Chevrolet Express (2011 – 2016) – fuse box diagram

Year of production: 2011, 2012, 2013, 2014, 2015, 2016

Engine Compartment Fuse Relay Center

The fuse block is located in the engine compartment on the driver side of the vehicle.

Fuse	Usage
3	Right Stop/Turn Trailer
4	Spare
5	Spare
6	Fuel System Control Module Ignition
7	Body Control Module 5
8	Body Control Module 7
9	Body Control Module 4
10	Instrument Panel Cluster
11	Trailer Wiring
12	Spare
13	Brake Switch
14	Windshield Washer
16	Horn
17	Transmission
18	Air Conditioning Compressor
19	Engine Control Module Battery
20	Spare
21	Left Stop/Turn Trailer
22	Spare
23	Spare
24	Fuel Pump
25	Auxiliary Power Outlet
26	Body Control Module 3
27	Special Equipment Option
28	Airbag
29	Steering Wheel Sensor
30	Engine Control Module Ignition/Glow Plug Module
31	Transmission Control Module Ignition
32	Transmission Control Module Batter
33	Spare
34	Spare
35	Fuel Operated Heater Module
36	Fuel System Control Module Battery
51	Left high Beam Headlamp
52	Right High Beam Headlamp
53	Left Low Beam Headlamp
54	Right Low Beam Headlamp
55	Wiper
56	Canister Vent Solenoid
58	Body Control Module 2
59	Body Control Module 1
61	Spare
62	Oxygen Sensor 2 (Post), EV Fan (Diesel)
63	Spare
64	Mass Air Flow/Canister Vent
65	Odd Ignition/Injectors
66	Daytime Running Lamps 2 (LOLVL‐V22) (If Equipped)
67	Daytime Running Lamps 1 (UPLVL+V22) (If Equipped)
68	Auxiliary Stop Lamps
69	Spare
70	Spare
71	Fuel Heater
72	Body Control Module 6
73	Lighter/Data Link Connection
75	V6 Fuel Injectors
76	Spare
77	Oxygen Sensor 2 (Pre)
78	Engine Control Module Powertrain
79	Even Ignition/Injectors

 

J-Case Fuses	Usage
1	ABS Motor
2	ABS Module
41	Spare
42	Trailer Wiring
43	Fan High
44	Starter Solenoid
45	Engine Control Module/Powertrain
46	Fuel System Control Module Battery
47	Fan Lo
74	Front Blower

 

Relay	Usage
15	Run/Crank
37	Spare
38	Fuel Pump
39	Crank
40	Air Conditioning Compressor
48	Fan High
49	Powertrain
50	Spare
57	Fan Low
60	Fan Control

 

Floor Console Fuse Block

The floor console fuse block is located under the driver seat.

Fuse	Usage
F1	Empty
F2	Steering Wheel Sensor
F3	Auxiliary Parking Lamps (Cut-Away)
F4	Front Park Lamps
F5	Trailer Park Lamps
F6	Upfitter Park Lamps
F7	Right Rear Park Lamp
F8	Left Rear Park Lamp
F9	Outside Rear View Mirror Switch
F10	Airbag/Automatic Occupant Sensing
F11	OnStar® (If Equipped)
F12	Empty
F13	Heating, Ventilation and Air Conditioning 2
F14	Heating, Ventilation and Air Conditioning 2
F15	Empty
F17	Outside Rear View Mirror Heater
F18	Rear Window Defogger
F19	Compass
F20	Radio/Chime/XM™ Satellite Radio (If Equipped)
F21	Remote Function Actuator/Tire Pressure Monitor
F22	Ignition Switch/Discrete Logic Ignition Sensor (PK3)
F23	Instrument Panel Cluster
F25	Heating, Ventilation and Air Conditioning Control
F26	Auxiliary/Trailer Backup
F27	Tailamps Backup
F30	Upfitter Courtesy Lamps
F31	Front Door Lock
F32	Rear Door Lock
F33	Cargo Door Unlock
F34	Passenger Door Unlock
F35	Rear Passenger Door Unlock
F36	Driver Door Unlock
F37	Empty
F38	Empty

 

J-Case Fuses	Usage
F16	Upfitter Auxiliary 1
F24	Empty
F28	Upfitter Auxiliary 2 Reading Lamps
F29	Rear Blower

 

Relays	Usage
K1	Run (High Current Micro)
K2	Empty (High Current Micro)
K3	Park Lamps (High Current Micro)
K4	Upfitter Auxiliary 2 (High Current Mini)
K5	Rear Defogger (High Current Micro)
K6	Retained Accessory Power (RAP) (High Current Micro)

 

Circuit Breaker	Usage
CB1	Power Seats
CB2	Power Windows

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Chevrolet Express (2010) – fuse box diagram

Year of production: 2010

Floor Console Fuse Block

The floor console fuse block is located under the driver seat.

