ignition CADILLAC CTS 2012 2.G Owners Manual

Black plate (44,1)Cadillac CTS/CTS-V Owner Manual (Include Mex) - 2012
10-44 Vehicle Care
RelaysUsage
12 Horn
20 Headlamp Washer
(HID Only)
21 Cooling Fan
(Series/Parallel)
32 Air Conditioning
Compressor Clutch
39 Windshield
Washer Pump
42 Right Daytime
Running Lamp,
Trailer Turn Signal
44 Low‐Beam
(non‐HID), Left
Daytime Running
Lamps (HID), Left
Trailer Turn Signal
(Export Only)
45 Front Fog Lamps
(HID Only)
48 High‐Beam
Headlamps Relays
Usage
49 Daytime Running
Lamps (Non‐HID),
Low‐Beam
Headlamps (HID)
53 Not Used
63 Main Ignition
66 Windshield Wipers
67 Powertrain
68 Windshield Wipers
High Speed
Engine Compartment
Fuse Block (CTS V Coupe
and Sedan)
This fuse block is on the left side of
the engine compartment.
Lift the fuse block cover to access
the fuses.
The vehicle may not be equipped
with all of the fuses and relays
shown.
Notice:
Spilling liquid on any
electrical component on the
vehicle may damage it. Always
keep the covers on any electrical
component.

Black plate (46,1)Cadillac CTS/CTS-V Owner Manual (Include Mex) - 2012
10-46 Vehicle Care
Mini‐Fuses Usage43 Left Daytime
Running
Lamps (HID)
46 Left High‐Beam
Headlamp
47 Right High‐Beam
Headlamp
50 Right Daytime
Running Lamp,
Windshield
Washer Pump
51 Airbag System
Ignition Switch
52 Engine Control
Module Ignition,
Transmission
Control Module
Ignition
54 Power Moding
(Immobilizer
Module, Ignition
Switch) Mini‐Fuses Usage
55 Intercooler Pump
56 Windshield Wipers
57 Right Low‐Beam
(HID Only)
58 Left Low‐Beam
(HID Only)
59 Right Daytime
Running Lamp
(HID Only)
60 Instrument Panel
Auxiliary Power
Outlet
61 Air Quality Sensor,
Inside Rear View
Mirror, Rear
Camera
62 Ignition
64 Steering Wheel
Illumination
65 Front Fog Lamps
(HID Only) Mini‐Fuses Usage
69 Body Control
Module 6, Body
Control Module 7
70 Emissions 1
71 Even Ignition Coils
72 Odd Ignition Coils
73 Emissions 2
74 Engine Control
Module
75 Not Used
76 Spare
77 Spare
78 Spare
79 Spare
80 Spare
81 Spare

Black plate (47,1)Cadillac CTS/CTS-V Owner Manual (Include Mex) - 2012
Vehicle Care 10-47
J-CaseFuses Usage
6 Cooling Fan 2
7 Cooling Fan 1
8 Starter
9 Not Used
10 Antilock Brake
System Motor
13 Not Used
14 Electric Parking
Brake
15 Not Used
16 Not Used
17 Blower Motor
18 Rear Window
Defogger
37 Magnetic Ride/
Suspension Control Relays Usage
1 Cooling Fan 2
2 Cooling Fan 1
3 Starter
4 Rear Window
Defogger
5 Instrument Panel
Auxiliary Power
Outlet
12 Horn
20 Headlamp Washer
(HID Only)
21 Cooling Fan (Series/
Parallel)
32 Air Conditioning
Compressor Clutch
39 Windshield
Washer Pump
42 Right Daytime
Running Lamp
44 Left Daytime
Running Lamp (HID) Relays Usage
45 Front Fog Lamps
(HID Only)
48 High‐Beam
Headlamps
49 Low‐Beam
Headlamps (HID)
53 Not Used
63 Main Ignition
66 Windshield Wipers
67 Powertrain
68 Windshield Wipers
High Speed
Engine Compartment
Fuse Block (CTS Wagon)
This fuse block is on the left side of
the engine compartment.

