ignition)
J-Case Fuse
Usage
60
Cooling Fan 1
61
Antilock Brake System 1
62
Starter
63
Stud 2 (Trailer Brakes)
64
Left Bussed Electrical Center 1
65
Electric Running Boards
66
Heated Windshield Washer System
67
Four-Wheel Drive System
68
Stud 1 (Trailer Connector Battery Power)
69
Mid-Bussed Electrical Center 1
70
Climate Control Blower
71
Power Liftgate Module
72
Left Bussed Electrical Center 2
Relays
Usage
FAN HI
Cooling Fan High Speed
FAN LO
Cooling Fan Low Speed
ENG EXH VLV
Not Used
FAN CNTRL
Cooling Fan Control
HDLP LO/HID
Low-Beam Headlamp
FOG LAMP
Air Conditioning Compressor
STRTR
Starter
PWR/TRN
Powertrain
FUEL PMP
Fuel Pump
PRK LAMP
Parking Lamps
REAR DEFOG
Rear Defogger
RUN/CRANK
Switched Power
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.