Fuse	Usage
F1	Empty
F2	Steering Wheel Sensor
F3	Auxiliary Parking Lamps (Cut-Away)
F4	Front Park Lamps
F5	Trailer Park Lamps
F6	Upfitter Park Lamps
F7	Right Rear Park Lamp
F8	Left Rear Park Lamp
F9	Outside Rear View Mirror Switch
F10	Airbag/AOS
F11	Empty
F12	Empty
F13	Heating, Ventilation and Air Conditioning 2
F14	Heating, Ventilation and Air Conditioning 2
F15	Empty
F17	Outside Rear View Mirror Heater
F18	Rear Window Defogger
F19	Compass
F20	Radio/Chime
F21	Remote Function Actuator/Tire Pressure Monitor
F22	Ignition Switch/Discrete Logic Ignition Sensor (PK3)
F23	Instrument Panel Cluster
F25	Heating, Ventilation and Air Conditioning Control
F26	Auxiliary/Trailer Backup
F27	Tail Lamps Backup
F30	Upfitter Courtesy Lamps
F31	Front Door Lock
F32	Rear Door Lock
F33	Cargo Door Unlock
F34	Passenger Door Unlock
F35	Rear Passenger Door Unlock
F36	Driver Door Unlock
F37	Empty
F38	Empty

 

J- Case Fuses	Usage
F16	Upfitter Auxiliary 1
F24	Empty
F28	Upfitter Auxiliary 2 Reading Lamps
F29	Rear Blower

 

Relays	Usage
K1	Run (High Current Micro)
K2	Empty (High Current Micro)
K3	Park Lamps (High Current Micro)
K4	Upfitter Auxiliary 2 (High Current Mini)
K5	Rear Defogger (High Current Micro)
K6	Retained Accessory Power (RAP) (High Current Micro)

 

Engine Compartment Fuse Relay Center

The fuse block is located in the engine compartment on the driver side of the vehicle.

Fuse	Usage
3	Right Stop/Turn Trailer
4	Spare
5	Spare
6	Fuel System Control Module Ignition
7	Body Control Module 5
8	Body Control Module 7
9	Body Control Module 4
10	Instrument Panel Cluster
11	Trailer Wiring
12	Spare
13	Brake Switch
14	Windshield Washer
16	Horn
17	Transmission
18	Air Conditioning Compressor
19	Engine Control Module Battery
20	Spare
21	Left Stop/Turn Trailer
22	Spare
23	Spare
24	Fuel Pump
25	Auxiliary Power Outlet
26	Body Control Module 3
27	Special Equipment Option
28	Airbag
29	Steering Wheel Sensor
30	Engine Control Module Ignition/Glow Plug Module
31	Transmission Control Module Ignition
32	Transmission Control Module Batter
33	Spare
34	Spare
35	Fuel Operated Heater Module
36	Spare
51	Left high Beam Headlamp
52	Right High Beam Headlamp
53	Left Low Beam Headlamp
54	Right Low Beam Headlamp
55	Wiper
56	Canister Vent Solenoid
58	Body Control Module 2
59	Body Control Module 1
61	Spare
62	Oxygen Sensor 2 (Post)
63	Fan Clutch (EV)
64	Mass Air Flow/Canister/LAMBDA
65	Odd Ignition/Injectors
66	Daytime Running Lamps 2 (LOLVL-V22)
67	Daytime Running Lamps 1 (LOLVL-V22)
68	Auxiliary Stop Lamps
69	Spare
70	Spare
71	Fuel Heater
72	Body Control Module 6
73	Lighter/Data Link Connection
75	V6 Fuel Injectors
76	Spare
77	Oxygen Sensor 2 (Pre)
78	Engine Control Module Powertrain
79	Even Ignition/Injectors

 

J-Case Fuses	Usage
1	ABS Motor
2	ABS Module
41	Spare
42	Trailer Wiring
43	Fan High
44	Starter Solenoid
45	Engine Control Module/Powertrain
46	Fuel System Control Module Battery
47	Fan Lo
74	Front Blower

 

Relay	Usage
15	Run/Crank
37	Spare
38	Fuel Pump
39	Crank
40	Air Conditioning Compressor
48	Fan High
49	Powertrain
50	Fan Clutch (EV)
57	Fan Low
60	Fan Control

 

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Chevrolet Express (2008) – fuse box diagram

Year of production: 2008

Floor Console Fuse Block

The floor console fuse block is located under the driver seat.

Fuse	Usage
1	Climate Control 2 (HVAC)
2	Compass
3	Ignition Switch, Theft Deterrent System Module (PK3)
4	Upfitter Courtesy Lamps
5	Climate Control 1 (HVAC)
6	Empty
7	Instrument Panel Cluster
8	Audio System, Chime
9	Auxiliary Park Lamp
10	Auxiliary Trailer Back-up Lamps
11	Remote Function Actuator, Tire Pressure Monitor (TPM)
12	Climate Control (HVAC) Controls
13	Trailer Park Lamps
14	Front Park Lamps
15	Taillamps, Back-up Lamps
16	Empty
17	Steering Wheel Sensor
18	Outside Rearview Mirror Switch
19	Empty
20	Empty
21	Rear Defogger
22	Outside Rearview Mirror Heater
23	Empty
24	Empty
25	Cargo Door Unlock
26	Rear Door Lock
27	Front Door Lock
28	Rear Passenger Door Unlock
29	Upfitter Park Lamps
30	Front Passenger Door Unlock
31	Driver Door Unlock
32	Airbag System, Automatic Occupant Sensing (AOS) System
33	Right Rear Park Lamp
34	Left Rear Park Lamp
35	Upfitter Auxiliary 2 (J-Case)
36	Upfitter Auxiliary 1 (J-Case)
37	Rear Blower (J-Case)
38	Empty (J-Case)
39	Run (High Current Micro)
40	Park Lamps (High Current Micro)
41	Empty (Mini Micro)
42	Upfitter Auxiliary 2 (High Current ISO Relay)
43	Retained Accessory Power (RAP) (High Current Micro)
44	Rear Defogger (High Current Micro)

