2023 Freightliner Cascadia Power Distribution
In the 2023 Freightliner Cascadia, there are primarily two fuse boxes:
- Battery Cable Access Box (BCA):
- The BCA box serves as the primary interface for transferring battery power from outside the cab to the inside.
- It is located on the passenger side of the engine compartment front wall.
- On vehicles with optional high current receptacles or inverters, the BCA box includes circuit protection and power cables for those devices.
- Fuse locations are specified on a label on the BCA cover.
- Vehicle Power Distribution Module (VPDM):
- The VPDM acts as a fuse and relay power distribution box, providing power and circuit protection for powertrain needs, cab functions, and various standalone modules.
- It also supplies power to emergency power supply circuits in case of module failure.
- The VPDM is situated in the vehicle electronics bay, behind the passenger-side dash panel.
These fuse boxes play critical roles in managing power distribution and circuit protection throughout the Freightliner Cascadia.
2023 Freightliner Cascadia Fuse Box Diagram
1. Battery Cable Access Fuse Box
2023 Freightliner Battery Cable Access Fuse Box
2023 Freightliner Cascadia Powertrain PDM Fuse Box Details
2. Vehicle Power Distribution Module (VPDM)
2023 Freightliner Cascadia VPDM Fuse Box Diagram
2023 Freightliner Cascadia VPDM Fuse Box Details [4]
| FU/CB POS | FU/CB TYPE | FUSE LABEL DESCRIPTION |
|---|---|---|
| F01 | FU | VPDM,RELAY COIL, BAT1 |
| F02 | JCASE | HOUSE LOAD 1, BAT1 |
| F03 | JCASE | HOUSE LOAD 2, BAT1 |
| F04 | JCASE | BASIC LOAD 1, BAT1 |
| F05 | JCASE | BASIC LOAD 2, BAT1 |
| F06 | FU | METHANE DETECT/CPC/DEF PUMP, PWR |
| F07 | FU | IPPC/CLOCK/TELEMATICS, PWR |
| F08 | FU,T2,T3 | SPOT LAMP, BAT1 |
| F09 | FU,T2,T3 | 12V PWR RCPT 3&4 SLPR, BAT1 |
| F10 | FU,T2,T3 | READING LAMP FRONT, BAT1 |
| F11 | FU,T2,T3 | SLEEPER LAMP/AUX CIRC FAN, BAT1 |
| F12 | FU,T2,T3 | 12V PWR RCPT 5 SLPR, BAT1 |
| F13 | FU,T2,T3 | PWR FEED OUTPUT 4, BAT1 |
| F14 | FU,T2,T3 | EXP. FUSE 7/LANE DEP/GUIDANCE, BAT1 |
| F15 | FU,T2,T3 | PWR FEED OUTPUT 6/LIFT AXLE, BAT1 |
| F16A/B | FU | RADIO/CONNECT-5, BAT1/PWR |
| F17A/B | FU,T2,T3 | FLEET MGT SYS, BAT1/PWR |
| F18A/B | FU,T2 | 12V PWR RCPT 1,DASH/CIGAR, BAT1/IGN |
| F19A/B | FU,T2 | CB RAD/12V PWR RCPT 2,DASH, BAT1/IGN |
| F20 | FU,T2,T3 | 12V PWR RCPT 6, FRIG, BAT1 |
| F21 | FU,T2,T3 | PWR FEED OUTPUT 1, BAT1 |
| F22 | FU,T2,T3 | PWR FEED OUTPUT 2, BAT1 |
| F23 | FU,T2,T3 | PWR FEED OUTPUT 3, BAT1 |
| F24 | FU | HEATED SEAT, IGN |
| F25 | FU,T2,T3 | ABS POWER FEED 2, BAT1 |
| F26/F26A | FU,T2,T3 | ABS POWER FEED 1/ FUEL WATER SEP HTR, BAT1 |
| F27 | FU | FCU/ACU HVAC CTRLR, BAT1 |
| F28 | JCASE | CAB HVAC FAN MOTOR, BAT1 |
| F29 | JCASE | SLEEPER HVAC FAN MOTOR, BAT1 |
| F30 | FU,T2,T3 | AUX CAB/AUX COLNT HTR, BAT1 |
| F31 | FU | TIRE PRESS/TRANS SHFT CTRL, BAT1 |
| F32 | FU | CGW/INST CLUSTER, BAT1 |
| F33 | FU,T2,T3 | EXP FUSE 3/MIRROR CAMERA, BAT1 |
| F34 | FU,T2,T3 | AIR SUSPENSION (ECAS), BAT1 |
| F35 | FU,T2,T3 | DASH SPLICEPACK, BAT1 |
| F37 | FU,T2,T3 | AIR DRYER CONTROL, D+ |
| F38 | FU,T2,T3 | LUBE/AIR DRYER/SPIT VLV/HTD DRAIN CTRL, D+ |
| F39 | FU,T2,T3 | FUEL WATER SEP HTR ELEMENT CTRL, D+ |
| F40A/B | FU | AUX CAB/AUX COLNTHTR, ENABLE/BAT1 |
