Radio/DVD/Heater, Ventilation, and Air Conditioning
24
Display
25
Heated Steering Wheel
26
Wireless Charger
27
Steering Wheel Switches
28
Spare
29
Visior
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
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.
Number
Usage
1*
Electronic Limited Slip Differential/DC DC Transformer
2
Left Window
3
Body Control Module 8
4*
A/C Inverter
5
Passive Entry Passive Start Battery 1
6
Body Control Module 4
7
Heated Mirrors
8
Amplifier
9
Rear Window Defogger
10
Glass Break
11*
Trailer Connector
12
OnStar (If Equipped)
13
Right Window
14
Electric Parking Brake
15
Not Used
16
Trunk Release
17*
Run Relay
18*
Logistics Relay
19*
Logistics Fuse
20
Rear Window Defogger Relay
21
Mirror Window Module
22
Pedestrian Protection
23
Canister Vent
24
Body control module 2
25*
Rear Vision Camera
26*
Front Ventilated Seats
27*
SBZA/LDW/EOCM
28*
Trailer/Sunshade
29*
Rear Heated Seats
30*
Semi-Active Damping System
31*
Transfer Case Control Module/Electronic Limited Slip Differential
32
Theft Module/Universal Garage Door Opener/Rain Sensor
33*
UPA
34*
Radio/DVD
35
Spare
36*
Trailer
37
Fuel Pump/Fuel System Control Module
38
Not Used
39
Not Used
40
Not Used
41
Not Used
42*
Memory Seat Module
43
Body Control Module 3
44
Not Used
45
Battery Regulated Voltage Control
46
Engine Control Module Battery
47
Not Used
48
Not Used
49*
Trailer Module
50
Door Lock Security
51
Rear Closure Release
52
Not Used
53
Not Used
54
Door Lock Security
55
Not Used
56*
Fuel Door
* Optional
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
Radio/DVD/Heater, Ventilation, and Air Conditioning
24
Display
25
Heated Steering Wheel
26
Wireless Charger
27
Steering Wheel Switches
28
Spare
29
Spare
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
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.
Number
Usage
1*
Electronic Limited Slip Differential/DC DC Transformer
2
Left Window
3
Body Control Module 8
4*
A/C Inverter
5
Passive Entry Passive Start Battery 1
6
Body Control Module 4
7
Heated Mirrors
8
Amplifier
9
Rear Window Defogger
10
Glass Break
11*
Trailer Connector
12
OnStar (If Equipped)
13
Right Window
14
Electric Parking Brake
15
Not Used
16
Trunk Release
17*
Run Relay
18*
Logistics Relay
19*
Logistics Fuse
20
Rear Window Defogger Relay
21
Mirror Window Module
22
Pedestrian Protection
23
Canister Vent
24
Pedestrian Protection
25*
Rear Vision Camera
26*
Front Ventilated Seats
27*
SBZA/LDW/EOCM
28*
Trailer/Sunshade
29*
Rear Heated Seats
30*
Semi-Active Damping System
31*
Transfer Case Control Module/Electronic Limited Slip Differential
32
Theft Module/Universal Garage Door Opener/Rain Sensor
33*
UPA
34*
Radio/DVD
35
Not Used
36*
Trailer
37
Fuel Pump/Fuel System Control Module
38
Not Used
39
Not Used
40
Not Used
41
Not Used
42*
Memory Seat Module
43
Body Control Module 3
44
Not Used
45
Battery Regulated Voltage Control
46
Engine Control Module Battery
47
Not Used
48
Not Used
49*
Trailer Module
50
Door Lock Security
51
Rear Closure Release
52
Not Used
53
Not Used
54
Door Lock Security
55
Not Used
56*
Fuel Door
* Optional
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
The underhood fuse block is located on the passenger side of the engine compartment.
Mini-Fuses
Usage
11
Not Used
19
Antilock Braking System (ABS)
22
Display
23
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
Not used
30
Transmission Control Module Battery
31
Horn
33
Not used
34
Pedestrian Protection System (Export Only)
35
Body Control Module 3
36
Body Control Module 2
38
Headlamp Washer (HID Only)
40
Not used
41
Air Conditioning Compressor Clutch
43
Left Daytime Running Lamps (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
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
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
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
Not used
42
Right Daytime Running Lamp
44
Left Daytime Running Lamps (HID)
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
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.
Theft Deterrent System/Universal Garage Door Opener
35
Memory Seat Module
36
Passenger Door Module
38
Not Used
39
Amplifier
Circuit Breakers
Usage
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
Rear Compartment Fuse Block (CTS-V 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.
Theft Deterrent System/Universal Garage Door Opener
35
Memory Seat Module
36
Passenger Door Module
38
Not Used
39
Amplifier
Circuit Breakers
Usage
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
Rear Compartment Fuse Block (CTS Wagon)
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.