 

Circuit Breaker	Usage
45	Power Window
46	Power Seats

 

Engine Compartment Fuse Relay Center

The fuse block is located in the engine compartment on the driver side of the vehicle.

Fuse	Usage
1	Left High-Beam Headlamp
2	Fuel Pump
3	Empty
4	Fuel Heater (Diesel)
5	Right High-Beam Headlamp
6	Empty
7	Left Low-Beam Headlamp
8	Right Stoplamp, Trailer Turn Signal
9	Right Low-Beam Headlamp
10	Daytime Running Lamps 2 (DRL)
11	Fuel System Control Module Ignition (Gas)
12	Daytime Running Lamps 1 (DRL)
13	Auxiliary Stoplamp
14	Fuel Operated Heater Module (Diesel)
15	Fuel System Control Module Battery (Gas)
16	Left Stoplamp, Trailer Turn Signal
17	Canister Vent Solenoid (Gas)
18	Empty
19	Empty
20	Body Control Module 1
21	Special Equipment Option (SEO)
22	Body Control Module 4
23	Body Control Module 6
24	Empty
25	Body Control Module 7
26	Body Control Module 3
27	Body Control Module 5
28	Empty
29	Empty
30	Instrument Panel Cluster
31	Empty
32	Brake Switch
33	Auxiliary Power Outlet
34	Airbag
35	Trailer Wiring
36	Steering Wheel Sensor (Gas)
37	Body Control Module 2
38	Cigarette Lighter, Data Link Controller
39	Windshield Wiper
40	Empty
41	Windshield Washer
42	Empty
43	Horn
44	Transmission Control Module Battery
45	Empty
46	Oxygen Sensor 1 (Gas)
47	Transmission Control Module Ignition
48	Engine Control Module Ignition
49	Mass Airflow Sensor, Canister Vent
50	Engine Control Module, Powertrain
51	Transmission
52	Even Ignition Injectors (Gas)
53	Glow Plug Module (Diesel)
54	Engine Control Module Battery
55	Odd Ignition Injectors (Gas)
56	Oxygen Sensor 2 (Gas)
57	Air Conditioning Compressor
58	Fan Clutch (Diesel)
59	V6 Fuel Injectors (Gas)
60	Antilock Brake System Module (J-Case)
61	Antilock Brake System Motor (J-Case)
62	Trailer Wiring (J-Case)
63	Empty
64	Starter Solenoid (J-Case)
65	Engine Control Module (ECM), Powertrain (Diesel) (J-Case)
66	Front Blower (J-Case)
67	Empty
77	Body BEC (Mega Fuse)

 

Relays	Usage
68	Empty
69	Run, Crank (High Current Micro)
70	Windshield Wiper High (High Current Micro)
71	Windshield Wiper (High Current Micro)
72	Fuel Pump (Mini Micro)
73	Crank (High Current Micro)
74	Air Conditioning Compressor (Mini Micro)
75	Fan Clutch (Diesel) (Solid State)
76	Powertrain (High Current Micro)

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Chevrolet Express (2006 – 2007) – fuse box diagram

Year of production: 2006, 2007

Floor Console Fuse Block

The floor console fuse block is located under the driver’s seat.

Fuse	Usage
1	Spare
2	Outside Rear View Mirror
3	Courtesy Lamp/SEO
4	Left Rear Stop/Turn Signal
5	Cargo Locks
6	Right Rear Stop/Turn Signal
7	Driver Locks
8	Stop/Center High Mounted Stop Lamp
9	Climate Control 1
10	Climate Control
11	Brakes
12	Heated Mirror/Defogger
13	Right Rear Blower
14	Driver Turn Mirror
15	Door Locks
16	Upfitter Park
17	Not Available
18	Left Rear Park Lamp
19	Pass Turn Mirror
20	Right Rear Park Lamp
21	Trailer Park Lamp
22	Front Park Lamp
32	Auxilary 1
33	Auxilary 2

 

Relays	Usage
23	Window Residual Accessory Power
24	Auxiliary
25	Right Rear Defogger
26	Courtesy Lamp
27	Cargo Unlock
28	Driver Unlock
29	Park Lamp
30	Door Locks
31	Passenger Unlock

 

Circuit Breaker	Usage
34	Power Window

Engine Compartment Fuse Relay Center

The fuse block is in the engine compartment on the driver’s side of the vehicle.

