Jonathan Yarden Mar 25, 2021 · 5 min. read
In this article you will find a description of fuses and relays Chevrolet,
with photos of block diagrams and their locations.
Highlighted the cigarette lighter fuse (as the most popular thing people look for).
Get tips on blown fuses, replacing a fuse, and more.
Instrument Panel Fuse Block

Circuit Breaker |
Usage |
C |
Power Windows |
D |
Power Seats |
Fuse |
Description |
1 |
CIGAR LIGHTER â Instrument Panel and Console Cigar Lighter |
3 |
DRL MDL |
4 |
HVAC #2 â HVAC Control Assembly, Soloneid Box |
5 |
HAZARD FLASHER |
6 |
POWER ACCESSORY #2 â Sunroof Control Unit |
10 |
I/P ELECTRONICS BATTERY FEED â Chime Module, Electronic Brake Control Module (EBCM), Theft Deterrent Module, Radio |
11 |
STARTER RELAY |
12 |
ANTI-THEFT â Theft Deterrent Module |
13 |
ABS â Electronic Brake Control Module (EBCM), ABS Relay |
14 |
HVAC BLOWER MOTOR â Blower Motor Relay |
15 |
HVAC #1 â Air Temperature Valve Motor, Daytime Running Lamps Module (with DRL), HVAC Control Assembly, Multifunction Lever Cruise Control Switch |
16 |
REAR DEFOG â HVAC Control Assembly Rear Window Defogger Switch |
19 |
POWER ACCESSORY #1â Trunk Courtesy Lamp, Door Lock Switches, Power Mirror Switch |
21 |
AIR BAG â Air Bag System |
23 |
STOPLAMPS â TCC/Brake Switch |
24 |
CRUISE CONTROL |
28 |
CTSY LAMPS â Vanity Mirrors, Defogger Relay, I/P Compartment Lamp, Header Courtesy and Reading Lamp, I/S Lighted Rearview Mirror, Dome Lamp |
29 |
WIPER â Wiper Switch |
30 |
TURN SIGNAL â Turn Signal Flasher |
32 |
POWER LOCKS â Door Lock Relay, Keyless Entry Receiver |
38 |
RADIO â Radio, Steering Wheel Radio Switches |
39 |
I/P ELECTRONICS IGNITION FEED â Headlamp Switch, Cruise Control Cut-Out Switch, Sensing and Diagnostic Module (SDM), TCC/Brake Switch, Instrument Cluster, Chime Module, Keyless Entry Receiver |
Underhood Electrical Center â Passenger Side
Fuse |
Description |
A.I.R. PMP |
A.I.R. Relay |
R/CMPT REL |
Remote Trunk Release, Back-Up Lamps |
ECM BAT |
Powertrain Control Module (PCM), Fuel Pump, Fuel Pump Relay, Fan Cont #1 Relay |
A/C CONT |
A/C CMPR Relay (VIN M only) |
TCC |
Automatic Transaxle, Transaxle Range Switch (VIN M only) |
F/INJN |
Fuel Injectors |
ECM IGN |
Powertrain Control Module (PCM), Mass Air Flow (MAF) Sensor (VIN X only), EGR, CCP, Oxygen Sensor, VAC CAN SW, Fan #2 Relay |
ELEK IGN |
Electronic Ignition (EI) Control Module |
10 |
I/P Fuse Block |
11 |
FAN CONT #1 Relay |
12 |
Passenger Side Underhood Electrical Center and I/P Fuse Blocks: Fuses 5, 14,23 and 32 |
13 |
FAN CONT #2 Relay and I/P Fuse Block: Fuse 16, Power Seat Circuit Breaker âDâ |
Relay |
Description |
14 |
FUEL PUMP |
15 |
A/C CMPR |
16 |
FAN CONT #2 â Secondary Cooling Fan (Passenger Side) |
17 |
FAN CONT #1â Primary Cooling Fan (Driver Side) |
18 |
Ignition Relay |
Â
Underhood Electrical Center â Driver Side

Fuse |
Usage |
FOG LPS |
Fog Lamps |
PARK LPS |
Headlamp Switch |
HORN |
Horn Relay, Underhood Lam |
VAR P/S |
Steering |
ABS |
Anti-Lock Brake System |
10 |
IGN SW2 â VP Fuse Block: PWR WDO and Circuit Breaker âDâ; Passenger Side Underhood Electrical Center: TCC and ENG EMIS Fuses |
11 |
IGN SW1 â VP Fuse Block: Radio, Wiper, HVAC, ABS and Turn Signal Fuses; Passenger Side Underhood Electrical Center: F/IJN, ECM IGN and ELEK IGN Fuses |
12 |
HD LPS â Circuit Breaker to Headlamp Switch |
13 |
ABS â ABS Relay |
Relay |
Description |
14 |
ABS â Anti-Lock Brake System |
16 |
HORN |
WARNING:Â Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
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