Table of Contents
This guide provides a comprehensive overview of the fuse block diagrams for the first-generation Acura TSX (CL9 chassis), covering the 2003, 2004, 2005, 2006, 2007, and 2008 model years.
Fuse No. 9 in the passenger compartment fuse box protects the cigarette lighter and accessory power socket circuits.
Engine Compartment
General layout of electronic control modules within the Acura TSX engine compartment.
|
|
| No. | Unit |
| 1 | VSA Modulator Unit |
| 2 | 2006–2008: Relay Box |
| 3 | Under-Hood Fuse Box |
Fuse Box
Located on the driver’s side, near the rear bulkhead of the engine compartment.
To access the fuses, depress the retaining tabs to remove the cover.
| Diagram | ||
|---|---|---|
|
||
| No. | Description | Amps |
| R1 | Radiator Fan Relay | - |
| R2 | A/C Condenser Fan Relay | - |
| R3 | Rear Window Defogger Relay | - |
| R4 | A/C Compressor Clutch | - |
| R5 | Blower Motor Relay | - |
| 1 | Left Headlight (Low Beam) | 15 A |
| 2 | Rear Window Defogger, Relay Control Module (with Climate Control System) | 30 A |
| 3 | Left Headlight (High Beam) | 10 A |
| 4 | Audio-HVAC Display Light, A/T Gear Position Console Light, Center Pocket Light, Driving Position Memory Switch, Front Parking Lights, Glove Box Light, Hazard Warning Switch Light, Sunroof Switch Light, Navigation System, Relay Control Module, Rear Side Marker Lights, Seat Heater Switch Light, Taillights, VSA OFF Switch Light | 15 A |
| 5 | Right Headlight (High Beam) | 10 A |
| 6 | Right Headlight (Low Beam) | 15 A |
| 7 | Backup Lights, Relay Control Module | 7.5 A |
| 8 | Crankshaft Position (CKP) Sensor, Camshaft Position (CMP) Sensor B, ECM/PCM (2 Wires), Injectors, PGM-FI Main Relay, Throttle Actuator Control Module Relay | 15 A |
| 9 | A/C Condenser Fan Motor and Clutch (A/C Condenser Fan Relay and Clutch Relay) | 20 A |
| 10 |
|
20 A |
| 11 | Radiator Fan Relay | 20 A |
| 12 | Empty | - |
| 13 | Brake Lights, ECM/PCM, High Mount Brake Light, Ignition Key Light, Multiplex Integrated Control Unit (MICU), Horns (Relay Control Module) | 20 A |
| 14 | Noise Condenser, Rear Window Defogger (Rear Window Defogger Relay) | 40 A |
| 15 | Interior Fuse Box: Fuses No. 5, 9; Under-Hood Fuse Box: Fuse No. 7 |
40 A |
| 16 | Turn Signal/Hazard Relay | 15 A |
| 17 | VSA Modulator Unit | 30 A |
| 18 | 40 A | |
| 19 | Interior Fuse Box: Fuses No. 1, 4 | 40 A |
| 20 | Interior Fuse Box: Fuses No. 13, 17 | 40 A |
| 21 | Blower Motor Relay | 40 A |
| 22 | Main: Battery, Power Distribution | 100 A |
| 23 | Ignition Switch | 50 A |
|
50 A | |
Relay Box
Located adjacent to the under-hood fuse box (2006–2008 models only).
|
|
| No. | Description |
| R1 | Fog Light Relay |
| R2 | Daytime Running Lights (DRL) Relay |
Passenger Compartment
General layout of electronic control modules within the Acura TSX passenger compartment.
|
|
| 1 | Interior Fuse Box |
| 2 | Tire Pressure Monitoring System (TPMS) Control Module (2007–2008) |
| 3 | Combination Switch Control Unit |
|
|
| 1 | Throttle Actuator Control Module Relay |
| 2 | Seat Heater Relay |
| 3 | Throttle Actuator Control Module |
| 4 | HandsFreeLink (HFL) Control Unit |
| 5 | ECM/PCM |
| 6 | Supplemental Restraint System (SRS) Control Unit |
|
|
| 1 | Immobilizer Control Unit-Receiver |
| 2 | Audio-HVAC Display Module |
| 3 | IMOES Unit (2007–2008) |
Interior Fuse Box
Located under the driver’s side dashboard.
To access the fuses, pull the cover lid toward you to remove it.