Black plate (49,1)Cadillac CTS/CTS-V Owner Manual (Include Mex) - 2012
Vehicle Care 10-49
Mini‐Fuses Usage27 Body Control
Module 4
28 Navigation Motor
29 All-Wheel Drive
30 Transmission
Control Module
Battery
31 Horn
33 Left Low‐Beam
Headlamp
(Domestic
Non‐HID Only)
34 Pedestrian
Protection System
(Export Only)
35 Body Control
Module 3
36 Body Control
Module 2
38 Headlamp Washer
(HID Only) Mini‐Fuses Usage
40 Right Low‐Beam
Headlamp
(Domestic
Non‐HID Only)
41 Air Conditioning
Compressor Clutch
43 Low‐Beam Daytime
Running Lamps
(non‐HID), Left
Daytime Running
Lamps (HID), Left
Trailer Turn Signal
(Export Only)
46 Left High‐Beam
Headlamp
47 Right High‐Beam
Headlamp
50 Right Daytime
Running Lamp
51 Airbag System
Ignition Switch Mini‐Fuses Usage
52 Engine Control
Module Ignition,
Transmission
Control Module
Ignition
54 Power Moding
(Immobilizer
Module, Ignition
Switch)
55 Not Used
56 Windshield Wipers
57 Right Low‐Beam
(HID Only)
58 Daytime Running
Lamps (non‐HID),
Left Low‐Beam
(HID Only)
59 Right Daytime
Running Lamp
(HID Only), Right
Trailer Turn Signal
(Export Only)

Black plate (50,1)Cadillac CTS/CTS-V Owner Manual (Include Mex) - 2012
10-50 Vehicle Care
Mini‐Fuses Usage60 Instrument Panel
Auxiliary Power
Outlet
61 Air Quality Sensor,
Inside Rear View
Mirror, Rear
Camera
62 Ignition
64 Steering Wheel
Illumination
65 Front Fog Lamps
(HID Only)
69 Body Control
Module 6, Body
Control Module 7
70 Emissions 1
71 Even Ignition Coils
72 Engine Control
Module
73 Emissions 2
74 Odd Ignition Coils Mini‐Fuses Usage
75 Transmission
Output Speed
Sensor, Brake
Vacuum Relay
76 Spare
77 Spare
78 Spare
79 Spare
80 Spare
81 Spare
J-Case Fuses Usage
6 Cooling Fan 2
7 Cooling Fan 1
8 Starter
9 Brake
Vacuum Pump
10 Antilock Brake
System Motor J-Case
Fuses Usage
13 Not Used
14 Electric Parking
Brake
15 Not Used
16 Not Used
17 Blower Motor
18 Transmission
Control Module
Battery
37 Trailer (Export Only)
Relays Usage 1 Cooling Fan 2
2 Cooling Fan 1
3 Starter
4 Rear Window
Defogger
5 Instrument Panel
Auxiliary Power
Outlet

Black plate (51,1)Cadillac CTS/CTS-V Owner Manual (Include Mex) - 2012
Vehicle Care 10-51
RelaysUsage
12 Horn
20 Headlamp Washer
(HID Only)
21 Cooling Fan
(Series/Parallel)
32 Air Conditioning
Compressor Clutch
39 Not Used
42 Right Daytime
Running Lamp,
Trailer Turn Signal
44 Low‐Beam
(non‐HID), Left
Daytime Running
Lamps (HID), Left
Trailer Turn Signal
(Export Only)
45 Front Fog Lamps
(HID Only)
48 High‐Beam
Headlamps Relays
Usage
49 Daytime Running
Lamps (Non‐HID),
Low‐Beam
Headlamps (HID)
53 Not Used
63 Main Ignition
66 Windshield Wipers
67 Powertrain
68 Windshield Wipers
High Speed
Engine Compartment
Fuse Block (CTS V
Wagon)
The underhood fuse block is located
on the left side of the engine
compartment.
Lift the fuse block cover to access
the fuses.
The vehicle may not be equipped
with all of the fuses and relays
shown.
Notice:
Spilling liquid on any
electrical component on the
vehicle may damage it. Always
keep the covers on any electrical
component.