Fuse	Usage
1	Radio Battery
2	Powertrain Control Module Battery (Gas), FOH, Engine Control Module, Transmission Control Module Battery (Diesel)
3	Left Rear Turn Lamp
4	Right Rear Turn Lamp
5	Backup Lamps Trailer Wiring
6	Ignition 0
7	Stop Lamp
8	Right Rear Defogger/Heated Mirror
9	Right Daytime Running Lamp/Turn Signal
10	Left Daytime Running Lamp/Turn Signal
11	Truck Body Control Module 4
12	Fuel Pump
13	Trailer
14	Hazard Flashers
15	Horn
16	Truck Body Control Module 3
17	Trailer Stop/Turn Signal
18	Truck Body Control Module 2
19	Truck Body Control Module
20	Remote Function Actuator
21	Engine 2 (Gas), Spare (Diesel)
22	Ignition E
23	Engine 1
24	Truck Body Control Module Ignition 1
25	Spare (Gas), Fuel Heater (Diesel)
26	Inside Rearview Mirror
27	Crankcase
28	Brake Transmission Shift Interlock System
29	Auxiliary Power Outlets
30	Cigarette Lighter
31	Instrument Panel Cluster
32	Air Conditioning
33	Spare (Gas), Engine Control Module (Diesel)
34	Canister Vent Solenoid (Gas), Rear Fog Lamps (Diesel)
35	Spare
36	Brake Transmission Shift Interlock, Vehicle Back-Up
37	Airbag
38	Powertrain Control Module Ignition 1 (Gas), Engine Control Module, Transmission Control Module, Glow Plug Control Module Ignition 1 (Diesel)
39	Oxygen Sensor B (Gas), Spare (Diesel)
40	Oxygen Sensor A
41	Windshield Wipers
42	Right Headlamp – Low Beam
43	Left Headlamp – Low Beam
44	Left He45adlamp – High Beam
45	Right Headlamp – High Beam
46	Truck Body Controller- Accessory (Gas), Truck Body Controller, Transmission Control Module Accessory (Diesel)
47	Front Windshield Wiper
48	Anti-lock Brakes, Vehicle Stability Enhancement System
49	Ignition A
50	Trailer
51	Climate Control Blower
52	Ignition B
63	Spare (Gas), Engine Control Module Actuator (Diesel)pare
64	Spare

 

Relays	Usage
53	Windshield Wiper
54	Air Conditioning
55	Spare (Gas), Rear Fog Lamps (Diesel)
56	Headlamp – High Beam
57	Fuel Pump
58	Headlamp – Low Beam
59	Horn
SPARE (G), ECM (D)	Spare (Gas), Engine Control Module (Diesel)
STRTR	Starter

 

Circuit Breaker	Usage
PWR SEAT	Power Seat

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Chevrolet Express (2003 – 2005) – fuse box diagram

Year of production: 2003, 2004, 2005

Floor Console Fuse Block

The floor console fuse block is located under the driver’s seat.

Fuse	Usage
1	Spare
2	Outside Rear View Mirror
3	Courtesy Lamp/SEO
4	Left Rear Stop/Turn Signal
5	Cargo Locks
6	Right Rear Stop/Turn Signal
7	Driver Locks
8	Stop/Center High Mounted Stop Lamp
9	Climate Control 1
10	Climate Control
11	Brakes
12	Heated Mirror/Defogger
13	Right Rear Blower
14	Driver Turn Mirror
15	Door Locks
16	Upfitter Park
17	Not Available
18	Left Rear Park Lamp
19	Pass Turn Mirror
20	Right Rear Park Lamp
21	Trailer Park Lamp
22	Front Park Lamp
32	Auxilary 1
33	Auxilary 2

 

Relays	Usage
23	Window Residual Accessory Power
24	Auxiliary
25	Right Rear Defogger
26	Courtesy Lamp
27	Cargo Unlock
28	Driver Unlock
29	Park Lamp
30	Door Locks
31	Pass Unlock

 

Circuit Breaker	Usage
34	Power Window

Engine Compartment Fuse Relay Center

The fuse block is in the engine compartment on the driver’s side of the vehicle.

Fuse	Usage
1	Radio Battery
2	Powertrain Control Module Battery
3	Left Rear Turn Lamp
4	Right Rear Turn Lamp
5	Backup Lamps Trailer Wiring
6	Ignition 0
7	Stop Lamp
8	Right Rear Defogger/Heated Mirror
9	Right Daytime Running Lamp/Turn Signal
10	Left Daytime Running Lamp/Turn Signal
11	Truck Body Control Module 4
12	Fuel Pump
13	Trailer
14	Flasher
15	Horn
16	Truck Body Control Module 3
17	Trailer Stop/Turn Signal
18	Truck Body Control Module 2
19	Truck Body Control Module
20	Remote Function Actuator
21	Engine 2
22	Ignition E
23	Engine 1
24	Truck Body Control Module Ignition 1
25	Spare
26	RPA/lnside Rearview Mirror
27	Crankcase
28	Brake Transmission Shift Interlock System
29	Auxiliary Power Outlets
30	Cigarette Lighter
31	Instrument Panel Cluster
32	Air Conditioning
33	Spare
34	Vent
35	Spare
36	Vehicle Back Up
37	Supplemental Inflatable Restraint System
38	Powertrain Control Module Ignition I
39	Oxygen Sensor B
40	Oxygen Sensor A
41	Windshield Wipers
42	Right Headlamp – Low Beam
43	Left Headlamp – Low Beam
44	Left He45adlamp – High Beam
45	Right Headlamp – High Beam
46	Truck Body Control Module-Accessory
47	Front Windshield Wiper
48	Anti-Lock Brakes
49	Ignition A
50	Trailer
51	Climate Control Blower
52	Ignition B
63	Spare
64	Spare

