1994 Freightliner Fl80 Fuse Box Diagram May 2026

While wire colors and positions could be custom-ordered, a standard 1994 FL80 cab fuse block generally follows this pattern (standard ISO relay logic applies to the relays):

| Fuse Position (Typical) | Amperage | Circuit Protected | | :--- | :--- | :--- | | F1 | 10A | Instrument Cluster / Gauges | | F2 | 15A | Turn Signals (Left & Right) | | F3 | 20A | Horn / Cigarette Lighter | | F4 | 15A | Backup Lights | | F5 | 15A | Stop Lights / Brake Lights | | F6 | 20A | Heater Blower Motor / AC | | F7 | 10A | Parking Lights / Dash Illumination | | F8 | 20A | Headlights (Low Beam) | | F9 | 20A | Headlights (High Beam) | | F10 | 15A | Dome Light / Courtesy Light | | F11 | 10A | Radio / Stereo | | F12 | 15A | Wipers / Washer Pump | | SPARE | Various | Spare Fuses | 1994 freightliner fl80 fuse box diagram

| Fuse Position | Amperage | Circuit / Component Protected | |---------------|----------|-------------------------------| | 1 | 15A | Left Headlamp (Low Beam) | | 2 | 15A | Right Headlamp (Low Beam) | | 3 | 10A | Left Turn Signal / Parking Light | | 4 | 10A | Right Turn Signal / Parking Light | | 5 | 20A | Windshield Wiper / Washer Motor | | 6 | 25A | HVAC Blower Motor (High Speed) | | 7 | 10A | Instrument Cluster (Gauges, Warning Lights) | | 8 | 15A | Radio / Cigarette Lighter / 12V Power Port | | 9 | 5A | ECM Keep-Alive Memory (if equipped) | | 10 | 15A | Back-up Lamps / Reverse Switch | | 11 | 20A | Stop Lamps (Brake Lights) | | 12 | 10A | Marker / Clearance Lights | | 13 | 15A | Horn / Dome Light | | 14 | Circuit Breaker (20A) | Power Door Locks (if equipped) | | 15 | 30A | Main Ignition Switch Feed | While wire colors and positions could be custom-ordered,

| Fuse/Circuit | Amp | Purpose | |--------------|-----|---------| | ALT | 100A+ fusible link | Alternator to battery | | IGN | 30A | Ignition switch feed | | HVAC | 30A | AC/Heater blower | | LAMPS | 40A | Headlight relay feed | | ABS | 30A | ABS module power | | ECU | 15A | Engine control module (if electronic) | | FUEL | 20A | Fuel lift pump | Layout – left dash fuse block (viewed with

Layout – left dash fuse block (viewed with door open, cover off):

+-------------------------------------------------+
|  [1] 30A  |  [2] 15A  |  [3] 10A  |  [4] 20A  |
|  IGN      |  TURN     |  CLUSTER  |  WIPER    |
|-----------+-----------+-----------+-----------|
|  [5] 15A  |  [6] 10A  |  [7] 20A  |  [8] 15A  |
|  HEATER   |  MARKER   |  STOP     |  BACKUP   |
|-----------+-----------+-----------+-----------|
|  [9] 30A  |  [10] 10A |  [11] 20A |  [12] 15A |
|  P/WINDOW |  RADIO    |  TRL RUN  |  A/C      |
+-------------------------------------------------+