Black plate (53,1)Cadillac CTS/CTS-V Owner Manual (Include Mex) - 2012
Vehicle Care 10-53
Mini‐Fuses Usage43 Left Daytime
Running
Lamp (HID)
46 Left High‐Beam
Headlamp
47 Right High‐Beam
Headlamp
50 Right Daytime
Running Lamp
51 Airbag System
Ignition Switch
52 Engine Control
Module Ignition,
Transmission
Control Module
Ignition
54 Power Moding
(Immobilizer
Module, Ignition
Switch)
55 Intercooler Pump
56 Windshield Wipers Mini‐Fuses Usage
57 Right Low‐Beam
(HID Only)
58 Left Low‐Beam
(HID Only)
59 Right Daytime
Running Lamp
(HID Only)
60 Instrument Panel
Auxiliary Power
Outlet
61 Air Quality Sensor,
Inside Rear View
Mirror, Rear
Camera
62 Ignition
64 Steering Wheel
Illumination
65 Front Fog Lamps
(HID Only)
69 Body Control
Module 6, Body
Control Module 7 Mini‐Fuses Usage
70 Emissions 1
71 Even Ignition Coils
72 Odd Ignition Coils
73 Emissions 2
74 Engine Control
Module
75 Not Used
76 Spare
77 Spare
78 Spare
79 Spare
80 Spare
81 Spare
J-Case Fuses Usage
6 Cooling Fan 2
7 Cooling Fan 1
8 Starter

Black plate (54,1)Cadillac CTS/CTS-V Owner Manual (Include Mex) - 2012
10-54 Vehicle Care
J-CaseFuses Usage
9 Not Used
10 Antilock Brake
System Motor
13 Not Used
14 Electric Parking
Brake
15 Not Used
16 Not Used
17 Blower Motor
18 Rear Window
Defogger
37 Magnetic Ride/
Suspension Control
Relays Usage 1 Cooling Fan 2
2 Cooling Fan 1
3 Starter Relays Usage
4 Rear Window
Defogger
5 Instrument Panel
Auxiliary Power
Outlet
12 Horn
20 Headlamp Washer
(HID Only)
21 Cooling Fan
(Series/Parallel)
32 Air Conditioning
Compressor Clutch
39 Not Used
42 Right Daytime
Running Lamp
44 Left Daytime
Running Lamp (HID)
45 Front Fog Lamps
(HID Only)
48 High‐Beam
Headlamps Relays Usage
49 Low‐Beam
Headlamps (HID)
53 Not Used
63 Main Ignition
66 Windshield Wipers
67 Powertrain
68 Windshield Wipers
High Speed
Rear Compartment Fuse
Block (CTS Coupe and
Sedan)
The rear compartment fuse block is
located on top of the battery, on the
right side of the trunk. The battery
access door must be removed to
access the fuse block.
The vehicle may not be equipped
with all of the fuses, relays, and
features shown.

