Acura TL (1999-2003) Fuse Diagram


Fuse box diagrams (layout, location, function, assignment) in the cabin and engine compartment of Acura TL (1999, 2000, 2001, 2002, 2003).

Acura TL (1999-2003)

Checking and Replacing Fuses

If something electrical in your car stops working, the first thing you should check for is a blown fuse. Determine from the chart or the diagram on the fuse box lid, which fuse or fuses control that component. Check those fuses first, but check all the fuses before deciding that a blown fuse is not the cause. Replace any blown fuses and check the component’s operation.

  1. Turn the ignition switch to LOCK (0). Make sure the headlights and all other accessories are off.
  2. Remove the cover from the fuse box.
  3. Check each of the large fuses in the under-hood fuse box by looking through the top at the wire inside.
  4. Check the smaller fuses in the under-hood fuse box and all the fuses in the interior fuse boxes by pulling out each fuse with the fuse puller provided in the under-hood fuse box.
  5. Look for a burned wire inside the fuse. If it is burned, replace it with one of the spare fuses of the same rating or lower.
    If you cannot drive the car without fixing the problem, and you do not have a spare fuse, take a fuse of the same rating or a lower rating from one of the other circuits. Make sure you can do without that circuit temporarily (such as the accessory power socket or radio). If you replace the blown fuse with a spare fuse that has a lower rating, it might blow out again. This does not indicate anything wrong. Replace the fuse with one of the correct rating as soon as you can.
  6. If the replacement fuse of the same rating blows in a short time, there is probably a serious electrical problem in your car. Leave the blown fuse in that circuit and have your car checked by a qualified mechanic.

Replacing a fuse with one that has a higher rating greatly increases the chances of damaging the electrical system. If you do not have a replacement fuse with the proper rating for the circuit, install one with a lower rating.

Passenger Compartment Overview

Passenger Compartment Overview 1

  1. Fuse Box №1
  2. Driver’s Multiplex Control Unit
  3. Moon Roof Close Relay
  4. Moon Roof Open Relay
  5. PGM-FI Main Relay
  6. Cruise Control Unit
  7. Daytime Running Light Control Unit
  8. Supplemental Restraint System (SRS) Unit

Passenger Compartment Overview 2

  1. BOSE Equalizer Unit
  2. Powertrain Control Module (PCM)
  3. Fuse Box №2
  4. Navigation Relay
    High Beam Cut Relay (with Daytime Running Light (1999-2001))
  5. 1999-2001: Taillight Relay
    2002-2003: Navigation Relay
  6. ABS/TCS Control Unit


Passenger Compartment Fuse Box №1 Diagram

The interior fuse boxes are located on each side of the dashboard. To open an interior fuse box, open the car door. Pull the bottom of the cover open, then take it out of its side hinges by pulling it toward you.Passenger Compartment Fuse Box №1 location Passenger Compartment Fuse Box №1 Diagram

AProtected Component
115PGM-FI Main Relay, Supplemental Restraint System (SRS) Unit
210Supplemental Restraint System (SRS) Unit
37.5HVAC, Radiator Fan Control Module, Rear Window Defogger Relay, Fan Control Relay (Type S)
47.5ABS-TCS Control Unit, (except Type S), Power Mirror Defoggers, Power Mirrors, Option Connector S, Seat Heater Relay, VSA Control Unit (Type S)
57.5Daytime Running Lights (DRL) Control Unit
615Charging System, Cruise Control, Electrical Load Detector (ELD) Unit, Engine Mount Control System, Evaporative Emission Control System, PCM (VBSOL), Primary and Secondary Heated Oxygen Sensor (HO2S), Radiator Fan Control Module, VSP Sensor (1999 with Navigation), Cruise Control/TCS Switch (except Type S) or Cruise Control/VSA Off Switch (Type S) Indicator Light, Intake Manifold Runner Control (IMRC) Module (Type S), VSA Control Unit (Type S)
77.5Occupant Position Detection System (OPDS) Unit (2000-2002), Shift Lock Relay (1999), Wiper/Washer (1999)
87.5Accessory Power Socket Relay, Navigation System, Option Connector R, Shift Lock Solenoid
97.5Automatic Dimming Inside Mirror, Brake Light Failure Sensor, Clock (without Navigation), Driver’s and Passenger’s Multiplex Control Units, Daytime Running Lights (DRL) Indicator, Gauge Assembly, Reverse Relay, Shift Lock Relay (2000-2002)
107.5Turn Signal/Hazard Relay
1115Ignition Coils
137.5Starter Signal, PGM-FI Main Relay, Powertrain Control Module (PCM)
R1Starter Cut
R3Turn Signal/Hazard