| F41 | FU,T2,T3 | FLEET MGT SYS / ABB / COMTEL PLATF, IGN |
| F43 | FU,T2,T3 | TRAILER ABS CONN (7) & ABS ECU, IGN |
| F44 | FU,T2,T3 | DASH SWITCH/SPLICEPACK, IGN |
| F45 | FU,T2,T3 | PTO/EXPANSION FUSE 4, IGN |
| F46 | FU | INST CLSTR/SRS/CAB HVAC CTRLR, IGN |
| F47 | FU,T2 | TRANS CTRL UNIT (TCU), IGN |
| F48 | FU | EXPANSION FUSE 9, IGN |
| F49 | FU,T2 | CPC / MCM/ ACM/ TCM/ ECM, IGN |
| F50 | FU | BDY BLDR/OI ALM/LKOUT SOL/FL SNDR, IGN |
| F51 | FU | ICM/ELECTRIC FAN, IGN |
| F52 | FU,T2,T3 | ABS / EXPANSION FUSE 1, BAT2 |
| F53 | FU,T2,T3 | DEF HTR 3/EXPANSION FUSE 2, BAT2 |
| F54 | FU,T2,T3 | DEF LINE HEATER #1/#2/#3 CTRL |
| F56 | FU | RADIO, ACC |
| F57 | FU,T2,T3 | AMPLIFIER, ACC |
| F58 | FU,T2,T3 | AUX MIR HEAT,DRIVER/PASS CTRL |
| F60 | FU,T2,T3 | AFTER TREATMENT SYS (ATS) CTRL |
| F61A/B | FU,T2,T3 | TRAILER OPTION POWER #1, CTRL/BAT2 |
| F63 | FU | LANE DEPARTURE/ GUIDANCE, IGN |
| F64 | FU | CAMERA/VIDEO/IMAGING SYS, IGN |
| F65 | FU | COLL AVOID/OBSTACLE DET SYS, BAT1 |
| F66 | FU,T2,T3 | D+ EXPANSION, SIGNAL 1 & 2 |
| F67 | FU | DRIVER CAMERA / COM TELEMATIC PLATF, IGN |
| F68 | FU,T2,T3 | EXPANSION FUSE 5/6, ACC |
| F69A/B | FU | DOOR CONTROL,DRIVER, BAT1/PWR |
| F70A/B | FU | DOOR CONTROL,PASS, BAT1/PWR |
| F71 | FU,T2 | OBD J1939, BAT1 |
| F73 | FU,T2,T3 | COM TELEMATIC PLATF (CTP), PWR |
| F74 | FU | THIRD PARTY CONN / WSPC /MMI, IGN |
| F75 | FU,T2,T3 | THIRD PARTY CONN (3PC), PWR |
| F76 | FU | THIRD PARTY CONN (3PC), BAT1 |
| F77 | T2 | LED HEADLAMP DRIVER, BAT1 |
| F78 | T2 | LED HEADLAMP PASSENGER, BAT1 |
| F79 | FU | DEF PUMP CTRL |
| F81 | FU | COLL AVOID/OBSTACLE DET SYS, IGN |
| RELAY POS | RELAY TYPE | RELAY DESCRIPTION |
| RE1 | Bi-Stable | HOUSE LOAD 1 |
| RE2 | Bi-Stable | HOUSE LOAD 2 |
| RE3 | Bi-Stable | BASIC LOAD 1 |
| RE4 | Bi-Stable | BASIC LOAD 2 |
| RE5 | HCR | D+/ ALTERNATOR CHARGING |
| RE6 | Micro | AUX CAB/AUX COLNT HTR |
| RE7 | HCR | IGNITION |
| RE8 | HCR | IGNITION |
| RE9 | Mini | TRAILER |
| RE10 | Micro | DEF LINE HEATER |
| RE11 | HCR | ACCESSORY |
| RE12 | Mini | MIRROR HEAT |
| RE13 | U-Micro | DEF PUMP/AUTO NEUTRAL |
| RE14 | U-Micro | POWER TAKE OFF #1 |
| RE15 | U-Micro | POWER TAKE OFF #2 |
| RE16 | U-Micro | AFTER TREAT SYS (ATS) |
| RE17 | U-Micro | SPARE RELAY 9 |
| RE18 | U-Micro | DEF LINE HTR/ SPARE RELAY 1 |
| RE19 | U-Micro | SPARE RELAY 2 |
| RE20 | micro | SPARE RELAY 3 |
| RE21 | micro | SPARE RELAY 4 |
| RE22 | mini | SPARE RELAY 5 |
| RE23 | HCR | SPARE RELAY 6 |
| RE24 | U-Micro | IGN/PTEARLYWAKEUP |
| RE25 | Micro | DEF PUMP |
WARNING: The terminal and harness assignments for individual connectors may vary depending on the vehicle’s equipment level, model, and market. It is recommended to refer to the fuse box diagram provided at the back of the fuse box cover for accurate information.
References
1. Freightliner Cascadia Cab Power Distribution and Component Location Overview, PN-200: Freightliner Cascadia Owner Manual.
2. Freightliner Cascadia BCA Fuse Box Details: Freightliner Cascadia BCA Fuse Value and Details.
3. Freightliner Cascadia VPDM Fuse and Relay Box Layout: Freightliner Cascadia VPDM Fuses / Circuit Breakers & Relays Layout.
4. Freightliner Cascadia VPDM Fuse and Relay Box Details: Freightliner Cascadia VPDM Fuses / Circuit Breakers & Relays Details.
