2007 CADILLAC CTS V high beam

Headlamp Aiming
The vehicle has a visual optical headlamp aiming
system. The aim has been preset at the factory
and should need no further adjustment.
However, if the vehicle is damaged in an accident,
the headlamp aim may be affected and adjustment
may be necessary.
If oncoming vehicles ash their high beams at
you, this may also mean the vertical aim needs to
be adjusted.
It is recommended that the vehicle is taken to your
dealer/retailer for service if the headlamps need to
be re-aimed. It is possible however, to re-aim the
headlamps as described in the following procedure.The vehicle should be properly prepared as follows:The vehicle should be placed so the headlamps
are 25 ft. (7.6 m) from a light colored wall.
The vehicle must have all four tires on a level
surface which is level all the way to the wall.
The vehicle should be placed so it is
perpendicular to the wall.
The vehicle should not have any snow, ice, or
mud on it.
The vehicle should be fully assembled and all
other work stopped while headlamp aiming is
being performed.
The vehicle should be normally loaded with a
full tank of fuel and one person or 160 lbs
(75 kg) sitting on the driver’s seat.
Tires should be properly inated.
The spare tire is in its original location in the
vehicle.
383

Headlamp aiming is done with the vehicle’s
low-beam headlamps. The high-beam headlamps
will be correctly aimed if the low-beam headlamps
are aimed properly.
To adjust the vertical aim, do the following:
1. Open the hood. SeeHood Release on
page 341for more information.
2. Locate the aim dot on the lens of the
low-beam headlamp.
3. Measure the distance from the ground to the
aim dot on the low-beam headlamp. Record
the distance.4. At the wall measure from the ground
upward (A) to the recorded distance
from Step 3 and mark it.
5. Draw or tape a horizontal line (B) the width of
the vehicle at the wall where it was marked it
Step 4.
Notice:Do not cover a headlamp to improve
beam cut-off when aiming. Covering a
headlamp may cause excessive heat build-up
which may cause damage to the headlamp.
6. Turn on the low-beam headlamps and place a
piece of cardboard or equivalent in front of the
headlamp not being aimed. This should
allow only the beam of light from the headlamp
being aimed to be seen on the at surface.
384

Bulb Replacement
For the proper type of replacement bulbs, see
Replacement Bulbs on page 389.
For any bulb changing procedure not listed in this
section, contact your dealer.
High Intensity Discharge (HID)
Lighting
{CAUTION:
The low beam high intensity discharge
lighting system operates at a very high
voltage. If you try to service any of the
system components, you could be
seriously injured. Have your dealer or a
qualied technician service them.
Your vehicle has HID headlamps. After your
vehicle’s HID headlamp bulb has been replaced,
you may notice that the beam is a slightly different
shade than it was originally. This is normal.
Halogen Bulbs
{CAUTION:
Halogen bulbs have pressurized gas
inside and can burst if you drop or
scratch the bulb. You or others could be
injured. Be sure to read and follow the
instructions on the bulb package.
386

Relays Usage
LO SPEED
FAN
RELAY MINILow Speed Fan Motor
HI SPEED FAN
RELAY MINIHigh Speed Fan Motor
ACCESSORY
RELAY MINIWipe-Wash
S/P FAN
RELAY MINISeries/Parallel Fan
PARK LAMP
RELAY MICROParking Lamps
Relays Usage
HORN RELAY
MICROHorn
HI BEAM
RELAY MICROHigh-Beam Headlamps
DRL RELAY
MICRO-OPTDaytime Running Lamps
LO BEAM
RELAY/HID
MINI-OPTLow-Beam Headlamps
HDLP WASH
RELAY
MINI-OPTHeadlamp Washer Motor
SPARE Not Used
BLOWER
RELAY MINIFront Blower
FOG LAMP
RELAY MICROFog Lamps
MAIN RELAY
MICROPowertrain/Engine Control
Module (ECM)
STARTER
RELAY MINIStarter Solenoid
CMP CLU
RELAY MICROCompressor Clutch
IGN-1 RELAY
MICROIgnition Switch (ON)
448