Passenger Compartment Fuse Box №2 Diagram

Passenger Compartment Fuse Box №2 Diagram

AProtected Component
1301999-2001: Moonroof Close and Open Relays
202002-2003: Power Window Control Unit (Driver’s Power Window)
2201999-2001: Driver's Power Seat Adjustment Switch (Reclining)
202002-2003: Power Seat Control Unit (Reclining)
320Seat Heater Relay
4201999-2001: Driver's Power Seat Adjustment Switch (Slide)
202002-2003: Power Seat Control Unit (Slide)
520Front Passenger’s Power Seat Adjustment Switch (Slide), Passenger’s Multiplex Control Unit
620Front Passenger’s Power Seat Adjustment Switch(Reclining)
720Left Rear Power Window Switch, Door Multiplex Control Unit (2002-2003), Moonroof Close And Open Relays, Power Window Control Unit (2002-2003)
820Front Passenger’s Power Window Switch
920Accessory Power Socket Relay, Audio Unit, Front Accessory Power Socket, Rear Accessory Power Socket, Stereo Amplifier
1010Daytime Running Lights (DRL) Control Unit, Navigation Display Unit, Navigation Relay (’99), Navigation Unit
117.5Ceiling Light, Driver’s and Front Passenger’s Door Courtesy Light, Passenger’s Multiplex Control Unit, Trunk Lid Opener Maint, Power Seat Control Unit (2002-2003), Spotlights, Trunk Light
1220Power Door Lock, Passenger's Multiplex Controlu Unit, Trunk Lid Opener Main
137.5Climate Control Unit, Clock (except Navigation), Driver’s, Door and Passenger’s Multiplex Control Unit, Driving Position Memory Switch (2002-2003), Gauge Assembly, Keyless Receiver Unit (2002-2003), PCM (VBU), Radiator Fan Control Module (2002-2003), Security Indicator
147.5except Type S: ABS-TCS Control Unit
7.5Type S: A/C Compressor
15201999-2001: Door Multiplex Control Unit (Driver’s Power Window)
302002-2003: Moonroof Close and Open Relays
1620Right Rear Power Window Switch
R1Power Window
R2Accessory Socket
R3Rear Window Defogger


Engine Compartment Overview

Engine Compartment Overview

  1. Relay Box №1
  2. Fuse Box
  3. Relay Box №2
  4. Intermittent Wiper Relay
  5. Relay Box №3

Engine Compartment Fuse Box Diagram

The under-hood fuse box is located in the back of the engine compartment on the passenger’s side. To open it, push the tabs.Engine Compartment Fuse Box №1 location Engine Compartment Fuse Box №1 Diagram

AProtected Component
41120Alternator, Battery, Power Distribution
4260Ignition Switch (BAT)
4320Right Headlight, Daytime Running Lights (DRL) Control Unit
44- -
4520Left Headlight, Combination Light Switch (2002-2003), Daytime Running Lights (DRL) Control Unit, DRL Diode, Gauge Assembly, High Beam Cut Relay (DRL)
4615Data Link Connector (DLC), PGM-FI Main Relay
4720Brake Pedal Position Switch, Horn Relay, Ignition Key Switch/Key Light, Security Horn Relay (’99)
4820ABS Fail-Safe Relay (1999-2001), TCS Relay (except Type S) (2002-2003), VSA Relay (Type S) (2002-2003)
4915Hazard Warning Switch
50301999-2001: ABS Pump Motor Relay
20Type S: VSA Throttle Motor Relay
5140Power Window Motor , Power Window Relay
52201999-2001: TCS Fail-Safe Relay
202002-2003: Fog Light Relay
5340Rear Window Defogger Relay
5440Fuse (Passenger Compartment Fuse Box No.2): No. 9, 10, 11, 12, 13
5540Fuse (Passenger Compartment Fuse Box No.1): No. 2, 3, 4, 5, 6
5640Blower Motor Relay
5720except Type S: Radiator Fan Relay
30Type S: Radiator Fan Relay
5820except Type S: A/C Compressor Clutch Relay, Condenser Fan Relay, Radiator Fan Control Module (1999-2001)
30Type S: A/C Compressor Clutch Relay, Condenser Fan Relay, Radiator Fan Control Module (1999-2001)
5915Taillight Relay
- -
R1Headlight №1
R2Headlight №2
R4A/C Condenser Fan
R5Blower Motor
R6Radiator Fan
R7A/C Compressor Clutch

Engine Compartment Relay Boxes

№1 (1999-2001)Engine Compartment Relay Box №1

R1ABS Pump Motor
R2ABS/TCS Fail-Safe

№2Engine Compartment Relay Box №2

R1Shift Lock
R22002-2003: Taillight
R32002-2003: Seat Heater
1999-2001: Security Horn
R42002-2003: High Beam Cut Relay (Daytime Running Light)
1999-2001: Seat Heater

№3 (2002-2003)Engine Compartment Relay Box №3

AProtected Component
140ABS Motor
220ABS F/S
37.5ABS Motor Check
R1ABS Pump Motor