Fuse box diagrams (location, arrangement, functions, purpose) in the passenger compartment and engine compartment of the Acura TL (UA8 / UA9; 2009, 2010, 2011, 2012, 2013, 2014).
Checking and replacing fuses
If something electrical in your car stops working, the first thing you should check is a blown fuse. Use the chart or diagram on the fuse box cover or fuse label to determine which fuse or fuses control that component. Check those fuses first, but check all fuses before deciding that a blown fuse is not the cause. Replace the blown fuses and see if the unit works.
- Turn the ignition key to the LOCK (0) position. Make sure the headlights and all other accessories are off.
Models equipped with the keyless entry system have an engine start/stop button instead of an ignition switch. VEHICLE OFF (LOCK). This mode is equivalent to LOCK (0). - Remove the cover from the fuse box.
- Check each of the large fuses in the underhood fuse box by looking at the wire inside. Also check the combination fuse box in the underhood fuse box.
- Check the smaller fuses in the underhood fuse box and all fuses in the interior fuse boxes by pulling each one out with the fuse puller located on the back of the underhood fuse box cover.
- Find the blown wire inside the fuse. If it is blown, replace it with a spare fuse of the same rating or lower.
If you cannot drive the car until the problem is fixed and you do not have a spare fuse, get a fuse of the same or lower rating from one of the other circuits. Make sure you can temporarily bypass that circuit (for example, from an additional outlet). If you replace a blown fuse with a spare fuse of a lower rating, it may blow again. This does not mean that something is wrong. Replace the fuse with a fuse of the correct rating as soon as possible. - If a replacement fuse of the same rating blows in a short time, your vehicle likely has a serious electrical problem. Leave the blown fuse in that circuit and have your vehicle checked by a qualified technician.
Note
Replacing a fuse with a higher rating greatly increases the chance of damaging the electrical system. If you do not have a spare fuse with the correct rating for the circuit, install a fuse with a lower rating.
Your vehicle has spare fuses on the back of the underhood fuse box cover.
Passenger compartment
Fuse box diagram #1 in the passenger compartment.
The passenger compartment fuse box is located under the instrument panel on the driver’s side. The fuse label is located under the steering column. To access the fuse box, turn the knob on the cover a quarter turn and pull the front of the cover straight down to remove it from the instrument panel.
| No. | A | Protected component |
|---|---|---|
| 1 | 7.5 | 2012-2014: Blind Spot Information (BSI) Control Unit, Left Radar Unit, Right Radar Unit |
| 2 | 7.5 | Super Handling-All Wheel Drive (SH-AWD) control unit |
| 3 | 20 | Windshield Washer Motor, Windshield Washer Relay |
| 4 | 7.5 | Windscreen wiper motor relay |
| 5 | 7.5 | Occupancy Detection System (ODS) Unit. Passenger Air Bag Off Indicator, Supplemental Restraint System (SRS) Unit |
| 6 | 7.5 | Electronic Power Steering (EPS) Control Unit, Steering Angle Sensor, VSA Modulator Control Unit. Lateral/Longitudinal Acceleration Sensor, Lateral/Longitudinal Acceleration Sensor |
| 7 | — | — |
| 8 | 7.5 | ECM/PCM (STRLD), Starter Relay |
| 9 | 20 | ECM/PCM, Electric Steering Lock, Slot Remote Control Module, Fuel Pump, Fuel Pump Control Module, Immobilizer-Keyless Control Module, Keyless Entry Control Module |
| 10 | 10 | PCM (VBSOL2) |
| 11 | 10 | Supplemental Restraint System (SRS) Unit |
| 12 | 7.5 | AcuraLink Control Module (XM Receiver), Audio Navigation Unit, Auto-Dimming Inside Mirror, Rear Light Switch, Driver Integrated Multiplex Control Unit (MICU), Electric Compass Unit, Sensor Control Module, Rear View Camera, Passenger Integrated Multiplex Control Unit (MICU), Mirror Control Unit, Power Seat Control Unit, Reverse Relay Circuit, Shift Lock Solenoid, Tire Pressure Monitoring System (TPMS) Control Unit |
| 13 | 15 | Generator, Brake Pedal Position Switch, PCM (VBASOL1), Electrical Load Sensor (ELD), Engine Mount Control Solenoid, EVAP Canister Purge Valve |
| 14 | — | — |
| 15 | 7.5 | Daytime running lights |
