2016 CADILLAC CTS Owners Manual

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-9369309) -
2016 - crc - 7/30/15
280 Vehicle Care
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. Wiper function is
available immediately after the wiper
switch is set to off, and back to on.
To protect the wiper motor from
overheating, the wipers may slow
down when the windshield is dry for
a long period of time. If a period of
dry operation, or little moisture,
exceeds 10 minutes, the wipers
may switch to intermittent operation,
and remain there. When moisture is
again detected on the windshield,
wiper operation will return to the
operator selected speed.
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
possible.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-9369309) -
2016 - crc - 7/30/15
Vehicle Care 281
To identify and check fuses, circuit
breakers, and relays, seeEngine
Compartment Fuse Block 0281,
Instrument Panel Fuse Block 0284,
and Rear Compartment Fuse Block
0 287.
Engine Compartment
Fuse Block
The underhood fuse block is on the
passenger 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.
Caution
Spilling liquid on any electrical
component on the vehicle may
damage it. Always keep the
covers on any electrical
component.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-9369309) -
2016 - crc - 7/30/15
282 Vehicle Care
Number Usage1 Not used
2 Not used Number Usage
*3 Passenger motorized
safety belt Number Usage
4 Not used
5 Not used
6 Driver power seat
7 Not used
*8 Headlamp washer relay
9 Not used
10 Not used 11 Not used
12 Not used
13 Passenger power seat
14 Not used
15 Front wiper
16 Not used
*17 Headlamp washer
18 Not used
19 Antilock brake system pump
20 Antilock brake system valve

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-9369309) -
2016 - crc - 7/30/15
Vehicle Care 283
Number Usage21 Not used
*22 Driver motorized safety belt
23 Wiper control relay
24 Wiper speed relay
25 Engine control module relay
26 Not used
27 Spare/Heated seat 2
28 Spare/Reverse Lock Out
*29 AFS AHL/ pedestrian
protection
30 Not used
31 Passenger Window Switch
32 Not used
33 Sunroof
34 Front wiper
*35 Steering column lock Number Usage
36 Rear Bussed Electrical Center
37 Spare/MIL ignition
38 Spare/PT Fuse
39 O2 sensor
40 Ignition coil injector
41 Spare/Ignition coil injector
42 Engine control module
43 Not used
44 Not used
45 Washer
46 Not used
47 Front washer relay
48 IP body ignition
49 Fuel system control module ignition
50 Heated steering wheel
51 Engine control module ignition Number Usage
52 Transmission control module
ignition
*53 Coolant pump
*54 Coolant pump relay 55 Not used
56 Transmission control module/
spare
*57 Headlamp low relay 58 Headlamp high relay
59 Run/crank relay
*60 Starter 2 relay
*61 Vacuum pump relay 62 Starter relay
63 Air conditioning control relay
*64 Automatic head lamps
*65 Left high intensity discharge

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-9369309) -
2016 - crc - 7/30/15
284 Vehicle Care
Number Usage*66 Right high intensity discharge
67 Head lamp high left/ right
68 Aero shutter
69 Horn
70 Horn relay
71 Cooling fan
*72 Starter 2
*73 Brake vacuum pump
74 Starter
75 Air conditioning clutch
76 Not used
* Optional
Instrument Panel Fuse
Block
The instrument panel fuse block is
in the end of the driver side of the
instrument panel.
To access the fuses, remove the
end panel by gently prying with a
plastic tool near each clip, beginning
at the point shown.
To install the end cover, insert the
tabs on the back of the cover into
the slots in the instrument panel at
the points shown. Align the clips
with the slots in the instrument
panel, and press the cover into
place.
The vehicle may not be equipped
with all of the fuses and relays
shown.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-9369309) -
2016 - crc - 7/30/15
Vehicle Care 285
Mini Fuses Usage2 Motorized cupholder Mini Fuses Usage
3 Electric steering column lock Mini Fuses Usage
4 Data link connector
5 Heater, ventilation, and air conditioning
control
6 Tilt and telescoping steering column
8 Spare
9 Glove box release
10 Shunt
11 Body control module 1
12 Body control module 5
13 Spare
14 Spare
15 Spare
16 Spare
17 Spare
18 Spare
19 Spare

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-9369309) -
2016 - crc - 7/30/15
286 Vehicle Care
Mini Fuses Usage20 Spare
21 Spare
22 Sensing diagnostic module/ automatic
occupant sensing
23 Radio/DVD/Heater, ventilation, and air
conditioning
24 Display
25 Heated steering wheel
26 Wireless charger
27 Steering wheel switches
28 Spare
29 Visor
30 Spare J Case
Fuses Usage
31 Spare
32 Spare
33 Front heater, ventilation, and air
conditioning blower
Circuit
Breakers Usage
CB1 Retained accessory power/accessory
power outlet power
CB7 Spare Relays Usage
K10 Retained accessory power/Accessory
K605 Logistics
K644 Glove box release

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-9369309) -
2016 - crc - 7/30/15
Vehicle Care 287
Rear Compartment Fuse
Block
The rear compartment fuse block is
behind a cover on the driver side of
the rear compartment.
The vehicle may not be equipped
with all of the fuses, relays, and
features shown.