The Acura TL 2009-2014 is a luxury sedan manufactured by the Japanese automaker Acura, a division of Honda. The car is known for its sleek design, comfortable interiors, and advanced features. It comes with a host of electrical components, including the fuse box and relay, which are essential for the proper functioning of the vehicle.

In this article, we will take a closer look at the Acura TL 2009-2014 and explore the various electrical components that make it a top-rated luxury car. We will also delve into the functioning of the fuse box and relay and how they contribute to the overall performance of the vehicle.

The Fuse Box

The fuse box is a crucial component of the Acura TL 2009-2014’s electrical system. It is located in the engine compartment and houses the fuses that protect various electrical components from power surges and short circuits. The fuses in the fuse box are made of a metal wire that melts when subjected to excessive current, thereby breaking the electrical circuit and protecting the component.

In the Acura TL 2009-2014, the fuse box is divided into two parts: the under-hood fuse box and the interior fuse box. The under-hood fuse box is located on the driver’s side of the engine compartment, while the interior fuse box is located on the driver’s side of the dashboard. Both fuse boxes have a cover that can be removed to access the fuses. It is essential to replace the blown fuses with the same rating to prevent damage to the electrical components.

The Relay

The relay is another critical component of the Acura TL 2009-2014’s electrical system. It is an electromechanical switch that controls the flow of power to various electrical components. The relay operates on the principle of electromagnetic attraction, where a current passing through a coil generates a magnetic field that activates a switch.

In the Acura TL 2009-2014, there are several relays that control various functions, including the fuel pump, radiator fan, starter motor, and air conditioning compressor. The relays are located in the under-hood fuse box and are labeled for easy identification. Like the fuses, it is essential to replace the faulty relays with the same type to ensure the proper functioning of the electrical components.

(2009-2014) Acura TL fuse box and relay with Diagram

Passenger compartment

acura tl 2009 2014 dashboard
acura tl 2009 2014 dashboard
  1. Fuse Box
  2. Keyless Access Junction Box
  3. Driver’s Junction Box No.2
  4. Center Junction Box
  5. Gauge Control Module
  6. ’12-’14: Seat Ventilation Control Unit

