Year of production: 2015, 2016
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
Electric Running Boards
2
Antilock Brake System Pump
3
Interior BEC LT1
4
MBS Passenger
5
Suspension Leveling Compressor
6
4WD Transfer Case Electronic Control
10
Electric Parking Brake
13
Interior BEC LT2
14
Rear BEC 1
17
MBS Drive
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
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
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
89
Injector B – Even
90
Oxygen Sensor B
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
104
Starter
107
Aero Shutter
109
Police Upfitter
112
Starter Relay
114
Front Windshield Washer
115
Rear Window Washer
116
Right HID Headlamp
122
Left HID Headlamp
123
Cooling Fan Right
Instrument Panel Fuse Block (Left)
The left instrument panel fuse block access door is on the driver side edge of the instrument panel.
Chevrolet Tahoe – wiring diagram – fuse box instrument panel fuse block (left)
Fuses
Usage
1
Not Used
2
Not Used
3
Not Used
4
Accessory Power Outlet 1
5
Retained Accessory Power/Accessory
6
APO/BATT
7
Universal Garage Door Opener/Inside Rear View Mirror
8
SEO Retained Accessory Power
9
Not Used
10
Body Control Module 3
11
Body Control Module 5
12
Steering Wheel Controls Backlighting
13
Not Used
14
Not Used
15
Not Used
16
Discrete Logic Ignition Sensor
17
VPM
18
Mirror Window Module
19
Body Control Module 1
20
Front Bolster (if equipped)
21
Not Used
22
Not Used
23
Not Used
24
Heater, Ventilation and Air Conditioning Ignition/Heater, Ventilation and Air Conditioning Auxiliary
25
Instrument Cluster Ignition/Sensing Diagnostic Module Ignition
26
Tilt Column/SEO, Tilt Column Lock 1/SEO
27
Data Link Connector/Driver Seat Module
28
Passive Entry/Passive Start/Heater, Ventilation and Air Conditioning Battery
29
Content Theft
30
Not Used
31
Not Used
32
Not Used
33
SEO/Automatic Level Control
34
Park Enable Electric Adjustable Pedal (if equipped)
35
Not Used
36
Miscellaneous R/C
37
Heated Steering Wheel
38
Steering Column Lock 2 (if equipped)
39
Instrument Cluster Battery
40
Not Used
41
Not Used
42
Euro Trailer (if equipped)
43
Left Doors
44
Driver Power Seat
45
Not Used
46
Right Heated/Cooled Seat
47
Left Heated/Cooled Seat
48
Not Used
49
Not Used
50
Accessory Power Outlet 2
51
Not Used
52
Retained Accessory Power/Accessory Relay
53
Run/Crank Relay
54
Not Used
55
Not Used
56
Not Used
Instrument Panel Fuse Block (Right)
The right instrument panel fuse block access door is on the passenger side edge of the instrument panel.
Chevrolet Tahoe – wiring diagram – fuse box instrument panel fuse block (right)
Number
Usage
1
Not Used
2
Not Used
3
Not Used
4
Accessory Power Outlet 4
5
Not Used
6
Not Used
7
Not Used
8
Glove Box
9
Not Used
10
Not Used
11
Not Used
12
Steering Wheel Controls
13
Body Control Module 8
14
Not Used
15
Not Used
16
Not Used
17
Not Used
18
Not Used
19
Body Control Module 4
20
Rear Seat Entertainment
21
Sunroof
22
Not Used
23
Not Used
24
Not Used
25
Not Used
26
Info/Airbag
27
Spare/RF WDW RN SW
28
Obstacle Detection/USB
29
Radio
30
Not Used
31
Not Used
32
Not Used
33
Not Used
34
Not Used
35
Not Used
36
SEO B2
37
SEO
38
Body Control Module 2
39
A/C Inverter
40
Not Used
41
Not Used
42
Not Used
43
Not Used
44
Right Door Window Motor
45
Front Blower
46
Body Control Module 6
47
Body Control Module 7
48
Amplifier
49
Right Front Seat
50
Accessory Power Outlet 3
51
Not Used
52
Retained Accessory Power/Accessory Relay
53
Not Used
54
Not Used
55
Not Used
56
Not Used
Rear Compartment Fuse Block
The rear compartment fuse block is behind the access panel on the left side of the compartment.
Chevrolet Tahoe – wiring diagram – fuse box – rear compartment
ISO Mini Relays
Usage
1
Rear Defog
Micro Fuses
Usage
2
Heated Second Row Seat Left
3
Heated Second Row Seat Right
4
Heated Mirrors
5
Liftgate
6
Glass Breakage
7
Liftglass
8
Liftgate Module Logic
9
Rear Wiper
10
Rear Heater, Ventilation and Air Conditioning Blower
11
Second Row Seat
19
Rear Fog Lamp (if equipped)
M-Type
Usage
12
Liftgate Module
13
Third Row Seat
14
Rear Accessory Power Outlet
15
Rear Defogger
Ultra Micro Relays
Usage
16
Liftgate
Micro Relays
Usage
17
Liftglass
18
Rear Fog Lamp (if equipped)
19
Heated Mirrors
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.