Infiniti Q45 (1990 – 1996) – fuse box diagram

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Infiniti Q45 (1990 – 1996) – fuse box diagram

Year of  production: 1990, 1991, 1992, 1993, 1994, 1995, 1996

Passenger Compartment

1990 – 1993

Infiniti Q45 - fuse box diagram - passenger compartment
Infiniti Q45 – fuse box diagram – passenger compartment

1994 – 1996

Infiniti Q45 – fuse box diagram – passenger compartment
  1. Circuit Breaker (Power Door Lock, Power Seat)
  2. Combination Flasher Unit
  3. Accessory Relay No.2
  4. Accessory Relay No.1
  5. Ignition Relay No.1
  6. Fuse Box
  7. Transmission Control Module (TCM)
  8. ’90-’93: Door Lock Timer No.1
  9. ’90-’93: Power Window Relay
  10. Rear Window Defogger Relay
  11. Circuit Breaker (Power Window, Sunroof)
  12. ’90-’93: Time Control Unit
  13. Shift Lock Control Unit
  14. Headlamp Sensor
  15. Ignition Relay No.2
  16. ’90-’94: Theft Warning Horn Relay
  17. ’90-’93: Automatic Drive Positioner Control Unit
  18. Stop Lamp Switch
  19. Automatic Speed Control Device (ASCD) Brake Switch
  20. Kickdown Switch
  21. Resistor (Alternator)
  22. Automatic Speed Control Device (ASCD) Control Unit
  23. Power Steering Control Unit
  24. Blower Motor Relay (High Speed)
  25. ’90-’93: Theft Warning Control Unit
  26. ’90-’93: ABS Control Unit or TCS Control Unit
  27. Audio Amplifier Relay
  28. Engine Control Module (ECM) Relay
  29. ’90-’94: Ignition Coil Relay
  30. ’90-’95: Theft Warning Horn Relay No.2
  31. Engine Control Module (ECM)
  32. ’90-’93: Door Lock Relay
  33. Right Power Seat Control Unit
  34. Speed Sensor (Rear Extension)
  35. Air Bag Control Unit
  36. ’90-’93: Door Lock Timer No.2
  37. ’90-’94: Tunnel Sensor and Safing Sensor
  38. Left Power Seat Control Unit
  39. ’90-’93: Power Window Amplifier
  40. ’94-’96: Fog Lamp Relay
  41. ’94-’96: Courtesy Lamp relay
  42. ’94-’96: Sunroof Relay
  43. ’94-’96: Multi-Remote Control Relay
  44. ’94-’96: Multi-Remote Control Check Relay
  45. ’94-’96: Body Control Module (BCM)
  46. ’96: Automatic Speed Control Device (ASCD) Hold Relay
  47. ’94-’96: Throttle Control Module (TCM)
  48. ’94-’96: Auto Air Conditioner Amplifier
  49. ’96: Theft Warning Relay No.3