Passenger Compartment Fuse Box

acura tl 2009 2014 passenger compartment fuse box
acura tl 2009 2014 passenger compartment fuse box
No.AmpsAssignment/Designation
17.5A’12-’14: Blind Spot Information (BSI) Control Unit, Left Radar Unit, Right Radar Unit
27.5ASuper Handling-All Wheel Drive (SH-AWD) Control Unit
320AWindshield Washer Motor, Windshield Washer Relay
47.5AWindshield Wiper Motor Relay
57.5AOccupant Detection System (ODS) Unit. Passenger’s Airbag Cutoff Indicator, Supplemental Restraint System (SRS) Unit
67.5AElectronic Power Steering (EPS) Control Unit, Steering Angle Sensor, VSA Modulator Control Unit. Yaw Ratelateral Acceleration Sensor, Yaw Rate-Lateral/Longitudinal Acceleration Sensor
7 –
87.5AECM/PCM (STRLD), Starter Relay
920AECM/PCM, Electric Steering Lock, Remote Slot Control Unit, Fuel Pump, Fuel Pump Control Module, Immobilizer-Keyless Control Unit, Keyless Access Control Unit
1010APCM (VBSOL2)
1110ASupplemental Restraint System (SRS) Unit
127.5AAcuraLink Control Unit (XM Receiver), Audio-Navigation Unit, Automatic Dimming Inside Mirror, Back-Up Light Switch, Driver’s Multiplex Integrated Control Unit (MICU), Electrical Compass Unit, Gauge Control Module, Rear Camera, Passenger’s Multiplex Integrated Control Unit (MICU), Powermirror Control Unit, Power Seat Control Unit, Reverse Relay Circuit, Shift Lock Solenoid, Tire Pressure Monitoring System (TPMS) Control Unit
1315AAlternator, Brake Pedal Position Switch, PCM (VBASOL1), Electrical Load Detector (ELD), Engine Mount Control Solenoid Valve, Evaporative Emission Control (EVAP) Canister Purge Valve
14 –
157.5ADaytime Running Lights
167.5AAudio-HVAC Subdisplay Unit, Audio-Navigation Switch Panel, Climate Control Unit, Door Multiplex Control Unit (Power Window Master Switch), Driver’s Climate Control Switch, Driver’s Seat Heater Switch, Driver’s Seat Ventilation Switch, Front Passenger’s Seat Heater Switch, Front Passenger’s Ventilation Switch, Passenger’s Climate Control Switch, Power Mirror Switch, Seat Ventilation Control Unit
177.5ADriver’s Multiplex Integrated Control Unit (MICU) (ACC Key Lock)
187.5AAcuraLink Control Unit (XM Receiver), Audio-Navigation Unit, Audio Unit, Console Accessory Power Socket Relay, Front Accessory Power Socket Relay, Driver’s Multiplex Integrated Control Unit (MICU) (ACC Key Lock), HandsFreeLink Control Unit, HandsFreeLink Microphone, Interface Dial, Key Interlock Solenoid, Keyless Access Control Unit, Navigation Display Unit, Remote Slot Control Unit
1920ADriver’s Power Seat Sliding (Power Seat Control Unit)
2020AMoonroof Control Unit/Motor
2120ADriver’s Power Seat Reclining (Power Seat Control Unit)
2220ALeft Rear Power Window Relay, Left Rear Power Window Switch
2315AFront Accessory Power Socket
2420ADriver’s Power Window – Power Window Master Switch (Door Multiplex Control Unit)
2515APower Door Lock Relay Circuit, Fuel Fill Door Open Relay Circuit, Fuel Fill Door Opener Solenoid, Trunk Lid Release Actuator, Trunk Lid Release Actuator Relay Circuit
2610AFront Left Fog Ligh
2710ALeft Side Small Lights (Parking, Tail Lights)
2810ALeft Headlight High Beam
297.5ATire Pressure Monitoring System (TPMS) Control Unit
3015ALeft Headlight Low Beam
31 –
Fuse Holder
327.5AECM/PCM (STS)
Relay
R1PGM-FI Main No.2
R2Accessory
Front Accessory Power Socket
R3Starter Cut No.1
acura tl 2009 2014 dashboard 2
acura tl 2009 2014 dashboard 2
  1. Audio Unit or Audio-Navigation Unit
  2. Navigation Display Unit or Audio-HVAC Display Unit
  3. Acuralink Control Unit (XM Receiver)
  4. EPS Control Unit
  5. Fuse Box No.2
  6. Climate Control Unit
  7. HandsFreeLink Control Unit

