Year of production: 2012, 2013, 2014
Underhood Fuse Block
The underhood fuse block is located in the engine compartment, on the driver’s side of the vehicle.
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) ) (If Equipped) |
32 |
Driver’s Side High-Beam Headlamp |
33 |
Daytime Running Lamps 2 (If Equipped) |
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 |
Not Used |
48 |
Auxiliary Climate Control (Ignition) |
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 |
55 |
Climate Controls (Ignition) |
56 |
Engine Control Module, Secondary Fuel Pump (Ignition) |
J-Case Fuse |
Usage |
57 |
Cooling Fan 1 |
58 |
Automatic Level Control Compressor |
59 |
Heavy Duty Antilock Breaking System |
60 |
Cooling Fan 2 |
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 |
Transfer Casse |
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 |
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 |
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
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 Lock2 (Unlock Feature) |
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 |
Power Mirror |
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 |
Cooled Seats |
25 |
Driver Seat Module, Remote Keyless Entry System |
26 |
Driver Power Done Lock (Unlock Feature) |
Circuit Breaker |
Usage |
LT DR |
Driver Side Power Window Circuit Breaker |
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
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 |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.