Most of the electrical circuits in the american crossover are protected by fused. Powerful consumers are connected via relays. Most of the protective elements are located in the mounting blocks located in the passenger compartment, trunk and under the hood.
The information on the diagrams is relevant for the 4th generation Chevrolet Tahoe (K2UC) models 2013, 2014, 2015, 2016, 2017, 2018, 2019.
In the engine compartment
The fuse box is located on the driver's side behind a plastic cover.
General view.
Diagram
No.
Description
1
Retractable footrests
2
Anti-lock brake system pump
3
I / P Fuse Box - Left
4
Passenger belt pretensioner
5
Body leveling compressor
6
4WD all-wheel drive system management
10
Electric parking brake
13
I / P Fuse Box - Left
14
Passenger compartment fuse box - Rear
17
Driver's electric belt tensioner
21
Bleed solenoid - stern leveling system.
23
Suspension control unit / Fuel module control unit
24
Damping system (Magnetic Real Time Dampening)
25
Fuel pump control unit
26
Spare fuse / Adjustable voltage BCM
28
Fuse for accessories 2
29
Additional equipment repeat 2
30
Wiper
34
Reversing lamps
35
ABS valve
36
Trailer braking system
37
Additional equipment repeat 3
39
Trailer - Stop lamp / turn signal - Starboard
40
Trailer - Stop lamp / turn signal - Port side
41
Trailer size lamps
42
Trailer side lights - Right side
43
Trailer Side Lights - Port Side
44
Fuse for accessories 3
45
Aft Leveling System - Ignition Line
47
Fuse for accessories 4
48
Relay accessories 4
49
Reversing lamps - trailer
51
Side light relay
60
A / C Compressor Clutch
63
Fuse for accessories 1
67
12 volt power supply - trailer
69
Remote control of additional equipment 3 and 4
70
Option 3 & 4 Relay Voltage Reference
72
Relay accessories 1
74
Ignition line - engine control unit
75
The spare channel is the ignition line.
76
Automatic transmission - ignition line
77
Remote control of additional equipment 1 and 2
78
Option 1 & 2 Relay Voltage Reference
83
Spare fuse
84
Ignition relay
87
Engine management system sensors - MIAS, FCS
88
Ignition coils - odd
89
Ignition coils - even
90
Oxygen sensor - B
91
Throttle control
92
Relay - engine control unit
93
Signal
94
Fog lights
95
Head lighting - high beam
100
Oxygen sensor - A
101
The engine control unit
102
Engine control unit / automatic transmission control unit
103
Heater module - Rear
104
Starter
107
Aerodynamic flaps
109
Add. equipment (police modification)
112
Starter repeat
114
Front washer motor
115
Rear washer motor
116
Cooling Fan Motor - Left
121
Right LED module / Right xenon module
122
Left LED module / Left xenon module
123
Cooling Fan Motor - Right
In the passenger compartment
There are two mounting boxes here.
Fuse box #1
The main one located at the end of the dashboard on the driver's side.