Passenger Compartment Fuse Box No.2

acura tl 2009 2014 passenger compartment fuse box 2
acura tl 2009 2014 passenger compartment fuse box 2
No.AmpsAssignment/Designation
110ARight Headlight High Beam
210ARight Side Small Lights (Parking/Tail Lights)
310ARight Front Fog Light
415ARight Headlight Low Beam
5 –
67.5AA/T Gear Position Indicator Panel Light (A/T), Audio Unit, Audio-HVAC Display Unit, Blind Spot Information (BSI) Off Switch Light, Climate Control Unit Light, Console Box Light, Dashlights Brightness Controller Switch Light, Driver’s Climate Control Switch, Driver’s Footwell Light, Driver’s Seat Heater Switch Light, Driver’s Seat Ventilation Switch Light, Front Passenger’s Airbag Cutoff Switch Light, Front Passenger’s Seat Heater Switch Light, Front Passenger’s Seat Ventilation Switch Light, Glove Box Light, Hazard Warning Switch Light, Headlight Washer Switch Light, Moonroof Switch Light, Navigation Display Unit, Passenger’s Footwell Light, Passenger’s Climate Control Switch, Rear Individual Map Lights, Roof Console, Steering Wheel Switch Lights, VSA OFF Switch Light
7 –
820AFront Passenger’s Power Seat Recline Motor, Front Passenger’s Power Seat Rear Up-Down Motor
920AFront Passenger’s Power Seat Front Up-Down Motor, Front Passenger’s Power Seat Slide Motor
1010AFront Passenger’s Door Lock Actuator, Power Door Lock Relay, Right Rear Door Lock Actuator
1120ARight Rear Power Window Relay, Right Rear Power Window Motor
1210AElectric Steering Lock Control Unit, Engine Start/Stop Switch, Power Control Unit, Remote Slot Control Unit, Starter Cut Relay 2
1320AFront Passenger’s Power Window Switch
14 –
1520AAudio Amplifier
1615AConsole Accessory Power Socket
17 –
187.5ADriver’s Lumbar Support Motor
1920ASeat Ventilation Relay, Front Passenger’s Heater Relays, Seat Ventilation Control Unit
20 –
21 –
22 –
acura tl 2009 2014 dashboard 3
acura tl 2009 2014 dashboard 3
  1. Keyless Access Control Unit
  2. Power Control Unit
  3. Electric Steering Lock
  4. ’12-’14: Headlight Washer Motor Relay
    ’12-’14: Front Accessory Power Soket Relay
  5. ’12-’14: +B Cut Relay (Manual Transmission + with Keyless Access System)
    ’12-’14: Seat Ventilation Relay
    ’12-’14: IG Cut Relay (without Keyless Access System)
    ’09-’11: Headlight Washer Motor Relay
    ’09-’11: Front Accessory Power Soket Relay
  6. ’09-’11: IG Cut Relay (without Keyless Access System)
  7. Remote Slot Control Unit (with Keyless Access System)
  8. Supplemental Restraint System (SRS) Unit
  9. RF Unit (with Keyless Access System)
  10. ’09-’11: ACC Cut Relay (without Keyless Access System)
    ’09-’11: Front Accessory Power Soket Relay (with Keyless Access System)
  11. ’12-’14: Front Accessory Power Soket Relay (with Keyless Access System)
    ’12-’14: ACC Cut Relay (without Keyless Access System)
    ’09-’11: Console Power Socket Relay
  12. ’12-’14: Console Power Socket Relay
  13. Tire Pressure Monitoring System (TPMS) Control Unit

Engine Compartment

acura tl 2009 2014 engine
acura tl 2009 2014 engine
  1. Fuse Box
  2. ’12-’14: Battery Sensor
  3. ECM/PCM
  4. VSA Modulator Control Unit