Passenger Compartment Fuse Box

Infiniti Q45 - fuse box diagram - passenger compartment box
Infiniti Q45 – fuse box diagram – passenger compartment box
No. A
 Circuit Protected
1 10 ’94-’96: ABS/TCS
10 ’90-’93: Inhibitor Switch (Back-Up Lamps), Transmission Control Module (TCM), TCS Control Unit, Theft Warning System, Parn/Neutral Position Switch
2 10 ’94-’96: Inhibitor Switch (Back-Up Lamps), Transmission Control Module (TCM), TCS Control Unit, Automatic Speed Control Device (ASCD) Control Unit, Theft Warning Relay No.3, Parn/Neutral Position Switch
10 ’90-’93: Air Conditioner, Daytime Light Control Unit
3 15 ’94-’96: Fuel Pump Relay, Fuel Pump Control Module (FPCM)
10 ’90-’93: Receiver (Telephone), Handset
4 15 ’95-’96: Heated Oxygen Sensors, Air Fuel Ratio Sensors, Idle Air Control Valve Solenoid Valve, EGR Volume Control Valve
10 ’94: High Capacity Actively Controlled Steering (HICAS) Control Unit
15 ’90-’93: Blower Motor
5 10 ’94-’96: Air Bag Control Unit
15 ’90-’93: Blower Motor
6 20 ’90-’93: Wiper Motor, Wiper Switch, Washer Motor, Wiper Amplifier, Time Control Unit
7 15 ’94-’96: Blower Motor
10 ’90-’93: Engine Control Module (ECM), High Capacity Actively Controlled Steering (HICAS)
8 15 ’94-’96: Blower Motor
15 ’90-’93: Fuel Pump Relay, Fuel Pump Control Module (FPCM)
9 10 Radio, CD Auto Changer, Power Antenna Timer
10 10 Body Control Module (BCM), Door Mirror Control Unit, Diagnostic Information Display Control Unit, Automatic Drive Positioner
11 20 Rear Cigarette Lighter (Left and Right)
12 15 Cigarette Lighter
13 10 ’94-’96: Daytime Light Cancel Relay, Daytime Light Control Unit, Air Conditioner, Cooling Fan
15 ’90-’93: Stop Lamp Switch, Stop and Tail Lamp Sensor, Diagnostic Information Display Control Unit, Automatic Speed Control Device (ASCD) Control Unit, Active Suspension, Power Steering System, High Capacity Actively Controlled Steering (HICAS) Control Unit
14 20 ’94-’96: Rear Window Defogger Relay
10 ’90-’93: Radio, CD Auto Changer, Power Antenna Timer, Clock, Diagnostic Information Display Control Unit, Steering Receiver (Telephone), Power Seat, Key Hole Illumination, Air Bag Control Unit, TCS Control Unit, High Capacity Actively Controlled Steering (HICAS) Control Unit, Auto Air Conditioner Amplifier, Automatic Drive Positioner
15 20 Rear Window Defogger Relay
16 10 ’94-’96: Receiver (Telephone), Handset
20 ’90-’93: Rear Window Defogger Relay
17 20 ’94-’96: Audio Amplifier Relay
15 ’90-’93: Active Suspension
18 15 ’94-’96: Stop Lamp Switch, Stop and Tail Lamp Sensor, Diagnostic Information Display Control Unit, Automatic Speed Control Device (ASCD) Control Unit
20 ’90-’93: Audio Amplifier Relay
19 10 ’94-’96: Body Control Module (BCM), Key Switch, Power Door Lock, Warning Chime, Automatic Drive Positioner
20 10 ’94-’96: Body Control Module (BCM), Power Seat, Power Window, Key Hole Illumination