General view of the interior fuse block.
| Diagram | ||
|---|---|---|
|
||
| No. | Description | Amps |
| R1 | Empty | - |
| R2 | Ignition Coil Relay | - |
| R3 | PGM-FI Main Relay 1 | - |
| R4 | Accessory Power Socket Relay | - |
| R5 | PGM-FI Main Relay 2 (Fuel Pump Relay) | - |
| R6 | Power Window Relay | - |
| R7 | Air/Fuel (A/F) Ratio Sensor Relay | - |
| R8 | Starter Cut Relay | - |
| 1 | Throttle Actuator Control Module (Throttle Actuator Control Module Relay) | 15 A |
| 2 | Ignition Coils (Ignition Coil Relay), Ignition Coil (IG) Relay | 15 A |
| 3 | Daytime Running Lights (DRL) Relay | 10 A |
| 4 | Air/Fuel Ratio Sensor (Sensor 1), Evaporative Emission (EVAP) Canister Vent Shut Valve (2006–2008) | 10 A |
| 5 | Audio Amplifier | 20 A |
| 6 | Ambient Light, Audio Unit, Ceiling Light, Courtesy Lights, HandsFreeLink System (2006–2008) | 10 A |
| 7 | Combination Switch Control Unit, Gauge Control Module, Immobilizer Control Unit-Receiver, IMOES Unit, Navigation Display Unit, Driving Position Memory Switch Indicator (2006–2008), Navigation Unit, Power Seat Control Unit (2006–2008), Power Window Master Switch, Multiplex Integrated Control Unit (MICU) | 10 A |
| 8 | Trunk Lid Opener Solenoid, Multiplex Integrated Control Unit (MICU) | 20 A |
| 9 | Console Accessory Power Socket, Front Accessory Power Socket, Cigarette Lighter | 15 A |
| 10 | Occupant Position Detection System (2003–2005), Occupant Detection System (2006–2008), Supplemental Restraint System (SRS) | 7.5 A |
| 11 | Windshield Wiper Motor | 30 A |
| 12 | Tire Pressure Monitoring System (2007–2008) | 7.5 A |
| 13 | Front Passenger's Power Seat Recline Motor, Driver's Power Seat Adjustment Switch (2005–2008) | 20 A |
| 14 | Driver's Power Seat Front Up-Down Motor, Driver's Power Seat Adjustment Switch, Driver's Power Seat Side Motor | 20 A |
| 15 | Seat Heaters, Seat Heater Relay, Seat Heater Switches Indicator | 20 A |
| 16 | Driver's Power Seat Rear Up-Down Motor, Driver's Power Seat Adjustment Switch and Recline Motor, Power Seat Control Module (2006–2008) | 20 A |
| 17 | Front Passenger's Power Seat Slide Motor and Adjustment Switch (2005–2008) | 20 A |
| 18 | Alternator, Camshaft Position (CMP) Sensor A, ECM/PCM (Brake Pedal Position Switch), Electrical Load Detector (ELD) Unit, Engine Mount Control Solenoid Valve, Evaporative Emission (EVAP) Canister Purge Valve, Evaporative Emission (EVAP) Vent Shut Valve (2003–2005), Power Seat Control Unit (2006–2008), Reverse Lockout Solenoid Valve (M/T), Secondary Heated Oxygen Sensor, VSA Modulator Control Unit | 15 A |
| 19 | ECM/PCM, Immobilizer Control Unit-Receiver, IMOES Unit, Fuel Pump Fuse (PGM-FI Main Relay 2) | 15 A |
| 20 | Windshield Washer Motor | 10 A |
| 21 | Automatic Dimming Inside Mirror, Backup Lights, Combination Switch Control Unit, Door Multiplex Control Unit, Gauge Control Module, Multiplex Integrated Control Unit (MICU), Tire Pressure Monitoring System (TPMS), Relay Control Module | 7.5 A |
| 22 | Supplemental Restraint System (SRS) | 10 A |
| 23 | Air/Fuel (A/F) Ratio Sensor Relay, ECM/PCM | 7.5 A |
| 24 | Left Rear Power Window Motor and Switch | 20 A |
| 25 | Right Rear Power Window Motor and Switch | 20 A |
| 26 | Front Passenger's Power Window Motor and Switch | 20 A |
| 27 | Driver's Power Window Motor and Switch | 20 A |
| 28 | Sunroof Motor and Open/Close Relays | 20 A |
| 29 | Empty | - |
| 30 | A/C Compressor Clutch Relay and Fan Relay, Blower Motor Relay, Climate Control System (Audio-HVAC Display Module), Power Mirror Actuator (Power Mirror Switch), Power Mirror Defoggers (Power Mirror Switch), Radiator Fan Relay, Rear Window Defogger Relay, Recirculation Control Motor, Seat Heater Relay | 7.5 A |
| 31 | Empty | - |
| 32 | HandsFreeLink System (2006–2008), Accessory Power Socket Relay, Audio Unit (Audio-HVAC Display Module), Navigation Display (Audio-HVAC Display Module), Navigation System, Shift Lock Solenoid (A/T), Audio Amplifier, Multiplex Integrated Control Unit (MICU) | 7.5 A |
| 33 | Empty | - |
Body Electrical Components
Layout of body electrical control modules.
|
|
| 1 | XM Satellite Radio Receiver |
| 2 | Navigation Module |
| 3 | Sunroof Close Relay |
| 4 | Sunroof Open Relay |