Cadillac CTS (2008-2014) fuses and relays


In this article, we consider the second generation Cadillac CTS, produced from 2008 to 2014. Here you will find fuse box diagrams of Cadillac CTS 2008, 2009, 2010, 2011, 2012, 2013 and 2014, get information about the location of the fuse panels inside the car, and learn about the assignment of each fuse (fuse layout) and relay.

Fuse Layout Cadillac CTS 2008-2014

Cigar lighter / power outlet fuses in the Cadillac CTS are located in the Engine compartment fuse box (2008-2009 – see fuse “LTR” (Cigarette Lighter), 2010-2014 – fuse №60 (Instrument Panel Auxiliary Power Outlet)) and in the Luggage compartment fuse box (2008-2009 – see fuse “AUX/OUTLET” (Auxiliary Power Outlet), 2010-2014 – fuses №17 (Console/Auxiliary Power Outlet and №38 (Rear Auxiliary Power Outlet (Wagon)).

Fuse Box Location

Engine compartment

Remove the engine cover.The location of the fuses in the engine compartment: Cadillac CTS (2008-2009)

Luggage compartment

It is located in the right side of the trunk, behind the cover.The location of the fuses in the trunk: Cadillac CTS (2008-2009)

Fuse box diagrams

2008, 2009

Engine compartment

CTS (2008)Under-hood fuse box diagram: Cadillac CTS (2008)

CTS (2009)Under-hood fuse box diagram: Cadillac CTS (2009)

CTS-V (2009)Under-hood fuse box diagram: Cadillac CTS-V (2009)


Assignment of the fuses and relays in the engine compartment (2008, 2009)

Name Description
Mini Fuses
A/C CLTCH Air Conditioning Clutch
ABS Antilock Braking System (ABS)
AFS Adaptive Forward Lighting System
AIRBAG IGN Airbag Switch
AWD All-Wheel Drive
S/ROOF Sunroof
BCM 1 Body Control Module 1
BCM 2 Body Control Module 2
BCM 3 Body Control Module 3
BCM 4 Body Control Module 4
BCM 5 Body Control Module 5
BCM 6 Body Control Module 6
BCM 7 Body Control Module 7
BCM 6, BCM 7 Body Control Module 6 and 7
DISPLY Display
DRL RT Right Daytime Running Lamp (DRL)
DRL/WSW Daytime Running Lamps/Windshield Washer Pump
DRL/ENG PUMP Daytime Running Lamps
ECM Engine Control Module (ECM)
ECM/TCM IGN ECM, Transmission Control Module (TCM), Instrument Panel Cluster (IPC), PASS-Key III+ Module
EMIS 1 Emission 1
EMIS 2 Emission 2
FRT FOG Front Fog Lamps
HDM WASH Headlamp Driver Module Washer
LO BEAM DRL LEFT Low-Beam Daytime Running Lamps (Left)
DRL LT Left Daytime Running Lamps
LT HI BEAM Left High-Beam Headlamp
LT LO BEAM Left Low-Beam Headlamp
LT LO BEAM Left Low-Beam Headlamp
DRL/LT LO BEAM Daytime Running Lamps / Left Low-Beam Headlamp
LTR Cigarette Lighter
MISC IGN Ignition
NAV MTR Navigation Motor
PWR MODING PassKey Module, Body Control Module
RT HI BEAM Right High-Beam Headlamp
RT LO BEAM Right Low-Beam Headlamp
STR/WHL/ILLUM Steering Wheel Illumination
TCM BATT Transmission Control Module Battery
TRANS OIL RLY Transmission Oil Relay
WPR Windshield Wiper
WSW PUMP Windshield Washer Pump
J-Case fuses
BLWR Blower
BRK VAC PUMP Brake Vacuum Pump
FAN 1 Cooling Fan 1
FAN 2 Cooling Fan 2
REAR DEFOG Rear Defogger
EPB Electric Park Brake
MRTD MR Ride/Suspension Control
STRTR Starter
TRANS PUMP Transmission Pump
WSW/HTR Windshield Washer Heater
Circuit Breakers
HEAD LAMP WASH Headlamp Washer
A/C CMPRSR CLTCH Air Conditioning Compressor Clutch
Daytime Running Lamps (without High Intensity Discharge), Low-Beam Headlamps (High Intensity Discharge)
LO BEAM Low Beam
INCL Intercooler Pump
ENG PUMP Engine Pump
FAN S/P Cooling Fan Series/Parallel
FAN 1 Cooling Fan 1
FAN 2 Cooling Fan 2
HEAD LAMP WASH Headlamp Washer
HI BEAM High-Beam Headlamp
IGN 1 Ignition 1
Low-Beam (without High Intensity Discharge), Left Daytime Running Lamp (High Intensity Discharge)
LT DRL Left Daytime Running Lamps
PWR/TRN Powertrain
REAR DEFOG Rear Defogger
STRTR Starter
WPR Windshield Wiper
WPR HI Windshield Wiper High Speed
WSW PUMP Windshield Washer Pump
FOG LAMP Fog Lamps
RT DRL (HID) Right Daytime Running Lamp (High Intensity Discharge)
RT DRL Right Daytime Running Lamp

Luggage compartment

Trunk fuse box diagram:Cadillac CTS (2008, 2009)

Assignment of the fuses and relays in the Luggage compartment (2008, 2009)