 

Relays	Usage
53	Windshield Wiper
54	Air Conditioning
55	Spare
56	Headlamp – High Beam
57	Fuel Pump
58	Headlamp – Low Beam
59	Horn
61	Starter
62	Spare

 

Circuit Breaker	Usage
60	Power Window

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Chevrolet Express (2002) – fuse box diagram

Year of production: 2002

Instrument Panel Fuse Block

The fuse block access door is on the driver’s side of the instrument panel below the
hood release lever.

Fuse position	Fuse name	Circuit protected
1	STOP	Center High Mounted Stop Lamp, Stoplamps
2	HTD MIR	Electric Heated Mirrors
3	CTSY	Courtesy Lamps, Dome/RDG Lamps, Vanity Mirrors, Power Mirrors
4	GAUGES	IP Cluster, DRL Relay, DRL Module, HDLP Switch, Keyless Entry Illumination, Low Coolant Module, CHIME Module, DRAB Module
5	Hazard	Hazard Lamps/CHIME Module
6	CRUISE	Cruise Control
7	PWR AUX	Auxiliary Power Outlet, DLC
8	Crank	—
9	PARK LPS	License Plate Lamp, Parking Lamps, Taillamps, Front Sidemarkers, Glove Box Ashtray
10	AIR BAGS	Air Bags
11	WIPER	Wiper Motor, Washer Pump
12	HTR-A/C	A/C, A/C Blower, High Blower Relay, HTD Mirror
13	CIG LTR	Cigarette Lighter
14	ILLUM	Instrument Panel Cluster, HVAC Controls, RR HVAC Controls, Instrument Panel Switches, Radio Illumination, Door Switch Illumination
15	DRL	Daytime Running Lamp Relay
16	TURN B/U	Front Turn, RR Turn, Back-up Lamps, BTSI Solenoid
17	RADIO- 1	Radio (Ign, Accy), Upfitter Provision Relay
18	BRAKE	4WAL PCM, ABS, Cruise Control
19	RADIO-B	Radio (Battery), Power Antenna
20	TRANS	PRNDL, Automatic Transmission
21	SECURITY	Passlock
22	RR DEFOG	Rear Window Defog
23	Not Used	—
24	RR HVAC	RR HVAC Controls, HIGH, MED, LOW Relays
A	PWR ACCY	Power Door Lock, Six-Way Power Seat, Keyless Entry Illumination Module
B	PWR WDO	Power Windows

Engine Compartment Fuse Relay Center

The fuse block is on the driver’s side of the engine compartment at the rear.

Fuse name	Circuit protected
SPARE	Spare Fuse
A.I.R.	Air Pump
BLOWER	Front Blower Motor
ABS	Electronic Brake Control Module
IGN-B	Ignition Switch
IGN-A	Starter Relay, Ignition Switch
BATT	Instrument Panel Fuse Block
LIGHTING	Instrument Panel Fuse Block, Headlamp Switch
RH-HDLP	Right-hand Headlamp (Export Only)
LH-HDLP	Left-hand Headlamp (Export only)
RH-HIBM	Right-hand High-beam Headlamp (Export Only)
LH-HIBM	Left-hand High-beam Headlamp (Export only)
ETC	Electronic Throttle Control
RR BLOWER	Rear Auxiliary Blower
FUEL SOL	Fuel Solenoid
ENG-I	Heated O2 Sensors, Mass Air Flow Sensor, Evap Canister Purge Valve, Crankshaft Position Sensor, Secondary Air Injection Relay (Diesel), Water in Fuel Sensor (Diesel), Fuel Heater (Diesel), Glowplug Relay (Diesel), Wastegate Solenoid (Diesel)
ECM-I	Ignition Coil, Crankshaft Position Sensor, VCM, Fuel Injectors, Coil Driver
IGN-E	Air Conditioning Clutch Relay
SPARE	Spare Fuse
SPARE	Spare Fuse
SPARE	Spare Fuse
A/C	Air Conditioning Clutch Relay
HORN	Horn Relay, Underhood Lamp(s)
ECM-B	Fuel Pump Relay, VCM, PCM, Fuel Pump and Engine Oil Pressure Switch
SPARE	Spare Fuse
SPARE	Spare Fuse
AUX A	Upfitter Provisions
AUX B	Upfitter Provisions
A/C RELAY	Air Conditioning
HORN RELAY	Horn
A.I.R. RELAY	Air
FUEL PUMP RELAY	Fuel Pump
STARTER RELAY	Starter
ABS EXPORT RELAY	ABS Export

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Chevrolet Express (2001) – fuse box diagram

Year of production: 2001

Instrument Panel Fuse Block

The fuse block access door is on the driver’s side of the instrument panel below the
hood release lever.