| 16 | 7.5 | Audio-HVAC Auxiliary Display Unit, Audio Navigation Switch Panel, Climate Control Unit, Door Multiplexer Control Unit (Power Window Master Switch), Driver Climate Control Switch, Driver Seat Heater Switch, Driver Seat Ventilation Switch, Front Passenger Seat Heater Switch, Front Passenger Ventilation Switch, Passenger Climate Control Switch, Power Mirror Switch, Seat Ventilation Control Unit |
| 17 | 7.5 | Driver Integrated Multiplex Control Unit (MICU) (ACC Key Lock) |
| 18 | 7.5 | AcuraLink Control Unit (XM Receiver), Audio Navigation Unit, Audio System, Console Accessory Power Port Relay, Front Accessory Power Port Relay, Multiplexer Integrated Control Unit (MICU) (ACC Key Lock), HandsFreeLink Control Unit, HandsFreeLink Microphone, Interface Dial, Key Lock Solenoid, Keyless Entry Control Unit, Navigation Display Unit, Remote Slot Control Unit |
| 19 | 20 | Power sliding driver’s seat (power seat control unit) |
| 20 | 20 | Sunroof Control Unit/Motor |
| 21 years old | 20 | Power reclining driver’s seat (power seat control unit) |
| 22 | 20 | Rear Left Power Window Relay, Rear Left Power Window Switch |
| 23 | 15 | Front panel accessory power connector |
| 24 | 20 | Driver’s Power Window – Power Window Master Switch (Door Multiplexer Control Unit) |
| 25 | 15 | Power Door Lock Relay Circuit, Fuel Door Open Relay Circuit, Fuel Door Opener Solenoid, Trunk Lid Opener Actuator, Trunk Lid Opener Actuator Relay Circuit |
| 26 | 10 | Front left fog light |
| 27 | 10 | Left-hand lights (parking, rear lights) |
| 28 | 10 | Left headlight high beam |
| 29 | 7.5 | Tire Pressure Monitoring System (TPMS) Control Unit |
| 30 | 15 | Low beam left headlight |
| 31 years old | — | — |
| Fuse holder | ||
| 32 | 7.5 | ECM/PCM (STS) |
| Relay | ||
| R1 | PGM-FI Home #2 | |
| R2 | Accessory | |
| Front panel accessory power connector | ||
| R3 | Starter version #1 | |
Fuse box diagram #2 in the passenger compartment
The passenger side fuse box is located on the lower passenger side panel. To remove the fuse box cover, insert your finger into the notch on the cover and gently pull it up, then pull it toward you and out of the hinges.
| No. | A | Protected component |
|---|---|---|
| 1 | 10 | Right headlight high beam |
| 2 | 10 | Right side lights (parking/tail lights) |
| 3 | 10 | Right front fog light |
| 4 | 15 | Right low beam headlight |
| 5 | — | — |
| 6 | 7.5 | Shift Position Indicator (A/T) Panel Light, Audio System, HVAC Audio Display Unit, Blind Spot Information (BSI) Off Indicator, Climate Control Unit Light, Console Light, Instrument Cluster Brightness Switch Light, Driver Climate Control Switch, Driver Footwell Light, Driver Seat Heater Switch Indicator, Driver Seat Ventilation Switch Indicator, Front Passenger Air Bag Switch Indicator, Front Passenger Seat Heater Switch Indicator, Front Passenger Ventilation Switch Indicator, Glove Box Indicator, Hazard Warning Indicator, Headlamp Washer Switch Light, Sunroof Switch, Navigation Display Unit, Passenger Footwell Light, Climate Control Switch, Individual Map Tail Lights, Roof Console, Steering Wheel Switch Light, VSA OFF Switch |
| 7 | — | — |
| 8 | 20 | Front passenger power seat tilt motor, rear front passenger power seat up/down motor |
| 9 | 20 | Front passenger electric seat up/down, front passenger electric seat sliding motor |
| 10 | 10 | Front Passenger Door Lock Actuator, Electric Door Lock Relay, Right Rear Door Lock Actuator |
| 11 | 20 | Right Rear Window Relay, Right Rear Door Power Window Motor |
| 12 | 10 | Electric Steering Lock Control Module, Engine Start/Stop Switch, Power Control Module, Slot Remote Control Module, Starter Relay 2 |
| 13 | 20 | Front passenger window switch |
| 14 | — | — |
| 15 | 20 | Sound amplifier |
| 16 | 15 | Power connector for console accessories |
| 17 | — | — |
| 18 | 7.5 | Driver’s lumbar support motor |
| 19 | 20 | Seat Ventilation Relay, Front Passenger Heating Relay, Seat Ventilation Control Unit |
| 20 | — | — |
| 21 years old | — | — |
| 22 | — | — |
Engine compartment
Engine Compartment Fuse Box Diagram
The underhood fuse box is located on the driver’s side near the air cleaner housing. To access the underhood fuse box, remove the left engine compartment cover.
