The Acura TL 2004-2008 is a luxurious mid-sized sedan manufactured by Honda under its Acura brand. It is a well-designed car with many advanced features and reliable performance. However, like any other vehicle, it is essential to keep its electrical system in top condition to prevent unexpected malfunctions. The electrical system of the Acura TL 2004-2008 comprises various components, including the fuse box, relays, and other electrical parts. In this article, we will take a closer look at the fuse box and relay of the Acura TL 2004-2008, discussing their functions and providing helpful tips to keep them in good working condition.

MUST READ: DYI – How to Check Car Fuses?

(2004-2008) Acura TL fuse box and relay with Diagram

Passenger compartment fuse box

Acura TL 2004 2008 dashboard
Acura TL 2004 2008 dashboard
  1. Fuse Box
  2. 2007-2008: Automatic Lighting Control Unit
  3. 2004-2006: Keyless Receiver Unit
  4. Power Mirror Control Unit
  5. 2007-2008: Keyless Receiver Unit
  6. Combination Switch Control Unit
  7. 2007-2008: Fuse Box No.2

Passenger Compartment Fuse Box

Acura TL 2004 2008 passenger compartment fuse box
Acura TL 2004 2008 passenger compartment fuse box
No.AmpsAssignment/Designation
115AThrottle Actuator Control Module Relay
215AIgnition Coils, Ignition Coil (IG) Relay
315A2007-2008: Daytime Running Lights Relay
415AAir Fuel Ratio (A/F) Sensors, Secondary Heated Oxygen Sensors (HO2S), Evaporative Emission Control (EVAP) Canister Vent Shut Value (2007-2008)
520AAudio Amplifier, Audio Unit
67.5ACourtesy Lights, HandsfreeLink Control Unit, Ignition Key Light, Keyless Receiver Unit, Map Lights, Power Mirror Control Unit, Power Seat Control Unit, Roof Console, Trunk Light, Vanity Mirror Lights
77.5AAcuraLihk Control Unit (XM Receiver), Clock (without Navigation), Combination Switch Control Unit, Display Panel Control Unit, Front Passenger’s Power Window Switch/Control Unit, Gauge Control Module, Immobilizer Control Unit-Receiver, Imoes Unit (2008), Power Mirror Control Unit, Power Window Master Switch (Door Multiplex Control Unit), Security Indicator, Multiplex Integrated Control Unit (MICU)
820ATrunk Lid Opener Solenoid, Multiplex Integrated Control Unit (MICU)
915AFront Accessory Power Socket, Rear Accessory Power Socket
107.5AOccupant Detection System (ODS) Unit, Supplemental Restraint System (SRS) Unit
1130AWindshield Wiper Motor
127.5A2006-2008: Tire Pressure Monitoring System (TPMS) Control Unit
1320AFront Passenger’s Power Seat Recline Motor
1420ADriver’s Power Seat Control Unit
1520ASeat Heaters and Seat Heater Switches Indicator Light
1620ADriver’s Power Seat Control Unit, Driver’s Seat Lumbar Motor
1720AFront Passenger’s Power Seat Slide Motor
1815AAlternator, ECM/PCM (Brake Pedal Position Switch), Electrical Load Detector (ELD) Unit, Engine Mount Control Solenoid Valve, Evaporative Emission Control (EVAP) Canister Purge Valve, Evaporative Emission Control (EVAP) Vent Shut Solenoid Valve (2004-2006), Reverse Lockout Solenoid (M/T), VSA Modulator Control Unit
1915AECM/PCM, Immobilizer Control Unit-Receiver, Imoes Unit (2008), Fuel Pump (PGM-FI Main Relay 2)
207.5A2004-2005: Automatic Dimming Inside Mirror, Power Mirror Control Unit, Windshield Washer Motor
15A2006-2008: Automatic Dimming Inside Mirror, Electrical Compass Unit (without Navigation), Power Seat Control Unit, Power Mirror Control Unit, Windshield Washer Motor
217.5AAcuraLink Control Unit (XM Receiver), Automatic Lighting Control Unit, Back-up Lights (MICU or Back-up SW), Clock (without Navigation), Combination Switch Control Unit, Gauge Control Module, Keyless Receiver Unit, Multiplex Integrated Control Unit (MICU), Relay Control Module, Seat Belt Tension Reducers, Tire Pressure Monitoring System (TPMS) Control Unit, Passenger’s Airbag Cutoff Indicator
2210ASupplemental Restraint System (SRS) Unit
237.5ARadiator Fan Relay, Air Fuel Ratio (A/F) Sensor Relay
2420ALeft Rear Power Window Motor
2520ARight Rear Power Window Motor
2630AFront Passenger’s Power Window Motor
2730ADriver’s Power Window Motor
2820AMoonroof Control Unit
297.5A2007-2008: ECM/PCM (VBSOL 2)
307.5AA/C Compressor Clutch Relay, A/C Condenser Fan Relay (Diode), Blower Motor Relay, Climate Control Unit, Fan Control Relay (Diode), Power Mirror Actuators and Defoggers, Recirculation Control Motor, Rear Window Defogger Relay, Seat Heater Relay
31– –
327.5AAcuraLink Control Unit (XM Receiver), Audio Unit, Display Panel Control Unit, HandsFreeLink Control Unit, Navigation Unit (with Navigation), Shift Lock Solenoid (A/T), Accessory Power Socket Relay, Multiplex Integrated Control Unit (MICU)
33– –
Relay
R1Turn Signal / Hazard
R2Ignition Coil
R3PGM-FI Main No.1
R4Accessory Power Socket
R5PGM-FI Main No.2 (Fuel Pump)
R6Power Window
R7Air Fuel Ratio (A/F) Sensor
R82004-2006: Starter Cut
2007-2008: Fog Light