Theft Deterrent System/Universal Garage Door Opener
35
Memory Seat Module
36
Passenger Door Module
38
Rear Auxiliary Power Outlet
39
Amplifier
Circuit Breakers
Usage
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
Rear Compartment Fuse Block (CTS-V Wagon)
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.
Low-Beam (without High Intensity Discharge), Left Daytime Running Lamp (High Intensity Discharge)
PWR/TRN
Powertrain
REAR DEFOG
Rear Defogger
RT DRL (HID)
Right Daytime Running Lamp (High Intensity Discharge)
SPARE
Spare
STRTR
Starter
WPR
Windshield Wiper
WPR HI
Windshield Wiper High Speed
Rear Compartment Fuse Block (CTS)
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.
Theft Deterrent System, Universal Home Remote System
TRUNK/RELSE
Trunk Release
Circuit Breakers
Usage
DRV/PWR/SEAT
Left Front Power Seat
LT/ REAR/ WNDW
Left Rear Window
PWR CLMN
Power Steering Column
PWR/WNDW
Power Window
PASS/ PWR/SEAT
Right Front Power Seat
REAR/WNDW
Right Rear Window
Rear Compartment Fuse Block (CTS-V)
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.
Theft Deterrent System, Universal Home Remote System
TRUNK/RELSE
Trunk Release
Circuit Breakers
Usage
DRV/PWR/SEAT
Left Front Power Seat
LT/ REAR/ WNDW
Left Rear Window
PASS/PWR/SEAT
Right Front Power Seat
PWR CLMN
Power Steering Column
PWR/WNDW
Power Window
REAR/WNDW
Right Rear Window
Rear Compartment Fuse Block (Wagon)
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 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.
Theft Deterrent System, Universal Home Remote System
TRUNK/RELSE
Trunk Release
Circuit Breakers
Usage
LF FRT/ PWR/SEAT
Left Front Power Seat
PWR CLMN
Power Steering Column
PWR/WNDW
Power Window
RT FRT/PWR/SEAT
Right Front Power Seat
LT/REAR/WNDW
Left Rear Window
REAR/WNDW
Right Rear Window
Rear Compartment Fuse Block (CTS-V)
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.
Low-Beam (without High Intensity Discharge), Left Daytime Running Lamp (High Intensity Discharge)
PWR/TRN
Powertrain
REAR DEFOG
Rear Defogger
SPARE
Spare
STRTR
Starter
WPR
Windshield Wiper
WPR HI
Windshield Wiper High Speed
WSW PUMP
Windshield Washer Pump
Rear Compartment Fuse Block
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.
Driver’s and Passenger’s Side Oxygen Sensors, LRPDB (Pusher Cooling Fan Relay)
I/P OUTLET
Instrument Panel Accessory Power Outlet
CCP
Climate Control Panel
EVEN INJ/COILS
Even Injection Coils
SPARE
Not Used
SPARE
Not Used
SPARE
Not Used
Circuit Breakers
Usage
HDLP WASH C/B – OPT
Headlamp Washer Motor
Rear Underseat Fuse Block (Driver’s Side)
The driver’s side rear fuse block is located under the rear seat on the driver’s side of the vehicle. The rear seat cushion must be removed to access the rear fuse block.
Fuses
Usage
SPARE
Not Used
SPARE
Not Used
AUDIO
Radio, OnStar Module
SPARE
Not Used
REAR DR MOD
Rear Door Modules
SPARE
Not Used
DRIVER DR MOD
Driver’s Door Module
BAS
Taillamps, Center High-Mounted Stoplamp, Flasher Module, ABS Module, Trailer Lamps
HDLP LEVELING
Headlamp Leveling System Chassis Sensors (Export Only)
SPARE
Not Used
CCP
CCP (Climate Control Panel)
IGN 3
Heated Seat Modules, Air Inlet Motor, Shifter Assembly
Heated Seat Modules, Air Inlet Motor, Shifter Assembly
STANDING LAMP RLY MICRO
Control for Position Lamp Relays
J Cases
Usage
AMP
Audio Amplifier
PUSHER FAN
Pusher Fan (Export Only)
Circuit Breakers
Usage
SEAT C/B
Power Seat Switches, Memory Seat Module
Misc.
Usage
JOINT
CONNECTOR
Joint Connector
Rear Underseat Fuse Block (Passenger’s Side)
The passenger’s side rear fuse block is located under the rear seat on the passenger’s side of the vehicle. The rear seat cushion must be removed to access the rear fuse block.
