2004 CADILLAC CTS ignition

Jump Starting
If your battery has run down, you may want to use
another vehicle and some jumper cables to start your
vehicle. Be sure to follow the steps below to do it safely.
{CAUTION:
Batteries can hurt you. They can be
dangerous because:
They contain acid that can burn you.
They contain gas that can explode or ignite.
They contain enough electricity to burn you.
If you do not follow these steps exactly, some or
all of these things can hurt you.
Notice:Ignoring these steps could result in costly
damage to your vehicle that would not be covered
by your warranty.
Trying to start your vehicle by pushing or pulling it
will not work, and it could damage your vehicle.1. Check the other vehicle. It must have a 12-volt
battery with a negative ground system.
Notice:If the other vehicle’s system is not a 12-volt
system with a negative ground, both vehicles can
be damaged. Only use vehicles with 12-volt systems
with negative grounds to jump start your vehicle.
2. Get the vehicles close enough so the jumper cables
can reach, but be sure the vehicles aren’t touching
each other. If they are, it could cause a ground
connection you don’t want. You wouldn’t be able to
start your vehicle and the bad grounding could
damage the electrical systems.
To avoid the possibility of the vehicles rolling, set
the parking brake rmly on both vehicles involved
in the jump start procedure. Put an automatic
transmission in PARK (P) or a manual transmission
in NEUTRAL before setting the parking brake.
Notice:If you leave your radio or other accessories
on during the jump starting procedure, they could
be damaged. The repairs would not be covered
by your warranty. Always turn off your radio and
other accessories when jump starting your vehicle.
3. Turn off the ignition on both vehicles. Unplug
unnecessary accessories plugged into the cigarette
lighter or in the accessory power outlets. Turn off
the radio and all lamps that aren’t needed. This will
avoid sparks and help save both batteries. And it
could save your radio!
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Replacement Bulbs
For any bulb not listed here contact your dealer.
Exterior Lamp Bulb Number
Back-Up Lamps 3157K
Fog Lamps 9145
Front and Rear Turn
Signal Lamps3157K
License Plate Lamps W5WLL
Rear Sidemarker Lamps 3157K
Stoplamps 3157K
Taillamps 3157K
Windshield Wiper
Blade Replacement
Windshield wiper blades should be inspected at least
twice a year for wear or cracking. SeeOwner Checks
and Services on page 6-9.
It’s a good idea to clean or replace the wiper blade
assembly on a regular basis or when worn. For proper
windshield wiper blade length and type, seeNormal
Maintenance Replacement Parts on page 6-15.
To replace the wiper blade assembly, do the following:
1. Turn the ignition to ON with the engine off.
2. Turn on the windshield wipers and turn them off
again when the wipers are in the out-wipe position.
The driver’s side blade will be straight up and
down on the windshield.
3. Pull the windshield wiper assembly away from
the windshield.
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Relays Usage
HORN RELAY
MICROHorn
HI BEAM
RELAY MICROHigh-Beam Headlamps
DRL RELAY
MICRO-OPTDaytime Running Lamps
LO BEAM
RELAY/HID
MINI-OPTLow-Beam HID Headlamps
HDLP WASH
RELAY MINI-OPTHeadlamp Washer Motor
SPARE Not Used
BLOWER
RELAY MINIFront Blower
FOG LAMP
RELAY MICROFog Lamps
MAIN RELAY
MICROPowertrain/ECM
STARTER
RELAY MINIStarter Solenoid
CMP CLU
RELAY MICROCompressor Clutch
IGN-1 RELAY
MICROIgnition Switch (ON)Wiring
HarnessesUsage
BODY W/H Wiring Harness Connection
I/P W/H Wiring Harness Connection
ENG W/H Engine Wiring Harness Connection
FORWARD
LAMPForward Lamp Wiring Harness
Connection
J Cases Usage
R REARRRPDB (Passenger’s Side Rear
Power Distribution Box)
R REARRRPDB (Passenger’s Side Rear
Power Distribution Box)
L REARLRPDB (Driver’s Side Rear Power
Distribution Box)
L REARLRPDB (Driver’s Side Rear Power
Distribution Box)
HI FAN High Cooling Fan Motor
LO FAN Low Cooling Fan Motor
BLOWER PWM Fan Motor Assembly
STARTER Starter Solenoid
ABS Anti-Lock Brake System
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Fuses Usage
RT PARKPassenger’s Side Taillamp
Assembly, Front Sidemarker and
Front Parking Lamp Assembly
HORN Dual Horn Assembly
LT HI BEAM Driver’s Side High-Beam Headlamp
LT LOW BEAM Driver’s Side Low-Beam Headlamp
RT LOW BEAMPassenger’s Side Low-Beam
Headlamp
RT HI BEAMPassenger’s Side High-Beam
Headlamp
SPARE Not Used
SPARE Not Used
THEFTECM (Electronic Control Module),
TCM (Transmission Control Module),
PASS-Key
®III+ Module
LT PARKDriver’s Side Taillamp Assembly,
Front Sidemarker and Front Parking
Lamp Assembly
DIMMINGRear License Plate Assembly,
Dash Integrated Module (DIM)
DIM/ALDLDIM, ALDL (Assembly Line
Data Link)
Fuses Usage
FLASHER Turn Signal/Hazard Flasher Module
ECM Electronic Control Module
STRG CTLSSteering Wheel Control Pad,
Headlamp Switch
HTR VLV/
CLTCHHeater Valve, Clutch Switch
(Normal Closed), Clutch Switch
(Normal Open), Jumper to Start
Relay Coil for Automatic
Transmission
WASH NOZDriver’s and Passenger’s Side
Heated Washer Nozzles
PRE O2/CAMDriver’s & Passenger’s Side Oxygen
Sensors, Transmission Output
Speed Sensor, CAM Phaser
TCM/IPCTCM, ECM and IPC
(Instrument Panel Cluster)
SPARE Not Used
IGN MOD/MAF Front Bank Ignition Modules
ELEC PRNDL Electronic PRNDL
SPARE Not Used
SPARE Not Used
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Fuses Usage
IGN SWIgnition Switch (Power to IGN-3
and CRANK)
VOLT CHECK DIM (Dash Integration Module)
ECM/TCMTCM (Transmission Control Module),
ECM (Electronic Control Module),
IPC (Instrument Panel Cluster),
PASS-Key
®III+ Module
WPR MOD Windshield Wiper Module Assembly
ODD INJ/
COILSOdd Ignition Coils, Fuel Injectors,
Odd Injection Coils
COMP CLUTCH Compressor Clutch
WPR SW Windshield Wiper/Washer Switch
FOG LAMP Fog Lamps
OUTLETCenter Console Accessory
Power Outlet
POST 02Driver’s and Passenger’s Side
Oxygen Sensors, LRPDB
(Pusher Cooling Fan Relay)
Fuses Usage
I/P OUTLETInstrument Panel Accessory
Power Outlet
CCP Climate Control
EVEN INJ/
COILSEven Injection Coils
SPARE Not Used
SPARE Not Used
SPARE Not Used
Circuit
BreakersUsage
HDLP WASH
C/B-OPTHeadlamp Washer Motor
5-104

