2007 CHEVROLET EXPRESS PASSANGER wiring

Electrical System
Add-On Electrical Equipment
Notice:Do not add anything electrical to your
vehicle unless you check with your dealer
rst. Some electrical equipment can damage
your vehicle and the damage would not
be covered by your warranty. Some add-on
electrical equipment can keep other
components from working as they should.
Your vehicle has an air bag system. Before
attempting to add anything electrical to your
vehicle, seeServicing Your Airbag-Equipped
Vehicle on page 96.
Headlamp Wiring
The headlamp wiring is protected by fuses in the
engine compartment fuse block. An electrical
overload will cause the lamps to flicker on and off,
or in some cases to remain off. If this happens,
have your headlamp wiring checked right away.
Windshield Wiper Fuses
The windshield wiper motor is protected by a
circuit breaker and a fuse. If the motor overheats
due to heavy snow, etc., the wiper will stop
until the motor cools. Although the circuit is
protected from electrical overload, overload due
to heavy snow, etc., may cause wiper linkage
damage. Always clear ice and heavy snow from
the windshield before using the windshield wipers.
If the overload is caused by some electrical
problem and not snow, etc., be sure to get it fixed.
Fuses and Circuit Breakers
The wiring circuits in your vehicle are protected
from short circuits by a combination of fuses
and circuit breakers. This greatly reduces
the chance of fires caused by electrical problems.
Look at the silver-colored band inside the fuse.
If the band is broken or melted, replace the fuse.
Be sure you replace a bad fuse with a new
one of the identical size and rating.
393

Fuse Usage
5 Back-up Lamps Trailer Wiring
6 Ignition 0
7 Stoplamp
8 Rear Defogger/Heated Mirror
9Right Daytime Running
Lamp/Turn Signal
10Left 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 EFuse Usage
23 Engine 1
24Truck Body Control Module
Ignition 1
25 Spare (Gas), Fuel Heater (Diesel)
26 Inside Rearview Mirror
27 Crankcase
28Brake Transmission Shift
Interlock System
29 Auxiliary Power Outlets
30 Cigarette Lighter
31 Instrument Panel Cluster
32 Air Conditioning
33Spare (Gas), Engine Control
Module (Diesel)
34Canister Vent Solenoid (Gas),
Rear Fog Lamps (Diesel)
35 SPARE
36Brake Transmission Shift
Interlock, Vehicle Back-Up
37 Airbag
396

Driving
At Night................................................... 244
City.......................................................... 249
Defensive................................................. 228
Drunken................................................... 229
Freeway................................................... 250
Hill and Mountain Roads.......................... 254
In Rain and on Wet Roads...................... 246
Rocking Your Vehicle to Get it Out.......... 260
Winter...................................................... 256
Dual Tire Operation..................................... 355
E
EDR ............................................................ 441
Electrical System
Add-On Equipment................................... 393
Engine Compartment Fuse Block............. 395
Floor Console Fuse Block........................ 394
Fuses and Circuit Breakers...................... 393
Headlamp Wiring..................................... 393
Windshield Wiper Fuses........................... 393
Engine
Air Cleaner/Filter...................................... 308
Change Engine Oil Light.......................... 183
Check and Service Engine Soon Light..... 178
Coolant.................................................... 312Engine (cont.)
Coolant Heater......................................... 123
Coolant Temperature Gage...................... 178
Drive Belt Routing.................................... 418
Engine Compartment Overview................ 302
Exhaust................................................... 132
Fan Noise................................................ 323
Fuel Regulator......................................... 123
Oil ........................................................... 303
Oil Life System........................................ 306
Overheating............................................. 315
Reduced Power Light............................... 184
Running While Parked............................. 133
Starting.................................................... 122
Entry Lighting.............................................. 158
Event Data Recorders................................. 442
Exit Lighting................................................ 158
Extender, Safety Belt..................................... 40
Exterior Lamps............................................ 155
F
Filter
Engine Air Cleaner................................... 308
Finish Damage............................................ 389
Fixed Mast Antenna.................................... 226
Flashers, Hazard Warning........................... 146
449

Flash-to-Pass.............................................. 149
Flat Tire...................................................... 365
Flat Tire, Changing...................................... 366
Flat Tire, Storing......................................... 380
Fluid
Automatic Transmission............................ 309
Power Steering........................................ 323
Windshield Washer.................................. 324
Front Axle................................................... 338
Fuel............................................................ 292
Additives.................................................. 294
California Fuel.......................................... 293
E85 (85% Ethanol)................................... 295
Filling a Portable Fuel Container.............. 299
Filling Your Tank...................................... 297
Fuels in Foreign Countries....................... 296
Gage....................................................... 186
Gasoline Octane...................................... 293
Gasoline Specifications............................ 293
Regulator................................................. 123
Fuses
Engine Compartment Fuse Block............. 395
Floor Console Fuse Block........................ 394
Fuses and Circuit Breakers...................... 393
Windshield Wiper..................................... 393G
Gage
Check Gages Warning Light..................... 185
Engine Coolant Temperature.................... 178
Fuel......................................................... 186
Oil Pressure............................................. 182
Speedometer........................................... 168
Voltmeter Gage........................................ 175
Gasoline
Octane..................................................... 293
Specifications........................................... 293
GM Mobility Reimbursement Program.......... 429
H
Hazard Warning Flashers............................ 146
Headlamp Wiring......................................... 393
Headlamps.................................................. 340
Bulb Replacement.................................... 340
Daytime Running Lamps.......................... 156
Exterior Lamps......................................... 155
Flash-to-Pass........................................... 149
Front Turn Signal, Sidemarker and
Parking Lamps..................................... 342
450