Name Description
AIRBAG Airbag System
AMP Amplifier
AUX/OUTLET Auxiliary Power Outlet
CNSTR/VENT Canister Vent
DR/LCK Door Lock
ECM Engine Control Module (ECM)
LT/POS/LP Left Position Lamp
LT/REAR/WNDW Left Rear Window
MSM Memory Seat Module
ONSTAR OnStar® System
PDM Passenger Door Module
RDO Audio System
RDO/SPKR Audio Speakers
REAR/WNDW Rear Window
RKE/PASS-KEY/MDL Remote Keyless Entry System, Pass-Key Theft Deterrent Feature Module
RT/POS/LP Right Position Lamp
RVC/SNSR Regulated Voltage Control Sensor
S/ROOF Sunroof
FSCM Fuel System Control Module
STOP/LP Stoplamp
THEFT/UGDO Theft Deterrent System, Universal Home Remote System
TRUNK/RELSE Trunk Release
LCK Lock
LT FRT/PWR/SEAT Left Front Power Seat
LT/POS/LP Left Position Lamp
PWR CLMN Power Steering Column
PWR/WNDW Power Window
RT FRT/PWR/SEAT Right Front Power Seat
RT/POS/LP Right Position Lamp
STOP/LP Stoplamp
TRUNK/RELSE Trunk Release
UNLCK Unlock

2010, 2011, 2012, 2013, 2014

Engine compartment

Under-hood fuse box diagram: Cadillac CTS (2010, 2011, 2012, 2013, 2014)

Assignment of the fuses and relays in the Engine compartment (2010-2014)

11 Not Used
19 Antilock Braking System (ABS)
22 Display
23 Not Used
CTS-V Wagon: Sunroof
24 Body Control Module 1
25 Automatic Forward Lighting System (HID Only)
26 Body Control Module 5
27 Body Control Module 4
28 Navigation Motor
29 CTS: All-Wheel Drive
CTS-V: Not Used
30 Transmission Control Module Battery
31 Horn
33 CTS: Left Low‐Beam Headlamp (Domestic Non‐HID Only)
CTS-V: Not Used
34 Pedestrian Protection System (Export Only)
35 Body Control Module 3
36 Body Control Module 2
38 Headlamp Washer (HID Only)
40 CTS: Right Low‐Beam Headlamp (Domestic Non‐HID Only)
CTS-V: Not Used
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, Windshield Washer Pump
51 Airbag System Ignition Switch
52 Engine Control Module Ignition, Transmission Control Module Ignition
54 Power Moding (Immobilizer Module, Ignition Switch)
55 CTS: Not Used
CTS-V: Intercooler Pump
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)
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
70 Emissions 1
71 Even Ignition Coils
72 CTS: Engine Control Module
CTS-V: Odd Ignition Coils
73 Emissions 2
74 CTS: Odd Ignition Coils
CTS-V: Engine Control Module
75 CTS: Transmission Output Speed Sensor, Brake Vacuum Relay
CTS-V: Not Used
76 Spare
77 Spare
78 Spare
79 Spare
80 Spare
81 Spare
J-Case Fuses
6 Cooling Fan 2
7 Cooling Fan 1
8 Starter
9 CTS: Brake Vacuum Pump
CTS-V: Not Used
10 Antilock Brake System Motor
13 Not Used
14 Electric Parking Brake
15 Not Used
16 Not Used
17 Blower Motor
18 CTS Coupe and Sedan, CTS-V Wagon: Rear Window Defogger
CTS Wagon: Transmission Control Module Battery
37 CTS: Trailer (Export Only)
CTS-V: Magnetic Ride/Suspension Control
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 Coupe and Sedan: Windshield Washer Pump
Wagon: 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
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

Luggage compartment

Trunk fuse box diagram: Cadillac CTS (2010, 2011, 2012, 2013, 2014)

Assignment of the fuses and relays in the Luggage compartment (2010-2014)

14 Right Position Lamp
15 Left Position Lamp
16 Door Lock
17 Console/Auxiliary Power Outlet
18 Rear Fog/Export Body Control Module (Export Only)
19 Coupe and Sedan: Trunk Release
Wagon: Rear Windshield Wiper/Washer
20 Coupe: Easy Entry Seats
Wagon: Windshield Washer Pump
21 CTS: Sunroof
CTS-V: Fuel Pump
22 Right Position Lamp (Export Only)
23 Regulated Voltage Control Sensor
24 Audio System (Radio)
25 Airbag System
26 Remote Keyless Entry/PASS‐Key® Theft Deterrent Module
27 Audio Speakers/Subwoofer
28 OnStar System
29 Engine Control Module
30 Canister Vent
31 CTS: Fuel Pump
CTS-V: Rear Differential Cooling Pump
33 Stop Lamps (Export Only)
34 Theft Deterrent System/Universal Garage Door Opener
35 Memory Seat Module
36 Passenger Door Module
38 Coupe and Sedan: Not Used
Wagon: Rear Auxiliary Power Outlet
39 Amplifier
Circuit Breakers
1 Driver Power Seat Switch
2 Passenger Power Seat Switch
3 Power Windows
4 Power Steering Column
32 Left Rear Window Switch
37 Right Rear Window Switch
5 Stop Lamps (Export Only)
6 Door Lock
7 Door Unlock
8 Fuel Door Unlock (Export Only)
9 Right Position Lamp (Export Only)
10 Console/Auxiliary Power Outlet
11 Coupe and Sedan: Trunk Release
Wagon: Not used
12 Side Marker Lamps
13 Left Position Lamps

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