Engine Compartment Fuse Box

acura tl 2009 2014 engine compartment fuse box
acura tl 2009 2014 engine compartment fuse box
No.AmpsAssignment/Designation
1.1120ABattery, Power Supply
1.240AFuse (Passenger Compartment Fuse Box No.2): No. 8, 9, 10, 11, 12, 13
2.170AElectronic Power Steering (EPS) Control Unit
2.240AVSA Modulator Control Unit
2.330AVSA Modulator Control Unit
2.440AFuse (Passenger Compartment Fuse Box No.2): No. 15, 16, 17, 18, 19, 22 (22 – ’09-’11)
2.530AHeadlight Washer Motor Relay, Headlight Washer MotorMotor Relay)
2.630ASuper Handling-All Wheel Drive (SH-AWD) Relay
3.150AIgnition Switch, Starter Cut Relay 1, Power Control Unit
3.240A’09-’11 (A/T + AWD): A/C Condenser Fan Relay
3.330AA/C Condenser Fan Relay
3.460AFuse (Passenger Compartment Fuse Box): No. 19, 20, 21, 22, 23, 24, 25
3.540A’09-’11 (A/T + AWD): Radiator Fan Relay
30ARadiator Fan Relay
3.630AFuse (Passenger Compartment Fuse Box): No. 26, 27, 28, 29, 30
3.730AWindshield Wiper Motor Intermittent Relay, Windshield Wiper Motor High/Low Relay, Windshield Wiper Motor
3.830AFuse (Passenger Compartment Fuse Box No.2): No. 1, 2, 3, 4
440ARear Window Defogger Relay, Rear Window Defogger Noise Condenser
5 –
6 –
7 –
840ABlower Motor Relay
915AHazard Warning Switch, Driver’s Multiplex Integrated Control Unit (MICU)
1020ABrake Pedal Position Switch, Horn Relay
117.5AFuse (Passenger Compartment Fuse Box): No. 8
127.5A’12-’14: Battery Sensor
1315AIgnition Coil Relay, Ignition Coils
1415AFront Air Fuel Ratio (A/F) Sensor (Bank 2, Sensor 1), Front Secondary Heated Oxygen Sensor (HO2S) (Bank 2, Sensor 2), PGM-FI Sub Relay, Rear Air Fuel Ratio (A/F) Sensor (Bank 1, Sensor 1), Rear Secondary Heated Oxygen Sensor (HO2S) (Bank1, Sensor 2), Fuse (Engine Compartment Fuse Box): No. 21
1510AAcuraLink Control Unit (XM Receiver), Audio-Navigation Unit, Audio Unit, Audio-HVAC Display Unit, Data Link Connector (DLC), Driver’s Door Courtesy Light, Driver’s Multiplex Integrated Control Unit (MICU) (VBU), Front Passenger’s Door Courtesy Light, Gauge Control Module, HandsFreeLink Control Unit, HFL-Navigation Microphone, Immobilizer-Keyless Control Unit, Navigation Display Unit, Passenger’s Multiplex Integrated Control Unit (MICU) (VBU), Power Window Master Switch, Power Seat Control Unit
167.5AFront Individual Map Lights, Ignition Key Light, Rear Individual Map Lights, Trunk Light, Vanity Mirror Lights
1715ACrankshaft Position (CKP) Sensor, Camshaft Position (CMP) Sensor, Electronic Throttle Control System (ETCS) Control Relay, ECM/PCM, Mass Airflow (MAF) Sensor, Injectors, PGM-FI Main Relay No.1, PGM-FI Main Relay No.2
1815AElectronic Throttle Control System (ETCS) Control Relay
197.5AECM/PCM (VBUM)
207.5AA/C Compressor Clutch Relay
217.5ARadiator Fan Relay
Relay
R1Blower Motor
R2A/C Condenser Fan
R3PGM-FI Main
R4PGM-FI Sub
R5Ignition Coil
R6Electronic Throttle Control System (ETCS) Control
R7Starter Cut No.2
R8Rear Window Defogger
R9A/C Compressor Clutch
acura tl 2009 2014 sensors and modules
acura tl 2009 2014 sensors and modules
  1. Roof Console (HomeLink Unit)
  2. Super Handling-All Wheel Drive (SH-AWD) Relay
  3. Super Handling-All Wheel Drive (SH-AWD) Control Unit
  4. Audio Amplifier
  5. ’09-’11: RF Unit No.2
  6. ’12-’14: Right BSI Radar Unit
  7. Electrical Compass Unit
  8. ’12-’14: Left BSI Radar Unit
  9. ’12-’14: BSI Control Unit
  10. ’09-’11: Fuel Pump Control Unit (with SH-AWD)
  11. Moonroof Control Unit/Motor

In conclusion, the Acura TL 2009-2014 is an exceptional luxury sedan that boasts advanced features and a sleek design. Its electrical system comprises various components, including the fuse box and relay, which are essential for the proper functioning of the vehicle. Understanding the functioning of these components can help car owners diagnose and repair electrical faults, thereby ensuring the smooth performance of their Acura TL.

Similar

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.