Rear Underseat Fuse Block
(Passenger’s Side)
The passenger’s side rear fuse block is located under
the rear seat on the passenger’s side of the vehicle.
The rear seat cushion must be removed to access the
rear fuse block. See “Removing the Rear Seat
Cushion” listed previously.
To access the fuse block, push in the two tabs located
at each end of the fuse block cover. Then lift the
cover off.
Relays Usage
RAP RELAY
MINIRetained Accessory Power
SPARE Not Used
REAR DEFOG
RELAY MINIRear Window Defogger
SPARE Not Used
AFTER BOIL
MICROAfterboil Heater Pump
INT LAMP
RELAY MICROHush Panel Lamps, Puddle Lamps,
Overhead Courtesy Lamp Assembly
IGN 1 RELAY
MICROIgnition Switch
REAR FOG
LAMP
RLY MICRORear Fog Lamps (Export Only)
FUEL PUMP
MOTOR
RLY MICROFuel Pump Motor
5-109

Fuses Usage
INTERIOR
LAMPHush Panel Lamps, Puddle Lamps,
Overhead Courtesy Lamp Assembly
PSGR DR MOD Right Front Passenger Door Module
RIM/IGN SWRIM (Rear Integration Module),
Ignition Switch, Key Lock Cylinder
REAR
FOG LAMPRear Fog Lamps (Export Only)
SPARE Not Used
TV/VICSTV Tuner Assembly (Export Only),
VICS (Vehicle Information
Communication System) Module
SPARE Not Used
TRUNK DIODE Trunk Lamp
POWER
SOUNDERPower Sounder, Inclination Sensor
SPARE Not Used
CANISTER
VENTCanister Vent Solenoid
FUEL
PUMP MTRFuel Pump MotorFuses Usage
AFTERBOIL Afterboil Heater Pump
R FRT HTD
SEAT MODPassenger’s Side Heated
Seat Module
SPARE Not Used
AIR BAG SDM (Sensing Diagnostic Module)
RIMISRVM (Inside Rearview Mirror),
Power Sounder, RIM, Passive
Trunk Release Sensor
ABS Anti-Lock Brake System
SPARE Not Used
J Cases Usage
REAR DEFOG Rear Window Defogger Element
SUNROOF MOD Power Sunroof Module
Circuit
BreakersUsage
DR MOD
PWR C/BDoor Modules
5-110

3. On automatic transmission vehicles, try to start the
engine in each gear. The starter should work only
in PARK (P) or NEUTRAL (N). If the starter works in
any other position, contact your GM Goodwrench
dealer for service.
On manual transmission vehicles, put the shift lever
in NEUTRAL (N), push the clutch pedal down
halfway and try to start the engine. The starter
should work only when the clutch pedal is pushed
down all the way to the oor. If the starter works
when the clutch is not pushed all the way down,
contact your GM Goodwrench dealer for service.
Automatic Transmission Shift Lock Control
System Check
{CAUTION:
When you are doing this inspection, the
vehicle could move suddenly. If the vehicle
moves, you or others could be injured.
1. Before you start, be sure you have enough
room around the vehicle. It should be parked on a
level surface.2. Firmly apply the parking brake. SeeParking Brake
on page 2-35if necessary.
Be ready to apply the regular brake immediately if
the vehicle begins to move.
3. With the engine off, turn the ignition to ON, but do
not start the engine. Without applying the regular
brake, try to move the shift lever out of PARK (P)
with normal effort. If the shift lever moves out
of PARK (P), contact your GM Goodwrench dealer
for service.
Ignition Transmission Lock Check
While parked, and with the parking brake set, try to turn
the ignition to OFF in each shift lever position.
With an automatic transmission, the ignition should
turn to OFF only when the shift lever is in PARK (P).
The key should come out only in OFF.
With a manual transmission, the ignition should turn
to OFF only when the key release button is pressed.
The key should come out only in OFF.
Contact your GM Goodwrench dealer if service
is required.
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