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.
(2004-2008) Acura TL fuse box and relay with Diagram
Passenger compartment fuse box
- Fuse Box
- 2007-2008: Automatic Lighting Control Unit
- 2004-2006: Keyless Receiver Unit
- Power Mirror Control Unit
- 2007-2008: Keyless Receiver Unit
- Combination Switch Control Unit
- 2007-2008: Fuse Box No.2
Passenger Compartment Fuse Box
| No. | Amps | Assignment/Designation |
| 1 | 15A | Throttle Actuator Control Module Relay |
| 2 | 15A | Ignition Coils, Ignition Coil (IG) Relay |
| 3 | 15A | 2007-2008: Daytime Running Lights Relay |
| 4 | 15A | Air Fuel Ratio (A/F) Sensors, Secondary Heated Oxygen Sensors (HO2S), Evaporative Emission Control (EVAP) Canister Vent Shut Value (2007-2008) |
| 5 | 20A | Audio Amplifier, Audio Unit |
| 6 | 7.5A | Courtesy 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 |
| 7 | 7.5A | AcuraLihk 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) |
| 8 | 20A | Trunk Lid Opener Solenoid, Multiplex Integrated Control Unit (MICU) |
| 9 | 15A | Front Accessory Power Socket, Rear Accessory Power Socket |
| 10 | 7.5A | Occupant Detection System (ODS) Unit, Supplemental Restraint System (SRS) Unit |
| 11 | 30A | Windshield Wiper Motor |
| 12 | 7.5A | 2006-2008: Tire Pressure Monitoring System (TPMS) Control Unit |
| 13 | 20A | Front Passenger’s Power Seat Recline Motor |
| 14 | 20A | Driver’s Power Seat Control Unit |
| 15 | 20A | Seat Heaters and Seat Heater Switches Indicator Light |
| 16 | 20A | Driver’s Power Seat Control Unit, Driver’s Seat Lumbar Motor |
| 17 | 20A | Front Passenger’s Power Seat Slide Motor |
| 18 | 15A | Alternator, 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 |
| 19 | 15A | ECM/PCM, Immobilizer Control Unit-Receiver, Imoes Unit (2008), Fuel Pump (PGM-FI Main Relay 2) |
| 20 | 7.5A | 2004-2005: Automatic Dimming Inside Mirror, Power Mirror Control Unit, Windshield Washer Motor |
| 15A | 2006-2008: Automatic Dimming Inside Mirror, Electrical Compass Unit (without Navigation), Power Seat Control Unit, Power Mirror Control Unit, Windshield Washer Motor | |
| 21 | 7.5A | AcuraLink 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 |
| 22 | 10A | Supplemental Restraint System (SRS) Unit |
| 23 | 7.5A | Radiator Fan Relay, Air Fuel Ratio (A/F) Sensor Relay |
| 24 | 20A | Left Rear Power Window Motor |
| 25 | 20A | Right Rear Power Window Motor |
| 26 | 30A | Front Passenger’s Power Window Motor |
| 27 | 30A | Driver’s Power Window Motor |
| 28 | 20A | Moonroof Control Unit |
| 29 | 7.5A | 2007-2008: ECM/PCM (VBSOL 2) |
| 30 | 7.5A | A/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 | – | – |
| 32 | 7.5A | AcuraLink 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 | ||
| R1 | Turn Signal / Hazard | |
| R2 | Ignition Coil | |
| R3 | PGM-FI Main No.1 | |
| R4 | Accessory Power Socket | |
| R5 | PGM-FI Main No.2 (Fuel Pump) | |
| R6 | Power Window | |
| R7 | Air Fuel Ratio (A/F) Sensor | |
| R8 | 2004-2006: Starter Cut | |
| 2007-2008: Fog Light | ||
Passenger Compartment Fuse Box No.2 (2007-2008)
| No. | Amps | Assignment/Designation |
| 35 | 7.5A | PCM |
| 36 | 7.5A | ECM/PCM |
- 2007-2008: Starter Cut Relay No.1
- 2007-2008: Starter Cut Relay No.2
- Display Panel Control Unit / Audio – HVAC Display Module
- Climate Control Unit
- Audio Unit
- Gauge Control Module
- Immobilizer Control Unit (Receiver)
- 2007-2008: Acc Cut Relay
- 2007-2008: IG2 Cut Relay
- Seat Heater Relay
- 2004-2006: Shift Lock Relay
- Throttle Actuator Control Module Relay
- 2008: Imoes Unit
- ECM/PCM
- Supplemental Restraint System (SRS) Unit
Engine Compartment
2004-2006
- VSA Modulator Control Unit
- Relay Box
- Fuse Box
2007-2008
- Relay Box
- Fuse Box
- VSA Modulator Control Unit
Engine Compartment Fuse Box
2004-2006
2007-2008
| No. | Amps | Assignment/Designation |
| 1 | 15A | Left Headlight Low Beam |
| 2 | 30A | Rear Window Defogger, Relay Control Module |
| 3 | 7.5A | Left Headlight High Beam |
| 4 | 10A | Audio-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 |
| 5 | 7.5A | Right Headlight High Beam |
| 6 | 15A | Right Headlight Low Beam |
| 7 | 7.5A | Back Up Light, Relay Control Module |
| 8 | 15A | Crankshaft 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” |
| 9 | 30A | Condenser Fan Relay |
| 10 | 20A | USA (2004-2006): Fog Lights Relay, Fog Lights |
| 15A | Canada (2004-2006): Daytime Running Lights Relay, Daytime Running Lights | |
| 10A | 2007-2008: Fog Lights Relay, Fog Lights | |
| 11 | 30A | Radiator Fan Relay |
| 12 | 7.5A | A/C Compressor Clutch Relay |
| 13 | 20A | Brake Lights, ECM/PCM, High Mount Brake Light, Multiplex Integrated Control Unit (MICU), Horn Relay |
| 14 | 40A | Rear Window Defogger Relay |
| 15 | 40A | Fuse (Passenger Compartment Fuse Box): No. 5, 6, 7, 8, 9; Fuse (Engine Compartment Fuse Box): No. 7 |
| 16 | 15A | Turn Signal/Hazard Relay, Multiplex Integrated Control Unit (MICU) |
| 17 | 30A | VSA Modulator Control Unit |
| 18 | 40A | VSA Modulator Control Unit |
| 19 | 40A | Fuse (Passenger Compartment Fuse Box): No. 1, 2, 3, 4 |
| 20 | 40A | Fuse (Passenger Compartment Fuse Box): No. 12, 17 |
| 21 | 40A | Blower Motor Relay |
| 22 | 120A | Battery, Power Distribution |
| 23 | 50A | Ignition Switch (BAT) |
| 50A | Power Window Relay. Fuse (Passenger Compartment Fuse Box): No. 24, 25, 26, 27, 28 | |
| Relay | ||
| R1 | Radiator Fan | |
| R2 | A/C Condenser Fan | |
| R3 | Rear Window Defogger | |
| R4 | A/C Compressor Clutch | |
| R5 | Blower Motor | |
Engine Compartment Relay Box
| No. | Relay |
| R1 | USA (2004-2006): Fog Light |
| Canada (2004-2006): Daytime Running Light | |
| 2007-2008: Fan Control | |
| R2 | 2004-2006: Fan Control |
| 2007-2008: Daytime Running Light |
- Tire Pressure Monitoring System (TPMS) Control Unit
- HandsFreeLink Control Unit
- AcuraLink Control Unit (XM Receiver)
- Navigation Unit
- 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.