Fuse position	Fuse name	Circuit protected
1	STOP	CHMSL, Stoplamps
2	HTD MIR	Electric Heated Mirrors
3	CTSY	Courtesy Lamps, Dome/RDG Lamps, Vanity Mirrors, Power Mirrors
4	GAUGES	IP Cluster, DRL Relay, DRL Module, HDLP Switch, Keyless Entry Illumination, Low Coolant Module, CHIME Module, DRAB Module
5	Hazard	Hazard Lamps/CHIME Module
6	CRUISE	Cruise Control
7	PWR AUX	Auxiliary Power Outlet, DLC
8	Crank	—
9	PARK LPS	License Plate Lamp, Parking Lamps, Taillamps, Front Sidemarkers, Glove Box Ashtray
10	AIR BAGS	Air Bags
11	WIPER	Wiper Motor, Washer Pump
12	HTR-A/C	A/C, A/C Blower, High Blower Relay, HTD Mirror
13	CIG LTR	Cigarette Lighter
14	ILLUM	IP Cluster, HVAC Controls, RR HVAC Controls, IP Switches, Radio Illumination, Door Switch Illumination
15	DRL	DRL Relay
16	TURN B/U	Front Turn, RR Turn, Back-up Lamps, BTSI Solenoid
17	RADIO- 1	Radio (Ign, Accy), Upfitter Provision Relay
18	BRAKE	4WAL PCM, ABS, Cruise Control
19	RADIO-B	Radio (Battery), Power Antenna
20	TRANS	PRNDL, Automatic Transmission
21	SECURITY	Passlock
22	RR DEFOG	Rear Window Defog
23	Not Used	—
24	RR HVAC	RR HVAC Controls, HIGH, MED, LOW Relays
A	PWR ACCY	Power Door Lock, Six-Way Power Seat, Keyless Entry Illumination Module
B	PWR WDO	Power Windows

Engine Compartment Fuse Relay Center

The fuse block is on the driver’s side of the engine compartment at the rear.

Fuse name	Circuit protected
SPARE	Spare Fuse
A.I.R.	Air Pump
BLOWER	Front Blower Motor
ABS	Electronic Brake Control Module
IGN-B	Ignition Switch
IGN-A	Starter Relay, Ignition Switch
BATT	Instrument Panel Fuse Block
LIGHTING	Instrument Panel Fuse Block, Headlamp Switch
RH-HDLP	Right-hand Headlamp (Export Only)
LH-HDLP	Left-hand Headlamp (Export only)
RH-HIBM	Right-hand High-beam Headlamp (Export Only)
LH-HIBM	Left-hand High-beam Headlamp (Export only)
ETC	Electronic Throttle Control
RR BLOWER	Rear Auxiliary Blower
FUEL SOL	Fuel Solenoid
ENG-I	Heated O2 Sensors, Mass Air Flow Sensor, Evap Canister Purge Valve, Crankshaft Position Sensor, Secondary Air Injection Relay (Diesel), Water in Fuel Sensor (Diesel), Fuel Heater (Diesel), Glowplug Relay (Diesel), Wastegate Solenoid (Diesel)
ECM-I	Ignition Coil, Crankshaft Position Sensor, VCM, Fuel Injectors, Coil Driver
IGN-E	Air Conditioning Clutch Relay
SPARE	Spare Fuse
SPARE	Spare Fuse
SPARE	Spare Fuse
A/C	Air Conditioning Clutch Relay
HORN	Horn Relay, Underhood Lamp(s)
ECM-B	Fuel Pump Relay, VCM, PCM, Fuel Pump and Engine Oil Pressure Switch
SPARE	Spare Fuse
SPARE	Spare Fuse
AUX A	Upfitter Provisions
AUX B	Upfitter Provisions
A/C RELAY	Air Conditioning
HORN RELAY	Horn
A.I.R. RELAY	Air
FUEL PUMP RELAY	Fuel Pump
STARTER RELAY	Starter
ABS EXPORT RELAY	ABS Export

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Chevrolet Express (2000) – fuse box diagram

Year of production: 2000

Instrument Panel Fuse Block

The fuse block access door is on the driver’s side of the instrument panel below the
hood release lever.

Fuse position	Fuse name	Circuit protected
1	STOP	Stop/CHMSL, Stoplamps
2	HTD MIR	Electric Heated Mirrors
3	CTSY	Courtesy Lamps, Dome/RDG Lamps, Vanity Mirrors, Power Mirrors
4	GAUGES	IP Cluster, DRL Relay, DRL Module, HDLP Switch, Keyless Entry Illumination, Low Coolant Module, CHIME Module, DRAB Module
5	Hazard	Hazard Lamps/CHIME Module
6	CRUISE	Cruise Control
7	PWR AUX	Auxiliary Power Outlet, DLC
8	Crank	—
9	PARK LPS	License Plate Lamp, Parking Lamps, Taillamps, Front Sidemarkers, Glove Box Ashtray
10	AIR BAGS	Air Bags
11	WIPER	Wiper Motor, Washer Pump
12	HTR-A/C	A/C, A/C Blower, High Blower Relay, HTD Mirror
13	CIG LTR	Cigarette Lighter
14	ILLUM	IP Cluster, HVAC Controls, RR HVAC Controls, IP Switches, Radio Illumination, Door Switch Illumination
15	DRL	DRL Relay
16	TURN B/U	Front Turn, RR Turn, Back-up Lamps, BTSI Solenoid
17	RADIO- 1	Radio (Ign, Accy), Upfitter Provision Relay
18	BRAKE	4WAL PCM, ABS, Cruise Control
19	RADIO-B	Radio (Battery), Power Antenna
20	TRANS	PRNDL, Automatic Transmission
21	SECURITY	Passlock
22	RR DEFOG	Rear Window Defog
23	Not Used	—
24	RR HVAC	RR HVAC Controls, HIGH, MED, LOW Relays
A	PWR ACCY	Power Door Lock, Six-Way Power Seat, Keyless Entry Illumination Module
B	PWR WDO	Power Windows