Wiring
HarnessesUsage
BODY W/H Wiring Harness Connection
BODY W/H Wiring Harness Connection
ENG W/H Engine 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
Fuses Usage
RT PARKPassenger’s Side Taillamp
Assembly, Front Sidemarker and
Front Parking Lamp Assembly
HORN Dual Horn Assembly
Fuses Usage
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
TOSManual Transmission Output Speed
Sensor
SPARE Not Used
THEFTECM (Engine 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)
FLASHER Turn Signal/Hazard Flasher Module
ECM Electronic Control Module
STRG CTLSTurn Signal Switch, Cruise Control
Switch
HTR VLV/
CLTCHClutch Switch (Normal Closed),
Clutch Switch (Normal Open),
Jumper to Start Relay Coil for
Automatic Transmission
449

H
Hazard Warning Flashers............................ 168
Head Restraints............................................ 17
Headlamp
Aiming..................................................... 383
Headlamps.................................................. 180
Bulb Replacement.................................... 386
Daytime Running Lamps.......................... 181
Flash-to-Pass........................................... 172
Front Turn Signal and Fog Lamps............ 387
Halogen Bulbs......................................... 386
High Intensity Discharge (HID) Lighting.... 386
High/Low Beam Changer......................... 172
On Reminder........................................... 181
Washer.................................................... 175
Wiper Activated........................................ 180
Heated Seats................................................ 10
Heater......................................................... 189
Highbeam On Light..................................... 214
High-Speed Operation, Tires........................ 404
Highway Hypnosis....................................... 313
Hill and Mountain Roads............................. 314Hood
Checking Things Under............................ 340
Release................................................... 341
Horn............................................................ 168
Hot Coolant Temperature Warning
Message.................................................. 219
How to Use This Manual................................ 4
How to Wear Safety Belts Properly............... 25
Hydraulic Clutch.......................................... 356
I
Ignition Positions......................................... 117
Immobilizer.................................................. 113
Immobilizer Operation.................................. 114
Infants and Young Children, Restraints.......... 45
Ination - Tire Pressure............................... 402
Instrument Panel
Overview.................................................. 166
Instrument Panel (I/P)
Brightness................................................ 184
Cluster..................................................... 198
509

J
Jump Starting.............................................. 376
K
Keyless Entry System................................... 96
Keys............................................................. 95
L
Labeling, Tire Sidewall................................. 394
Lamps
Exterior Lighting Battery Saver................. 183
Reading................................................... 185
LATCH System
Child Restraints......................................... 55
Lifting Your Vehicle, Tires............................ 418
Light
Airbag Readiness..................................... 201
Anti-Lock Brake System Warning............. 206
Brake System Warning............................. 205
Charging System..................................... 204
Cruise Control.......................................... 214
Engine Coolant Temperature Warning....... 207
Fog Lamp................................................ 213
Highbeam On.......................................... 214Light (cont.)
Lights On Reminder................................. 213
Malfunction Indicator................................ 209
Oil Pressure............................................. 212
Passenger Airbag Status Indicator............ 202
Safety Belt Reminder............................... 201
Security................................................... 213
Sport Mode.............................................. 213
TCS Warning Light.................................. 206
Tire Pressure........................................... 208
Traction Control System (TCS)
Warning................................................ 206
Lighting
Entry........................................................ 184
Parade Dimming...................................... 185
Limited-Slip Rear Axle................................. 297
Loading Your Vehicle................................... 321
Lockout Protection....................................... 104
Locks
Central Door Unlocking System................ 101
Delayed Locking...................................... 102
Door........................................................ 100
Lockout Protection................................... 104
Power Door............................................. 101
Programmable Automatic Door Locks....... 102
Rear Door Security Locks........................ 103
510