2005 PONTIAC GRAND PRIX Owners Manual

Electrical System
Add-On Electrical Equipment
Notice:Don’t add anything electrical to your vehicle
unless you check with your dealer rst. Some
electrical equipment can damage your vehicle and
the damage wouldn’t be covered by your warranty.
Some add-on electrical equipment can keep other
components from working as they should.
Your vehicle has an airbag system. Before attempting
to add anything electrical to your vehicle, seeServicing
Your Airbag-Equipped Vehicle on page 1-56.
Headlamp Wiring
The headlamp circuit is protected by individual fuses in
the underhood fuse block. An electrical overload will
cause the fuse to blow. If this happens, have the
headlamp system 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.
If the overload is caused by some electrical problem,
have it xed.
Power Windows and Other Power
Options
Circuit breakers in the fuse panel protect the power
windows and other power accessories. When the current
load is too heavy, the circuit breaker opens and
closes, protecting the circuit until the problem is xed.
Fuses and Circuit Breakers
The wiring circuits in the vehicle are protected from short
circuits by a combination of fuses, circuit breakers and
fusible thermal links in the wiring itself. This greatly
reduces the chance of res 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 to
replace a bad fuse with a new one of the identical
size and rating. Spare fuses and a fuse puller are
located in the underhood fuse block. SeeUnderhood
Fuse Blocklater in this section.
5-103

Instrument Panel Fuse Block
Some fuses are in a fuse
block located on the end
of the instrument panel on
the passenger side.
To get to the fuse block lift up on the side panel. A fuse
usage chart is on the inside of this panel.
Fuse Usage
RAP Retained Accessory Power
SUN ROOF Sunroof
CRUISE SW Cruise Switch
PK LP Parking Lamps
RR DEFOG Rear Window Defogger
DR LK/TRUNK Door Lock/Trunk
ONSTAR/ALDL Onstar
®/Diagnostic Link
5-104

Fuse Usage
CANISTER Fuel Tank Solenoid Canister
PK LAMPS Parking Lamps
RADIO/AMP Radio Amplier
RFA/MODRemote Function Activator
(Remote Keyless Entry)
DISPLAYSInstrument Panel Displays/Head-Up
Display (HUD), Driver Information
Center (DIC)
INT LIGHT Interior Lamps
HVAC Climate Controls
CHMSL/BKUPCenter High Mounted Stop
Lamp/Back-Up Lamps
PWR WDO Power Windows
SPRIN G
COIL 2Steering Wheel Control Switches
PWR SEAT Power Seat
TURN/HAZTurn Signals/Hazard Warning
Lamps
PWR MIRS Power Mirrors
HTD SEAT Heated Seat
To reinstall the end panel, position the lower section
with the edge of the instrument panel, and press
the sides of the panel until it snaps into place.Underhood Fuse Block
Some fuses are located in
a fuse block in the engine
compartment on the
passenger’s side.
A fuse chart is on the inside of the cover. To take the
cover off, press the tab at the bottom of the cover
and pull.
5-105

Fuses Usage
1 Left Front High-Beam Headlamp
2 Right Front High-Beam Headlamp
3 Left Front Low-Beam Headlamp
4 Right Front Low-Beam Headlamp
5 Windshield Wipers/Washer
6 Washer/Remote Vehicle Current
Fuses Usage
7 Fog Lamps
9 SIR
10 Auxiliary Power
11 Horn
12 Emission
13 A/C Clutch
14 Oxygen Sensor
15 Power Control Module
16Power Control Module/Electronic
Throttle Control
17 Electronic Throttle Control
18 Display
19 Anti-Lock Brake Solenoid
20 Fuel Injection
21 Transmission Solenoid
22 Fuel Pump
23 Anti-Lock Brakes
5-106

Fuses Usage
24 Electronic Ignition
26 Battery Main 1
27 Battery Main 2
28 Battery Main 3
29 Fan 1
30 Battery Main 4
31 Anti-Lock Brake Motor
32 Fan 2
33 Starter
56 Air Pump
Relays Usage
34 High-Beam Headlamps
35 Low-Beam Headlamps
36 Fog Lamps
37 Ignition 1
38 Air Conditioner Compressor
Relays Usage
39 Horn
40 Powertrain
41 Fuel Pump
42 Fan 1
43 Fan 3
44 Windshield Wiper/High
45 Windshield Wiper
46 Fan 2
48 Crank
49 Spare Fuse
50 Spare Fuse
51 Spare Fuse
52 Blank
53 Blank
54 Blank
55 Fuse Puller
§A/C Clutch
5-107

Capacities and Specications
The following approximate capacities are given in English and metric conversions. SeeRecommended Fluids and
Lubricants on page 6-12for more information.
Capacities and Specications
ApplicationCapacities
English Metric
Air Conditioning Refrigerant R134a 2.3 lbs 1.0 kg
Automatic Transaxle 7.4 quarts 7.0 L
Cooling System Including Reservoir
3800 V6 Engine
3800 V6 Supercharged Engine11.2 quarts
11.2 quarts10.6 L
10.6 L
Engine Oil with Filter 4.3 quarts 4.1 L
Fuel Tank 17.0 gallons 64.0 L
Wheel Nut Torque 100 ft lb 140Y
All capacities are approximate. When adding uid, be sure to ll to the appropriate level, as recommended in this
manual. Recheck uid level after lling.
5-108

Engine Specications
Engine VIN Code Transaxle Spark Plug Gap
3800 V6
231 CID (3.8L L26)2 Automatic .060 inches (1.52 mm)
3800 V6 Supercharged
231 CID (3.8L L32)4 Automatic .060 inches (1.52 mm)
5-109

✍NOTES
5-110