Engine Compartment Fuse Relay Center

The fuse block is on the driver’s side of the engine compartment at the rear.

Fuse name	Circuit protected
BLOWER	Front Blower Motor
ABS	Electronic Brake Control Module
IGN-B	Starter Relay, Ignition Switch
IGN-A	Instrument Panel Fuse Block
BATT	Instrument Panel Fuse Block
LIGHTING	Instrument Panel Fuse Block, Headlamp Switch
RR BLOWER	Rear Auxiliary Blower Motor Relays
ENG- 1	Heated O2 Sensors, Mass Air Flow Sensor, EGR Valve Solenoid, Evap Canister Purge Valve, Crankshaft Position Sensor, Secondary Air Injection Relay (Diesel), Water in Fuel Sensor (Diesel), Fuel Heater (Diesel), Glowplug Relay (Diesel), Wastegate Solenoid (Diesel)
A/C	Air Conditioning Clutch Relay
SPARE	Spare Fuses
AUX A	Upfitter Provisions
AUX B	Upfitter Provisions
RH-HDLP	Right-hand Headlamp (Export Only)
RH-HIBM	Right-hand High-beam Headlamp (Export Only)
ECM-I	Ignition Coil, Crankshaft Position Sensor, VCM, Fuel Injectors, Coil Driver
HORN	Horn Relay, Underhood Lamp( s)
LH-HDLP	Left-hand Headlamp (Export Only)
LH-HIBM	Left-hand High-beam Headlamp (Export Only)
FUEL SOL	PCM, Fuel Solenoid Driver, Engine Shutoff Solenoid
IGN-E	Air Conditioning Clutch Relay
ECM-B	Fuel Pump Relay, VCM, PCM, Fuel Pump and Engine Oil Pressure Switch

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Chevrolet Express (1999) – fuse box diagram

Year of production: 1999

Instrument Panel Fuse Block

The fuse block access door is on the driver’s side of the instrument panel below the
hood release lever.

Fuse position	Fuse name	Circuit protected
1	STOP	Stop/CHMSL, Stoplamps
2	HTD MIR	Electric Heated Mirrors
3	CTSY	Courtesy Lamps, Dome/RDG Lamps, Vanity Mirrors, Power Mirrors
4	GAUGES	IP Cluster, DRL Relay, DRL Module, HDLP Switch, Keyless Entry Illumination, Low Coolant Module, CHIME Module, DRAB Module
5	Hazard	Hazard Lamps/CHIME Module
6	CRUISE	Cruise Control
7	PWR AUX	Auxiliary Power Outlet, DLC
8	Crank	—
9	PARK LPS	License Plate Lamp, Parking Lamps, Taillamps, Front Sidemarkers, Glove Box Ashtray
10	AIR BAGS	Air Bags
11	WIPER	Wiper Motor, Washer Pump
12	HTR-A/C	A/C, A/C Blower, High Blower Relay, HTD Mirror
13	CIG LTR	Cigarette Lighter
14	ILLUM	IP Cluster, HVAC Controls, RR HVAC Controls, IP Switches, Radio Illumination, Door Switch Illumination
15	DRL	DRL Relay
16	TURN B/U	Front Turn, RR Turn, Back-up Lamps, BTSI Solenoid
17	RADIO- 1	Radio (Ign, Accy), Upfitter Provision Relay
18	BRAKE	4WAL PCM, ABS, Cruise Control
19	RADIO-B	Radio (Battery), Power Antenna
20	TRANS	PRNDL, Automatic Transmission
21	SECURITY	Passlock
22	RR DEFOG	Rear Window Defog
23	Not Used	—
24	RR HVAC	RR HVAC Controls, HIGH, MED, LOW Relays
A	PWR ACCY	Power Door Lock, Six-Way Power Seat, Keyless Entry Illumination Module
B	PWR WDO	Power Windows

Engine Compartment Fuse Relay Center

The fuse block is on the driver’s side of the engine compartment at the rear.