Black plate (74,1)Cadillac CTS/CTS-V Owner Manual (Include Mex) - 2012
10-74 Vehicle Care
and transmits the tire pressure
readings to a receiver located in
the vehicle.
When a low tire pressure condition
is detected, the TPMS illuminates
the low tire pressure warning light
located on the instrument cluster.
If the warning light comes on, stop
as soon as possible and inflate the
tires to the recommended pressure
shown on the tire loading
information label. SeeVehicle
Load Limits on page 9‑11.
A message to check the pressure
in a specific tire displays in the
DIC display screen. The low tire
pressure warning light and the DIC
warning message come at each
ignition cycle until the tires are inflated to the correct inflation
pressure. Using the Driver
Information Center (DIC), tire
pressure levels can be viewed. For
additional information and details
about the DIC operation and
displays see
Driver Information
Center (DIC) on page 5‑27 andTire
Messages on page 5‑43.
The low tire pressure warning light
may come on in cool weather when
the vehicle is first started, and then
turn off as the vehicle is driven. This
could be an early indicator that the
air pressure is getting low and
needs to be inflated to the proper
pressure.
The Tire and Loading Information
label shows the size of the original
equipment tires and the correct
inflation pressure for the tires when
they are cold. See Vehicle Load
Limits on page 9‑11, for an example
of the Tire and Loading Information
label and its location. Also see Tire
Pressure on page 10‑70. The TPMS can warn about a l
ow tire pressure condition but it
does not replace normal tire
maintenance. See
Tire Inspection
on page 10‑76, Tire Rotation on
page 10‑77 andTires on
page 10‑63.
Notice: Tire sealant materials are
not all the same. A non-approved
tire sealant could damage the
TPMS sensors. TPMS sensor
damage caused by using an
incorrect tire sealant is not
covered by the vehicle warranty.
Always use only the
GM-approved tire sealant
available through your dealer or
included in the vehicle.
Factory-installed Tire Inflator Kits
use a GM approved liquid tire
sealant. Using non-approved tire
sealants could damage the TPMS
sensors. See Tire Sealant and
Compressor Kit on page 10‑86 for
information regarding the inflator kit
materials and instructions.

Black plate (75,1)Cadillac CTS/CTS-V Owner Manual (Include Mex) - 2012
Vehicle Care 10-75
TPMS Malfunction Light and
Message
The TPMS will not function properly
if one or more of the TPMS sensors
are missing or inoperable. When the
system detects a malfunction, the
low tire warning light flashes for
about one minute and then stays on
for the remainder of the ignition
cycle. A DIC warning message also
displays. The malfunction light and
DIC warning message come on at
each ignition cycle until the problem
is corrected. Some of the conditions
that can cause these to come
on are:
.One of the road tires has been
replaced with the spare tire,
if the vehicle has one. The spare
tire does not have a TPMS
sensor. The malfunction light
and the DIC message should go
off after the road tire is replaced
and the sensor matching
process is performed
successfully. See“TPMS Sensor
Matching Process” later in this
section.
.The TPMS sensor matching
process was not done or
not completed successfully
after rotating the tires. The
malfunction light and the DIC
message should go off after
successfully completing the
sensor matching process. See
“TPMS Sensor Matching
Process” later in this section.
.One or more TPMS sensors
are missing or damaged. The
malfunction light and the DIC
message should go off when the
TPMS sensors are installed and
the sensor matching process is
performed successfully. See
your dealer for service.
.Replacement tires or wheels do
not match the original equipment
tires or wheels. Tires and wheels
other than those recommended
could prevent the TPMS from
functioning properly. See Buying
New Tires on page 10‑79.
.Operating electronic devices or
being near facilities using radio
wave frequencies similar to the
TPMS could cause the TPMS
sensors to malfunction.
If the TPMS is not functioning
properly, it cannot detect or signal a
low tire condition. See your dealer
for service if the TPMS malfunction
light and DIC message comes on
and stays on.
TPMS Sensor Matching
Process
Each TPMS sensor has a unique
identification code. The identification
code needs to be matched to a new
tire/wheel position after rotating the
vehicle’s tires or replacing one or
more of the TPMS sensors. Also,
the TPMS sensor matching process
should be performed after replacing
a spare tire with a road tire
containing the TPMS sensor. The
malfunction light and the DIC
message should go off at the next
ignition cycle. The sensors are
matched to the tire/wheel positions,