Page 373 of 502

Black plate (41,1)Cadillac SRX Owner Manual (Include Mex) - 2012
Vehicle Care 10-41
Electrical System
Electrical System
Overload
The vehicle has fuses and circuit
breakers to protect against an
electrical system overload.
When the current electrical load is
too heavy, the circuit breaker opens
and closes, protecting the circuit
until the current load returns to
normal or the problem is fixed.
This greatly reduces the chance of
circuit overload and fire caused by
electrical problems.
Fuses and circuit breakers protect
power devices in the vehicle.
Replace a bad fuse with a new one
of the identical size and rating.
If there is a problem on the road and
a fuse needs to be replaced, the
same amperage fuse can be
borrowed. Choose some feature of
the vehicle that is not needed to use
and replace it as soon as possible.
Headlamp Wiring
An electrical overload may cause
the lamps to go on and off, or in
some cases to remain off. Have the
headlamp wiring checked right away
if the lamps go on and off or
remain off.
Windshield Wipers
If the wiper motor overheats due to
heavy snow or ice, the windshield
wipers will stop until the motor cools
and will then restart.
Although the circuit is protected
from electrical overload, overload
due to heavy snow or ice 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 an
electrical problem and not snow or
ice, be sure to get it fixed.
Fuses and Circuit
Breakers
The wiring circuits in the vehicle are
protected from short circuits by a
combination of fuses and circuit
breakers. This greatly reduces the
chance of damage caused by
electrical problems.
To check a fuse, 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.
Fuses of the same amperage can
be temporarily borrowed from
another fuse location, if a fuse goes
out. Replace the fuse as soon as
you can.
To identify and check fuses, circuit
breakers, and relays, seeEngine
Compartment Fuse Block on
page 10‑42 andRear Compartment
Fuse Block on page 10‑46.
Page 374 of 502
Black plate (42,1)Cadillac SRX Owner Manual (Include Mex) - 2012
10-42 Vehicle Care
Engine Compartment
Fuse Block
To remove the fuse block cover,
press the clips on the cover and lift
it straight up.
Notice:Spilling liquid on any
electrical component on the
vehicle may damage it. Always
keep the covers on any electrical
component.
Engine Compartment Fuse Block
The vehicle may not be equipped
with all of the fuses, relays, and
features shown. J-CaseFuses Usage
6 Wiper
12 Vacuum Pump J-Case
Fuses Usage
24 Antilock Brake
System Pump
25 Rear Electrical
Center 1
Page 375 of 502

Black plate (43,1)Cadillac SRX Owner Manual (Include Mex) - 2012
Vehicle Care 10-43
J-CaseFuses Usage
26 Rear Electrical
Center 2
41 Cooling Fan 2
42 Starter
45 Cooling Fan 1
Mini Fuses Usage 1 Engine Control
Module Battery
2 Transmission
Control Module
Battery
5 Engine Control
Module Run Crank
7 Post-Catalytic
Converter O2
Sensor
8 Pre-Catalytic
Converter O2
Sensor Mini Fuses Usage
9 Engine Control
Module Powertrain
10 Fuel Injectors-Even 11 Fuel Injectors-Odd
13 Washer
14 Heated Steering
Wheel
16 Instrument Panel
Cluster/Malfunction
Indicator Lamp/
Ignition
17 Air Quality Sensor
18 Headlamp Washer
19 Transmission
Control Module Run
Crank
20 Rear Electrical
Center Run Crank
30 Switch Back Light Mini Fuses Usage
32 Battery Sense
(Regulated Voltage
Control)
33 Adaptive Forward
Lighting/Adaptive
Headlamp Leveling
Module
34 Body Control
Module 7
35 Electronic Brake
Control Module
36 Air Conditioning
Compressor Clutch
46 Low-Beam
Headlamp‐Right
47 Low-Beam
Headlamp‐Left
50 Front Fog Lamps
51 Horn
52 Fuel System Control
Module
Page 376 of 502
Black plate (44,1)Cadillac SRX Owner Manual (Include Mex) - 2012
10-44 Vehicle Care
Mini Fuses Usage53 Headlamp Level
54 Sensing Diagnostic
Module Ignition
55 High-Beam
Headlamp-Right
56 High-Beam
Headlamp-Left
57 Ignition Steering
Column Lock
65 Trailer Right
Stoplamp
66 Trailer Left Stoplamp
67 Spare
68 Spare
69 Spare
70 Spare
71 Spare
72 Spare Mini Relays Usage
7 Powertrain
9 Cooling Fan 2
13 Cooling Fan 1
15 Run/Crank
Micro
Relays Usage
2 Vacuum Pump
4 Wiper Control
5 Wiper Speed
10 Starter
12 Cool Fan 3
14 Low Beam/HID
U Micro Relays Usage
3 Air Conditioning
Compressor Clutch
8 Headlamp WasherInstrument Panel
Fuse Block
The instrument panel fuse block is
located in the center console
between the driver and passenger
seats. To access the fuses, open
the fuse panel door from the
passenger side by pulling it out.