10 ’90-’93: Combination Meter, Data Link Connector, Diagnostic Information Display Control Unit, Warning Chime, Seat Belt, Automatic Drive Positioner, Rear Window Defogger Relay, Auto Anti-Dazzling Inside Mirror, Power Door Lock, Time Control Unit, Power Steering System, TCS
21 10 ’94-’96: Radio, CD Auto Changer, Power Antenna Timer, Clock, Diagnostic Information Display Control Unit, Steering Receiver (Telephone), Front Power Window (RH), Rear Power Window, Multi-Remote Control Unit, Key Hole Illumination, Air Conditioner
10 ’90-’93: Hazard Switch (Combination Flasher Unit), Multi-Remote Control Relay, Multi-Remote Control Check Relay, Turn Signal Switch, Turn Indicator, Multi-Remote Control Unit
22 10 ’94-’96: Fuel Filler Lid Opener Actuator, Trunk Lid Opener Actuator, Multi-Remote Control Unit
10 ’90-’93: Air Bag Control Unit
23 10 ’94-’95: Active Suspension
15 ’90-’93: Shift Lock System, Key Switch
24 10 ’94-’96: ’96: Hazard Switch (Combination Flasher Unit)
10 ’90-’93: Receiver (Telephone), Handset
25 10 ’94-’96: Combination Meter, Data Link Connector, Alternator Resistor, Diagnostic Information Display Control Unit, Body Control Module (BCM), Warning Chime, Seat Belt, Automatic Drive Positioner, Buckle Switch, Door Switch, Sunroof Relay, Rear Window Defogger Relay, Auto Anti-Dazzling Inside Mirror, Power Door Lock
10 ’90-’93: Fuel Filler Lid Opener Actuator, Trunk Lid Opener Actuator
26 10 Combination Meter, Automatic Speed Control Device (ASCD) Main Switch, ASCD Hold Relay, ASCD Control Unit, Park/Neutral Position Relay, Engine Control Module (ECM)
27 15 ’90-’95: Active Suspension
28 15 ’94-’96: Heated Seat, Power Seat (LH/RH)
10 ’90-’93: High Capacity Actively Controlled Steering (HICAS), Speedometer
29 20 ’94-’96: Wiper Motor, Wiper Switch, Washer Motor, Wiper Amplifier, Body Control Module (BCM)
10 ’90-’93: ABS
30 15 ’95-’96: Injectors
10 ’90-’93: Clearance Lamps, Side Marker Lamps, Tail Lamps, License Plate Lamps, Stop and Tail Lamp Sensor, Headlamp Relay Unit, Lighting Switch, Glove Box Lamp, Body Control Module (BCM), Warning Chime, Illumination Control Switch, Illumination: (Combination Meter, Ashtray, Automatic Speed Control Device (ASCD) Main Switch, Rear Window Defogger Switch, Cigarette Lighter, TCS Switch, Power Window Main Switch, 1ST Position Switch, Air Conditioner Switch Panel, Hazard Switch, Clock, Door Mirror Switch, Radio, Heated Seat Switch, Auto Anti-Dazzling Inside Mirror, Power Window Switch)
Relay
R1 Accessory (No.2)
R2 Accessory (No.1)
R3 Ignition (No.1)
Infiniti Q45 – fuse box diagram – passenger compartment box
  1. TCS Control Unit or ABS Control Unit
  2. ’90-’93: Rear Amplifier (Audio)
    ’94-’96: Multi-Remote Control Unit
  3. Fuel Pump Control Module (FPCM)
  4. ’90-’94: High Capacity Actively Controlled Steering (HICAS) Control Unit
  5. ’90-’95: Active Suspension Control Unit
  6. Fuel Pump Relay
  7. Power Antenna Timer
  8. ’94-’96: CD Auto Changer
  9. ’90-’93: Courtesy Lamp Relay
  10. Stop and Tail Lamp Sensor