| No. | A | Protected component |
|---|---|---|
| 1.1 | 120 | Battery, power supply |
| 1.2 | 40 | Fuse (Passenger Compartment Fuse Box #2): #8, 9, 10, 11, 12, 13 |
| 2.1 | 70 | Electronic Power Steering (EPS) Control Unit |
| 2.2 | 40 | VSA modulator control unit |
| 2.3 | 30 | VSA modulator control unit |
| 2.4 | 40 | Fuses (passenger compartment fuse box #2): #15, 16, 17, 18, 19, 22 (22 — 2009-2011) |
| 2.5 | 30 | Headlight Washer Motor Relay, Headlight Washer Motor Relay) |
| 2.6 | 30 | Super Handling All-Wheel Drive (SH-AWD) Relay |
| 3.1 | 50 | Ignition switch, starter cut-off relay 1, power control unit |
| 3.2 | 40 | 2009-2011 (A/T+AWD): A/C Condenser Fan Relay |
| 3.3 | 30 | Air Conditioner Condenser Fan Relay |
| 3.4 | 60 | Fuse (passenger compartment fuse box): No. 19, 20, 21, 22, 23, 24, 25 |
| 3.5 | 40 | 2009-2011 (A/T+AWD): Radiator Fan Relay |
| 30 | Radiator Fan Relay | |
| 3.6 | 30 | Fuse (passenger compartment fuse box): No. 26, 27, 28, 29, 30 |
| 3.7 | 30 | Windscreen Wiper Motor Intermittent Relay,Windscreen Wiper Motor On/Off Relay,Windscreen Wiper Motor |
| 3.8 | 30 | Fuse (Passenger Compartment Fuse Box #2): #1, 2, 3, 4 |
| 4 | 40 | Rear Window Defogger Relay, Rear Window Defogger Noise Capacitor |
| 5 | — | — |
| 6 | — | — |
| 7 | — | — |
| 8 | 40 | Fan Motor Relay |
| 9 | 15 | Hazard warning switch, driver’s multiplex integrated control unit (MICU) |
| 10 | 20 | Brake pedal position sensor, horn relay |
| 11 | 7.5 | Fuse (Passenger Compartment Fuse Box): No. 8 |
| 12 | 7.5 | 2012-2014: Battery Sensor |
| 13 | 15 | Ignition Coil Relay, Ignition Coils |
| 14 | 15 | Front Air-Fuel Ratio (A/F) Sensor (Bank 2, Sensor 1), Front Secondary Heated Oxygen Sensor (HO2S) (Bank 2, Sensor 2), PGM-FI Auxiliary Relay, Rear Air-Fuel Ratio (A/F) Sensor (Bank 1, Sensor 1), Rear Secondary Heated Oxygen Sensor (HO2S) (Bank 1, Sensor 2), Fuse (Engine Compartment Fuse Box): #21 |
| 15 | 10 | AcuraLink Control Unit (XM Receiver), Audio Navigation Unit, Audio System, Audio-HVAC Display, Data Link Connector (DLC), Driver Door Auxiliary Courtesy Light, Driver Multiplex Integrated Control Unit (MICU) (VBU), Front Passenger Door Lighting, Gauge Control Module, HandsFreeLink Control Unit, HFL Navigation Microphone, Keyless Entry Control Unit with Immobilizer, Navigation Display Unit, Passenger Multiplex Integrated Control Unit (MICU) (VBU), Power Window Master Switch, Power Seat Control Unit |
| 16 | 7.5 | Front individual map lights, ignition key light, rear map lights, trunk light, vanity mirror light |
| 17 | 15 | Crankshaft Position (CKP) Sensor, Camshaft Position (CMP) Sensor, Electronic Throttle Control System (ETCS) Relay, ECM/PCM, Mass Air Flow (MAF) Sensor, Injectors, PGM-FI Main Relay #1, PGM-FI Main Relay #2 |
| 18 | 15 | Electronic Throttle Control System (ETCS) Control Relay |
| 19 | 7.5 | ECM/PCM (VBUM) |
| 20 | 7.5 | Air Conditioning Compressor Clutch Relay |
| 21 | 7.5 | Radiator Fan Relay |
| Relay | ||
| R1 | Fan motor | |
| R2 | Air conditioner condenser fan | |
| R3 | PGM-FI Main | |
| R4 | PGM-FI Sub | |
| R5 | Ignition coil | |
| R6 | Electronic Throttle Control System (ETCS) | |
| R7 | Starter version #2 | |
| R8 | Rear window heating | |
| R9 | Air conditioning compressor clutch | |