To reinstall the door, push the door
back into its original location.
The vehicle may not be equipped
with all of the fuses, relays and
features shown.
Page 377 of 502
Black plate (45,1)Cadillac SRX Owner Manual (Include Mex) - 2012
Vehicle Care 10-45
Instrument Panel Fuse BlockMini Fuses Usage
DISPLY Display
S/ROOF Sun Roof
RVC MIRR Rear Vision
Camera Mirror
UHP Universal
Handsfree Phone
RDO Radio
APO ‐IP Auxiliary Power
Outlet
‐Instrument
Panel
APO ‐CNSL Auxiliary Power
Outlet
‐Floor
Console
BCM 3 Body Control
Module 3
BCM 4 Body Control
Module 4
BCM 5 Body Control
Module 5
ONSTAR OnStar®System
(If Equipped)
Page 378 of 502
Black plate (46,1)Cadillac SRX Owner Manual (Include Mex) - 2012
10-46 Vehicle Care
Mini Fuses Usage
RAIN SNSR Rain Sensor
BCM 6 Body Control
Module 6
ESCL Electronic Steering
Column Lock
AIRBAG Sensing and
Diagnostic Module
DLC Data Link
Connection
IPC Instrument Panel
Cluster
SPARE Not Used
BCM 1 Body Control
Module 1
BCM 2 Body Control
Module 2
AMP/RDO Amplifier/Radio
HVAC Heating Ventilation
& Air Conditioning J‐Case
Fuses Usage
BCM 8 Body Control
Module 8
FRT BLWR Front Blower
Relays Usage
LOGIC RLY Logistics Relay
RAP/
ACCY RLY Retained
Accessory Power/
Accessory RelayRear Compartment
Fuse Block
The rear compartment fuse block is
located in the cargo area, on the
driver side of the vehicle behind the
lower trim panel. To open, turn the
latch with a flat bladed tool and pull
the trim panel from the edges to fold
it down.
The vehicle may not be equipped
with all of the fuses, relays, and
features shown.
Page 379 of 502
Black plate (47,1)Cadillac SRX Owner Manual (Include Mex) - 2012
Vehicle Care 10-47
Rear Compartment Fuse BlockFuses Usage
SPARE
FUSES Spare Fuses
AOS MDL Automatic Occupant
Sensing Module
SPARE Not Used
SPARE Not Used
SPARE Not Used
PASS DR
WDO SW Passenger Door
Window Switch
DRV
PWR SEAT Driver Power Seat
PASS DR
PWR SEAT Passenger/Driver
Power Seats
MDL TRLR Trailer Module
RPA MDL Rear Parking Assist
Module
RDM Rear Drive Module
PRK LPS TRLR Trailer Park Lamps Fuses Usage
FUEL
PUMP Fuel Pump
* SEC Security
INFOTMNT Infotainment
* TRLR EXP Trailer Export
WPR REAR Rear Wiper MIR
WDO MDL Mirror Window
Module
VICS Vehicle Information
Communications
System (Export)
CNSTR VENT Canister Vent
LGM
LOGIC Lift Gate Module
Logic
CAMERA Rear Vision Camera
FRT
VENT SEAT Front Ventilated
Seats
TRLR MDL Trailer Module
Page 380 of 502
Black plate (48,1)Cadillac SRX Owner Manual (Include Mex) - 2012
10-48 Vehicle Care
FusesUsage
SADS MDL Semi Active
Damping System
Module
RR
HTD SEAT Rear Heated Seats
FRT
HTD SEAT Front Heated Seats
THEFT HORN Theft Horn
* LGATE Liftgate SHUNT Shunt REAR
DEFOG Rear Defog
* BCM
THEFT Body Control
Module Theft
* TRLR 2 Trailer 2
UGDO Universal Garage
Door Opener Fuses
Usage
RT WDO Right Window PRK
BRK MDL Park Brake Module
SPARE Not Used
LT WDO Left Window
IGN/
THEFT 1 Ignition/Theft 1
LGATE MDL Liftgate Module
IGN/
THEFT 2 Ignition/Theft 2
SPARE Not Used
HTD MIR Heated Mirror
AUX PWR Auxiliary Power
Outlet Relays
Usage
SPARE Not Used * FUEL PUMP Fuel Pump
WPR
CONTRL Wiper Control
* RUN RLY Run Relay
LOGIC Logistic Relay
(Export)
DEFOG REAR Rear Window
Defogger
*‐Denotes up‐level content.