Engine Compartment

1990 – 1993

Infiniti Q45 - fuse box diagram - engine compartment
Infiniti Q45 – fuse box diagram – engine compartment

1994 – 1996

Infiniti Q45 - fuse box diagram - engine compartment
Infiniti Q45 – fuse box diagram – engine compartment
  1. ’94-’96: Cooling Fan Relay
  2. Battery
  3. Headlamp Relay Unit
  4. Fuse Box
  5. Wiper Amplifier
  6. Starter Relay
  7. Wiper Motor
  8. ABS Actuator
  9. Automatic Speed Control Device (ASCD) Actuator
  10. ASCD Pump
  11. ’94-’96: Daytime Light Cancel Relay
  12. ’94-’96: TCS Relay
  13. ’94-’96: Daytime Light Control Unit
  14. ’90-’93: Dropping Resistor
  15. ’90-’95: Power Transistor Unit (Left)
  16. ’90-’92: Left Crash Zone Sensor
  17. ’90-’95: Power Transistor Unit (Right)
  18. ’90-’94: Center Crash Zone Sensor
    ’92-’93: Cooling Fan Relay
  19. ’90-’92: Right Crash Zone Sensor

Engine Compartment Fuse Box

Infiniti Q45 - fuse box diagram - engine compartment
Infiniti Q45 – fuse box diagram – engine compartment
Infiniti Q45 - fuse box diagram - engine compartment fuse box
Infiniti Q45 – fuse box diagram – engine compartment fuse box
No.
 A
 Circuit Protected
31 15 Right Headlamp, Headlamp Relay Unit, Daytime Light Control Unit, Lighting Switch, Theft Warning Relay No.1, Body Control Module (BCM)
32 15 Left Headlamp, Headlamp Relay Unit, Daytime Light Control Unit, Fog Lamp Relay, Lighting Switch, Theft Warning Relay No.1
33 15 ’94-’96: Horn Relay, Automatic Speed Control Device (ASCD) Steering Switch, Body Control Module (BCM)
10 ’90-’93: Horn Relay, Theft Warning System
34 10 Hazard Switch (Combination Flasher Unit), Multi-Remote Control Relay, Multi-Remote Control Check Relay, Turn Signal Switch, Turn Indicator, Multi-Remote Control Unit
35 10 ’96: Theft Warning Relay No.2 (Horn), Automatic Speed Control Device (ASCD) Steering Switch, Body Control Module (BCM)
36 10 ’94-’96: Alternator
37 10 ’94-’96: Clearance Lamps, Side Marker Lamps, Tail Lamps, License Plate Lamps, Stop and Tail Lamp Sensor, Headlamp Relay Unit, Lighting Switch, Glove Box Lamp, Body Control Module (BCM), Warning Chime, Illumination Control Switch, Illumination: (Combination Meter, Ashtray, Automatic Speed Control Device (ASCD) Main Switch, Rear Window Defogger Switch, Cigarette Lighter, TCS Switch, Power Window Main Switch, 1ST Position Switch, Air Conditioner Switch Panel, Hazard Switch, Clock, Door Mirror Switch, Radio, Heated Seat Switch, Auto Anti-Dazzling Inside Mirror, Power Window Switch)
15 ’90-’93: Headlamp Relay Unit
38 10 Interior Lamp, Trunk Room Lamp, Foot Lamps, Spot Lamps, Key Illumination, Courtesy Lamp Relay (Courtesy Lamps), Body Control Module (BCM), Illumination Control Switch, Door Switch, Combination Meter (Chime)
39 15 ’94-’96: Fog Lamp Relay
40 10 Theft Warning Relay No.2 (Starter), Starter Relay, Daytime Light Cancel Relay, Daytime Light Control Unit, Parking Brake Switch, Engine Control Module (ECM)
41 10 ’94-’96: Receiver (Telephone)
10 vAlternator
42 20 TCS
43 20 ABS/TCS
A 120 Alternator, Fuse: “D”, “G”, “M”, “36”
B –  –
C 100 Fuse: “14”, “15”, “31”, “32”, “33”, “34”, “35”, “37”, “38”
D 30 Accessory Relay No.2 (Fuse: “7”, “8”)
E 30 ABS/TCS
F 25 Circuit Breaker (Power Window, Sunroof), Circuit Breaker (Power Door Lock, Power Seat)
G 75 Accessory Relay No.1 (Fuse: “10”, “11”, “12”, “29”), Ignition Relay No.1 (Fuse: “13”, “16”, “24”, “25”, “26”), Ignition Relay No.2 (Fuse: “1”, “2”, “28”), Fuse: “E”, “F”, “J”, “17”, “18”, “19”, “20”, “21”, “22”, “41”, “42”, “43”
H –  –
I 30 Ignition Switch, Starter Relay, Inhibitor Switch, Fuel Pump Relay, Fuel Pump Control module (FPCM)
J 30 TCS
K 25 Engine Control Module (ECM), Transmission Control Module (TCM), Mass Air Flow Sensor, Data Link Connector, Camshaft Position Sensor (CMPS)
L 25 ’96: Body Control Module (BCM), Automatic Drive Positioner
25 ’90-’94: Engine Control Module (ECM)
M 30 ’92-’96: Cooling Fan
25 ’90-’91: Cooling Fan
Relay
R1 Air Conditioner
R2 Park/Neutral Position
R3 ’90-’95: Automatic Speed Control Device (ASCD) Hold
’96: Theft Warning (No.2)
R4 Cooling Fan
R5 Theft Warning (No.1)
R6 Horn

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.