Passenger Compartment Fuse Box No.2 (2007-2008)

Acura TL 2007 2008 passenger compartment fuse box 2
Acura TL 2007 2008 passenger compartment fuse box 2
No.AmpsAssignment/Designation
357.5APCM
367.5AECM/PCM
Acura TL 2004 2008 dashboard 2
Acura TL 2004 2008 dashboard 2
  1. 2007-2008: Starter Cut Relay No.1
  2. 2007-2008: Starter Cut Relay No.2
  3. Display Panel Control Unit / Audio – HVAC Display Module
  4. Climate Control Unit
  5. Audio Unit
  6. Gauge Control Module
  7. Immobilizer Control Unit (Receiver)
  8. 2007-2008: Acc Cut Relay
  9. 2007-2008: IG2 Cut Relay
Acura TL 2004 2008 dashboard 3
Acura TL 2004 2008 dashboard 3
  1. Seat Heater Relay
  2. 2004-2006: Shift Lock Relay
  3. Throttle Actuator Control Module Relay
  4. 2008: Imoes Unit
  5. ECM/PCM
  6. Supplemental Restraint System (SRS) Unit

Engine Compartment

  2004-2006

Acura TL 2004 2006 engine compartment
Acura TL 2004 2006 engine compartment
  1. VSA Modulator Control Unit
  2. Relay Box
  3. Fuse Box

  2007-2008

Acura TL 2007 2008 engine compartment
Acura TL 2007 2008 engine compartment
  1. Relay Box
  2. Fuse Box
  3. VSA Modulator Control Unit

Engine Compartment Fuse Box

  2004-2006

Acura TL 2004 2006 engine compartment fuse box
Acura TL 2004 2006 engine compartment fuse box

  2007-2008

Acura TL 2007 2008 engine compartment fuse box
Acura TL 2007 2008 engine compartment fuse box
No.AmpsAssignment/Designation
115ALeft Headlight Low Beam
230ARear Window Defogger, Relay Control Module
37.5ALeft Headlight High Beam
410AAudio-HVAC Display Module Light, A/T Gear Position Console Light, Center Pocket Light, Dash Lights Brightness Control Switch Light, Driver’s and Front Passenger’s Door Lock Switch Light, Driving Position Memory Switch Light, Glove Box Light, Hazard Warning Switch Light, Front Parking Lights, License Plate Lights, Moonroof Switch Light, Navigation Unit, Power Mirror Switch Light, Relay Control Module, Rear Side Marker Lights, Roof Console, Seat Heater Switches Lights, Select/Reset/Information Switch Light, Side Marker Lights, Taillights, Trunk Lid Opener Switch Light, VSA OFF Switch Light, Footwell Lights
57.5ARight Headlight High Beam
615ARight Headlight Low Beam
77.5ABack Up Light, Relay Control Module
815ACrankshaft Position (CKP) Sensor A/B, Camshaft Position (CMP) Sensor, Data Link Connector (DLC), ECM/PCM (2 Wires), Injectors, PGM-FI Main Relay 1, PGM-FI Main Relay 2, Throttle Actuator Control Module Relay, Fuse (Passenger Compartment Fuse Box): “23”
930ACondenser Fan Relay
1020AUSA (2004-2006): Fog Lights Relay, Fog Lights
15ACanada (2004-2006): Daytime Running Lights Relay, Daytime Running Lights
10A2007-2008: Fog Lights Relay, Fog Lights
1130ARadiator Fan Relay
127.5AA/C Compressor Clutch Relay
1320ABrake Lights, ECM/PCM, High Mount Brake Light, Multiplex Integrated Control Unit (MICU), Horn Relay
1440ARear Window Defogger Relay
1540AFuse (Passenger Compartment Fuse Box): No. 5, 6, 7, 8, 9; Fuse (Engine Compartment Fuse Box): No. 7
1615ATurn Signal/Hazard Relay, Multiplex Integrated Control Unit (MICU)
1730AVSA Modulator Control Unit
1840AVSA Modulator Control Unit
1940AFuse (Passenger Compartment Fuse Box): No. 1, 2, 3, 4
2040AFuse (Passenger Compartment Fuse Box): No. 12, 17
2140ABlower Motor Relay
22120ABattery, Power Distribution
2350AIgnition Switch (BAT)
50APower Window Relay. Fuse (Passenger Compartment Fuse Box): No. 24, 25, 26, 27, 28
Relay
R1Radiator Fan
R2A/C Condenser Fan
R3Rear Window Defogger
R4A/C Compressor Clutch
R5Blower Motor

Engine Compartment Relay Box

Acura TL 2004 2008 engine compartment relay box
Acura TL 2004 2008 engine compartment relay box
No.Relay
R1USA (2004-2006): Fog Light
Canada (2004-2006): Daytime Running Light
2007-2008: Fan Control
R22004-2006: Fan Control
2007-2008: Daytime Running Light
Acura TL 2004 2008 sensors
Acura TL 2004 2008 sensors
  1. Tire Pressure Monitoring System (TPMS) Control Unit
  2. HandsFreeLink Control Unit
  3. AcuraLink Control Unit (XM Receiver)
  4. Navigation Unit
  5. Electrical Compass Unit

In conclusion, the Acura TL 2004-2008 is a reliable car that offers great performance and comfort. Understanding the fuse box and relay system can help in identifying and solving electrical issues. It is essential to follow the manufacturer’s guidelines for maintaining the car’s electrical system to ensure a safe and smooth driving experience. With the help of the diagrams provided, troubleshooting and repairing the fuse box and relay system can be made easier for Acura TL owners.

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