Jonathan Yarden Oct 06, 2021 · 5 min. read
In this article you will find a description of fuses and relays Cadillac,
with photos of block diagrams and their locations.
Highlighted the cigarette lighter fuse (as the most popular thing people look for).
Get tips on blown fuses, replacing a fuse, and more.
Year of production: 2009
Instrument Panel Fuse Block
The panel fuse block is located on the passenger’s side of the vehicle, under the instrument panel and under the toe-board.
| Fuses | Usage |
| ACCA/DRIV DR SW | Adaptive Cruise Control (ACC), Driver Door Switch |
| AUX PWR | Auxiliary Power |
| BTSI SOL/COL LOCK | Brake Transmission Shift Interlock Solenoid, Column Lock |
| CIGAR LTR | Cigar Lighter |
| CLSTR/HUD | Instrument Panel Cluster, Heads-up Display (HUD) |
| COLUMN LK MDL | Not Used |
| DECK LID CLOSE/PRK/BRK B | Trunk Close Button, Parking Brake Solenoid B |
| DR LOCKS | Door Locks |
| ECM | Engine Control Module |
| EMPTY | Not Used |
| EMPTY | Not Used |
| EMPTY | Not Used |
| EMPTY | Not Used |
| EMPTY | Not Used |
| FOLDING TOP/TRUNK LATCH | Retractable Hardtop, Trunk Latch |
| FUSE PULLER | Fuse Puller |
| GMLAN DEVICES | GMLAN Devices |
| HTD STR WHL | Heated Steering Wheel |
| HTD/SEAT LH | Driver Side Heated Seat |
| HTD/SEAT RH | Passenger Side Heated Seat |
| HVAC/PWR SND | Climate Control System, Power Sounder |
| IGN SW/INTR SNSR | Ignition Switch, Intrusion Sensor |
| INTERIOR LIGHTS | Interior Lights |
| ISRVM/HVAC | Inside Rearview Mirror, Climate Control System, Column Lock, Power Sounder |
| ONSTAR | OnStar® |
| PRK/BRK SOL A | Parking Brake Solenoid A |
| PWR FLDG MIR-EXT/RET | Power Folding Mirror |
| PWR LUMBAR LH/RH | Power Lumbar |
| RADIO/S-BAND/VICS | Radio, S-Band, CD Changer |
| REAR FOG/ALDL | Rear Fog Lamps, Diagnostic Link Connector |
| REVERSE LAMP | Reverse Lamp |
| REVERSE LAMP | Reverse Lamp |
| RPA/H/C SEAT/WPR RELAYS | Rear Park Aid, Heated/Cooled Seats, Windshield Wiper Relays |
| RUN/ACSRY PWR | Run, Accessory Power |
| Starter/Crank | Starter/Crank |
| SDM/PSIR SW | Airbags |
| SPARE FUSE HOLDER | Spare Fuse |
| SPARE FUSE HOLDER | Spare Fuse |
| SPARE FUSE HOLDER | Spare Fuse |
| SPARE FUSE HOLDER | Spare Fuse |
| STOP LAMP | Stoplamp |
| STR WHL DIMMING | Steering Wheel Control Button Lights |
| TILT/TELE SW/MEM SEAT MOD/TOP SW | Power Tilt Wheel, Telescopic Steering Column, Memory Seat, Driver Seat Switch, Retractable Hardtop Switch |
| TUTD SW/STRG COL SW | Tap-Up/Tap-Down Switch |
| WPR DWELL | Rainsense™ |
| Relays | Usage |
| PRK/BRK HOLD | Park Brake Hold |
| PRK/BRK RELEASE | Park Brake Release |
| F/MIR RETRACT | Not Used |
| FOG RR | Not Used |
| F/MIR EXTEND | Not Used |
| FUEL DR | Fuel Door |
| Circuit Breakers | Usage |
| PWR SEAT | Power Seats |
| DR CNTRLS | Door Controls |
Underhood Fuse Block
The underhood fuse block is located next to the engine on the passenger’s side of the vehicle.
| Fuses | Usage |
| 1 | Antilock Brake System, Electronic Suspension Control, Adaptive Forward Lighting System (AFS) |
| 2 | Horn |
| 3 | Adaptive Cruise Control (ACC), Transmission Controls |
| 4 | Windshield Wipers |
| 5 | Stop/Back-Up Lamps |
| 6 | Oxygen Sensor |
| 7 | Battery 5 |
| 8 | Parking Lamps |
| 9 | Electronic Throttle Control |
| 10 | Fuel Pump |
| 11 | Antilock Brake System |
| 12 | Odd Injectors |
| 13 | Electronic Suspension Control |
| 14 | Emission Controls |
| 15 | Air Conditioning Compressor |
| 16 | Even Injectors |
| 17 | Windshield Washer, Adaptive Forward Lighting System (AFS), Intercooler Pump |
| 18 | Headlamp Washer |
| 19 | Right Low Beam Headlamp |
| 20 | Not Used |
| 21 | Left Low Beam Headlamp |
| 22 | Fog Lamp |
| 23 | Right High Beam Headlamp |
| 24 | Left High Beam Headlamp |
| 25 | Cooling Fan |
| 26 | Battery 3 |
| 27 | Anti-Lock Brakes |
| 28 | Climate Controls |
| 29 | Battery 2 |
| 30 | Starter |
| 31 | Audio Amplifier |
| 32 | Not used |
| 33 | Battery 1 |
| 48 | Spare |
| 49 | Spare |
| 50 | Spare |
| 51 | Spare |
| 52 | Spare |
| 53 | Not Used |
| 54 | Fuse Puller |
| 56 | Engine Control Module, Transmission Control Module |
| Relays | Usage |
| 34 | Horn |
| 35 | Air Conditioning Compressor |
| 36 | Windshield Washer |
| 37 | Parking Lamps |
| 38 | Fog Lamps |
| 39 | High Beam Headlamps |
| 40 | Rear Window Defogger |
| 41 | Windshield Wiper High/Low |
| 42 | Wiper RUN/ACCESSORY Power |
| 43 | Starter/Crank |
| 44 | Ignition 1 |
| 45 | Windshield Wiper On/Off |
| 46 | Headlamp Washer |
| 47 | Low Beam Headlamps |
| 55 | Fuel Pump |
| Diodes | Usage |
 |
Diode 1 |
| |
Wiper diode |
| |
Diode 2 |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
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