Fuse name	Circuit protected
BLOWER	Front Blower Motor
ABS	Electronic Brake Control Module
IGN-B	Starter Relay, Ignition Switch
IGN-A	Instrument Panel Fuse Block
BATT	Instrument Panel Fuse Block
LIGHTING	Instrument Panel Fuse Block, Headlamp Switch
RR BLOWER	Rear Auxiliary Blower Motor Relays
ENG- 1	Heated 02 Sensors, Mass Air Flow Sensor, EGR Valve Solenoid, Evap Canister Purge Valve, Crankshaft Position Sensor, Secondary Air Injection Relay (Diesel), Water in Fuel Sensor (Diesel), Fuel Heater (Diesel), Glowplug Relay (Diesel), Wastegate Solenoid (Diesel)
A/C	Air Conditioning Clutch Relay
SPARE	Spare Fuses
AUX A	Upfitter Provisions
AUX B	Upfitter Provisions
RH-HDLP	Right-hand Headlamp (Export Only)
RH-HIBM	Right-hand High-beam Headlamp (Export Only)
ECM-I	Ignition Coil, Crankshaft Position Sensor, VCM, Fuel Injectors, Coil Driver
HORN	Horn Relay, Underhood Lamp( s)
LH-HDLP	Left-hand Headlamp (Export Only)
LH-HIBM	Left-hand High-beam Headlamp (Export Only)
FUEL SOL	PCM, Fuel Solenoid Driver, Engine Shutoff Solenoid
IGN-E	Air Conditioning Clutch Relay
ECM-B	Fuel Pump Relay, VCM, PCM, Fuel Pump and Engine Oil Pressure Switch

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Chevrolet Express (1998) – fuse box diagram

Year of production: 1998

Instrument Panel Fuse Block

The fuse block access door is on the driver’s side of the instrument panel below the
hood release lever.

Fuse position	Fuse name	Circuit protected
1	STOP	Stop/CHMSL, Stoplamps
2	HTD MIR	Electric Heated Mirrors
3	CTSY	Courtesy Lamps, Dome/RDG Lamps, Vanity Mirrors, Power Mirrors
4	GAUGES	IP Cluster, DRL Relay, DRL Module, HDLP Switch, Keyless Entry Illumination, Low Coolant Module, CHIME Module, DRAB Module
5	Hazard	Hazard Lamps/CHIME Module
6	CRUISE	Cruise Control
7	PWR AUX	Auxiliary Power Outlet, DLC
8	Crank	—
9	PARK LPS	License Plate Lamp, Parking Lamps, Taillamps, Front Sidemarkers, Glove Box Ashtray
10	AIR BAGS	Air Bags
11	WIPER	Wiper Motor, Washer Pump
12	HTR-A/C	A/C, A/C Blower, High Blower Relay, HTD Mirror
13	CIG LTR	Cigarette Lighter
14	ILLUM	IP Cluster, HVAC Controls, RR HVAC Controls, IP Switches, Radio Illumination, Door Switch Illumination
15	DRL	DRL Relay
16	TURN B/U	Front Turn, RR Turn, Back-up Lamps, BTSI Solenoid
17	RADIO- 1	Radio (Ign, Accy), Upfitter Provision Relay
18	BRAKE	4WAL PCM, ABS, Cruise Control
19	RADIO-B	Radio (Battery), Power Antenna
20	TRANS	PRNDL, Automatic Transmission
21	STRG/SECURITY	EVO Steering, Passlock
22	RR DEFOG	Rear Window Defog
23	Not Used	—
24	RR HVAC	RR HVAC Controls, HIGH, MED, LOW Relays
A	PWR ACCY	Power Door Lock, Six-Way Power Seat, Keyless Entry Illumination Module
B	PWR WDO	Power Windows

Engine Compartment Fuse Relay Center

The fuse block is on the driver’s side of the engine compartment at the rear.

Fuse name	Circuit protected
BLOWER	Front Blower Motor
ABS	Electronic Brake Control Module
IGN-B	Starter Relay, Ignition Switch
IGN-A	Instrument Panel Fuse Block
BATT	Instrument Panel Fuse Block
LIGHTING	Instrument Panel Fuse Block, Headlamp Switch
RR BLOWER	Rear Auxiliary Blower Motor Relays
ENG- 1	Heated 02 Sensors, Mass Air Flow Sensor, EGR Valve Solenoid, Evap Canister Purge Valve, Crankshaft Position Sensor, Secondary Air Injection Relay (Diesel), Water in Fuel Sensor (Diesel), Fuel Heater (Diesel), Glowplug Relay (Diesel), Wastegate Solenoid (Diesel)
A/C	Air Conditioning Clutch Relay
SPARE	Spare Fuses
AUX A	Upfitter Provisions
AUX B	Upfitter Provisions
RH-HDLP	Right-hand Headlamp (Export Only)
RH-HIBM	Right-hand High-beam Headlamp (Export Only)
ECM-I	Ignition Coil, Crankshaft Position Sensor, VCM, Fuel Injectors, Coil Driver
HORN	Horn Relay, Underhood Lamp( s)
LH-HDLP	Left-hand Headlamp (Export Only)
LH-HIBM	Left-hand High-beam Headlamp (Export Only)
FUEL SOL	PCM, Fuel Solenoid Driver, Engine Shutoff Solenoid
IGN-E	Air Conditioning Clutch Relay
ECM-B	Fuel Pump Relay, VCM, PCM, Fuel Pump and Engine Oil Pressure Switch

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.