Fuses
Usage
TRUNK DIODE
Trunk Lamp
POWER SOUNDER
Power Sounder, Inclination Sensor
SPARE
Not Used
CANISTER VENT
Canister Vent Solenoid
FUEL PUMP MTR
Fuel Pump Motor
SPARE
Not Used
R FRT HTD SEAT MOD
Passenger’s Side Heated Seat Module
SPARE
Not Used
AIR BAG
SDM (Sensing Diagnostic Module)
RIM
ISRVM (Inside Rearview Mirror), Power Sounder, RIM
Driver’s and Passenger’s Side Oxygen Sensors, LRPDB (Pusher Cooling Fan Relay)
I/P OUTLET
Instrument Panel Accessory Power Outlet
CCP
Climate Control Panel
EVEN INJ/COILS
Even Injection Coils
SPARE
Not Used
SPARE
Not Used
SPARE
Not Used
Circuit Breakers
Usage
HDLP WASH C/B – OPT
Headlamp Washer Motor
Rear Underseat Fuse Block (Driver’s Side)
The driver’s side rear fuse block is located under the rear seat on the driver’s side of the vehicle. The rear seat cushion must be removed to access the rear fuse block.
Relay
Usage
BAS RELAY MINI
Brake Apply Sensor
SPARE
Not Used
SPARE
Not Used
PUSHER FAN
Pusher Fan (Export Only)
L POSITION RELAY MICRO
Driver’s Side Position Lamp
R POSITION RELAY MICRO
Passenger’s Side Position Lamp
IGN 3 RELAY MICRO
Heated Seat Modules, Air Inlet Motor, Shifter Assembly
Taillamp Assemblies, Front Position Lamp Assemblies
SPARE
Not Used
SPARE
Not Used
AUDIO
Radio, OnStar Module
SPARE
Not Used
REAR DR MOD
Rear Door Modules
SPARE
Not Used
DRIVER DR MOD
Driver’s Door Module
BAS
Taillamps, Center High-Mounted Stoplamp, Flasher Module, ABS Module, Trailer Lamps
HDLP LEVELING
Headlamp Leveling System Chassis Sensors (Export Only)
SPARE
Not Used
CCP
CCP (Climate Control Panel)
IGN 3
Heated Seat Modules, Air Inlet Motor, Shifter Assembly
J Cases
Usage
AMP
Audio Amplifier
PUSHER FAN
Pusher Fan (Export Only)
Circuit Breakers
Usage
SEAT C/B
Power Seat Switches, Memory Seat Module
Rear Underseat Fuse Block (Passenger’s Side)
The passenger’s side rear fuse block is located under the rear seat on the passenger’s side of the vehicle. The rear seat cushion must be removed to access the rear fuse block.
TCM (Transmission Control Module), ECM (Electronic Control Module), IPC (Instrument Panel Cluster), PASS-Key III+ Module
WPR MOD
Windshield Wiper Module Assembly
INJ
Fuel Injectors
COMP
CLUTCH
Compressor Clutch
WPR SW
Windshield Wiper/Washer Switch
FOG LAMP
Fog Lamps
OUTLET
Center Console Accessory Power Outlet
POST 02
Driver’s and Passenger’s Side Oxygen Sensors, LRPDB (Pusher Cooling Fan Relay)
I/P OUTLET
Instrument Panel Accessory Power Outlet
CCP
Climate Control Panel
PRE 02
Driver’s and Passenger’s Side Oxygen Sensors, Transmission Output Speed Sensor
SPARE
Not Used
SPARE
Not Used
SPARE
Not Used
Circuit Breakers
Usage
HDLP WASH C/B – OPT
Headlamp Washer Motor (Option)
Rear Underseat Fuse Block (Driver’s Side)
The driver’s side rear fuse block is located under the rear seat on the driver’s side of the vehicle. The rear seat cushion must be removed to access the rear fuse block.
Relay
Usage
SPARE
Not Used
SPARE
Not Used
SPARE
Not Used
PUSHER FAN
Pusher Fan (Export Only)
L POSITION RELAY MICRO
Driver’s Side Position Lamp
R POSITION RELAY MICRO
Passenger’s Side Position Lamp
IGN 3 RELAY MICRO
Heated Seat Modules, Air Inlet Motor, Shifter Assembly
Taillamp Assemblies, Front Position Lamp Assemblies
SPARE
Not Used
SPARE
Not Used
AUDIO
Radio, OnStar Module
SPARE
Not Used
REAR DR MOD
Rear Door Modules
SPARE
Not Used
DRIVER DR MOD
Driver’s Door Module
SPARE
Not Used
HDLP LEVELING
Headlamp Leveling System Chassis Sensors (Export Only)
EBCM
EBCM (Electronic Brake Control Module)
CCP
CCP (Climate Control Panel)
IGN 3
Heated Seat Modules, Air Inlet Motor, Shifter Assembly
J Cases
Usage
AMP
Audio Amplifier
PUSHER FAN
Pusher Fan (Export Only)
Circuit Breakers
Usage
SEAT C/B
Power Seat Switches, Memory Seat Module
Rear Underseat Fuse Block (Passenger’s Side)
The passenger’s side rear fuse block is located under the rear seat on the passenger’s side of the vehicle. The rear seat cushion must be removed to access the rear fuse block.