2023 Freightliner Cascadia Power Distribution

In the 2023 Freightliner Cascadia, there are primarily two fuse boxes:

  1. 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.
  2. 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.

Freightliner Cascadia Cab Power Distribution and Component Location Overview [1]

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

BCA Fuse Box Details [2]

2. Vehicle Power Distribution Module (VPDM)

2023 Freightliner Cascadia VPDM Fuse Box Diagram

Freightliner Cascadia VPDM Fuse and Relay Box Layout [3]

2023 Freightliner Cascadia VPDM Fuse Box Details [4]

FU/CB POSFU/CB TYPEFUSE LABEL DESCRIPTION
F01FUVPDM,RELAY COIL, BAT1
F02JCASEHOUSE LOAD 1, BAT1
F03JCASEHOUSE LOAD 2, BAT1
F04JCASEBASIC LOAD 1, BAT1
F05JCASEBASIC LOAD 2, BAT1
F06FUMETHANE DETECT/CPC/DEF PUMP, PWR
F07FUIPPC/CLOCK/TELEMATICS, PWR
F08FU,T2,T3SPOT LAMP, BAT1
F09FU,T2,T312V PWR RCPT 3&4 SLPR, BAT1
F10FU,T2,T3READING LAMP FRONT, BAT1
F11FU,T2,T3SLEEPER LAMP/AUX CIRC FAN, BAT1
F12FU,T2,T312V PWR RCPT 5 SLPR, BAT1
F13FU,T2,T3PWR FEED OUTPUT 4, BAT1
F14FU,T2,T3EXP. FUSE 7/LANE DEP/GUIDANCE, BAT1
F15FU,T2,T3PWR FEED OUTPUT 6/LIFT AXLE, BAT1
F16A/BFURADIO/CONNECT-5, BAT1/PWR
   
F17A/BFU,T2,T3FLEET MGT SYS, BAT1/PWR
F18A/BFU,T212V PWR RCPT 1,DASH/CIGAR, BAT1/IGN
F19A/BFU,T2CB RAD/12V PWR RCPT 2,DASH, BAT1/IGN
F20FU,T2,T312V PWR RCPT 6, FRIG, BAT1
F21FU,T2,T3PWR FEED OUTPUT 1, BAT1
F22FU,T2,T3PWR FEED OUTPUT 2, BAT1
F23FU,T2,T3PWR FEED OUTPUT 3, BAT1
F24FUHEATED SEAT, IGN
F25FU,T2,T3ABS POWER FEED 2, BAT1
F26/F26AFU,T2,T3ABS POWER FEED 1/ FUEL WATER SEP HTR, BAT1
F27FUFCU/ACU HVAC CTRLR, BAT1
F28JCASECAB HVAC FAN MOTOR, BAT1
F29JCASESLEEPER HVAC FAN MOTOR, BAT1
F30FU,T2,T3AUX CAB/AUX COLNT HTR, BAT1
F31FUTIRE PRESS/TRANS SHFT CTRL, BAT1
F32FUCGW/INST CLUSTER, BAT1
F33FU,T2,T3EXP FUSE 3/MIRROR CAMERA, BAT1
F34FU,T2,T3AIR SUSPENSION (ECAS), BAT1
F35FU,T2,T3DASH SPLICEPACK, BAT1
F37FU,T2,T3AIR DRYER CONTROL, D+
F38FU,T2,T3LUBE/AIR DRYER/SPIT VLV/HTD DRAIN CTRL, D+
F39FU,T2,T3FUEL WATER SEP HTR ELEMENT CTRL, D+
F40A/BFUAUX CAB/AUX COLNTHTR, ENABLE/BAT1
F41FU,T2,T3FLEET MGT SYS / ABB / COMTEL PLATF, IGN
F43FU,T2,T3TRAILER ABS CONN (7) & ABS ECU, IGN
F44FU,T2,T3DASH SWITCH/SPLICEPACK, IGN
F45FU,T2,T3PTO/EXPANSION FUSE 4, IGN
F46FUINST CLSTR/SRS/CAB HVAC CTRLR, IGN
F47FU,T2TRANS CTRL UNIT (TCU), IGN
F48FUEXPANSION FUSE 9, IGN
F49FU,T2CPC / MCM/ ACM/ TCM/ ECM, IGN
F50FUBDY BLDR/OI ALM/LKOUT SOL/FL SNDR, IGN
F51FUICM/ELECTRIC FAN, IGN
F52FU,T2,T3ABS / EXPANSION FUSE 1, BAT2
F53FU,T2,T3DEF HTR 3/EXPANSION FUSE 2, BAT2
F54FU,T2,T3DEF LINE HEATER #1/#2/#3 CTRL
   
F56FURADIO, ACC
F57FU,T2,T3AMPLIFIER, ACC
F58FU,T2,T3AUX MIR HEAT,DRIVER/PASS CTRL
F60FU,T2,T3AFTER TREATMENT SYS (ATS) CTRL
F61A/BFU,T2,T3TRAILER OPTION POWER #1, CTRL/BAT2
F63FULANE DEPARTURE/ GUIDANCE, IGN
F64FUCAMERA/VIDEO/IMAGING SYS, IGN
F65FUCOLL AVOID/OBSTACLE DET SYS, BAT1
F66FU,T2,T3D+ EXPANSION, SIGNAL 1 & 2
F67FUDRIVER CAMERA / COM TELEMATIC PLATF, IGN
F68FU,T2,T3EXPANSION FUSE 5/6, ACC
F69A/BFUDOOR CONTROL,DRIVER, BAT1/PWR
F70A/BFUDOOR CONTROL,PASS, BAT1/PWR
F71FU,T2OBD J1939, BAT1
F73FU,T2,T3COM TELEMATIC PLATF (CTP), PWR
F74FUTHIRD PARTY CONN / WSPC /MMI, IGN
F75FU,T2,T3THIRD PARTY CONN (3PC), PWR
F76FUTHIRD PARTY CONN (3PC), BAT1
F77T2LED HEADLAMP DRIVER, BAT1
F78T2LED HEADLAMP PASSENGER, BAT1
F79FUDEF PUMP CTRL
F81FUCOLL AVOID/OBSTACLE DET SYS, IGN
RELAY POSRELAY TYPERELAY DESCRIPTION
RE1Bi-StableHOUSE LOAD 1
RE2Bi-StableHOUSE LOAD 2
RE3Bi-StableBASIC LOAD 1
RE4Bi-StableBASIC LOAD 2
RE5HCRD+/ ALTERNATOR CHARGING
RE6MicroAUX CAB/AUX COLNT HTR
RE7HCRIGNITION
RE8HCRIGNITION
RE9MiniTRAILER
RE10MicroDEF LINE HEATER
RE11HCRACCESSORY
RE12MiniMIRROR HEAT
RE13U-MicroDEF PUMP/AUTO NEUTRAL
RE14U-MicroPOWER TAKE OFF #1
RE15U-MicroPOWER TAKE OFF #2
RE16U-MicroAFTER TREAT SYS (ATS)
RE17U-MicroSPARE RELAY 9
RE18U-MicroDEF LINE HTR/ SPARE RELAY 1
RE19U-MicroSPARE RELAY 2
RE20microSPARE RELAY 3
RE21microSPARE RELAY 4
RE22miniSPARE RELAY 5
RE23HCRSPARE RELAY 6
RE24U-MicroIGN/PTEARLYWAKEUP
RE25MicroDEF 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.

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