2009 Freightliner Cascadia Fuse Boxes Diagram and locations - Ninja Fix (2024)

2009 Freightliner Cascadia Power Distribution

The 2009 Freightliner Cascadia operates using the EAP 07 system. Battery power in the Cascadia is protected by fuses located at standard and optional locations. The primary power distribution center for the vehicle is the Mega Fuse Junction Block (MFJB).

At the MFJB, battery power is directed to various components including the alternator, SAM Cab, SAM Chassis, powertrain PDM, and optional loads. Optional components such as the in-cab auxiliary PDM and chassis PDM are also connected to the MFJB.

Additionally, battery power from the MFJB can be routed to an inverter and a trailer cable. The Cascadia is equipped with a load disconnect switch that isolates the MFJB from the batteries.

However, it’s important to note that battery cables connecting the starter and emergency power circuits remain active even when the load disconnect switch is engaged.

2009 Freightliner Cascadia Fuse Boxes Diagram and locations - Ninja Fix (1)

Details of Freightliner Cascadia Power Distribution Module.

There are total 5 (five) no of Power Distribution Module in 2009 Cascadia:

  1. Powertrain PDM : The powertrain PDM provides battery and ignition power to the engine, aftertreatment device, and transmission, in addition to optional powertrain related circuits. The powertrain PDM is mounted above the driver-side inner fender.
  2. In-Cab Auxiliary PDM : The optional in-cab auxiliary PDM is installed in one of two locations. On 113 BBC vehicles, the PDM is mounted on an HVAC duct in the dash, and accessed by removing the auxiliary dash panel. On 125 BBC vehicles, the PDM is mounted on the engine tunnel inside the cab next to the central gateway. Battery power to the in-cab auxiliary PDM is protected by a 30-amp inline fuse located near the SAM chassis in the engine compartment.
  3. Chassis PDM : The optional chassis PDM is mounted on a bracket forward of the between-rail battery box, or inside the between-rail battery box. When mounted outside the battery box, there may be additional relays and an inline fuse on the lower side of the mounting bracket.
  4. SAM Cab : The SAM cab contains the electronic controls and the fuses and relays for cab electrical systems. It is located in the passenger side of the dash and accessed by removing the glove compartment. The shields covering the SAM cab must be re-installed after the SAM is accessed.
  5. SAM Chassis : The SAM chassis contains the electronic controls and the fuses and relays for most of the chassis electrical system. It is located on the driver side of the front wall in the engine compartment. The cover over the SAM chassis fuse and relay area must be completely latched into place after they are accessed.
2009 Freightliner Cascadia Fuse Boxes Diagram and locations - Ninja Fix (2)

2009 Freightliner Cascadia PDM, Fuse & Relay Location

1. Powertrain PDM

The powertrain power distribution module (PDM) is mounted in the engine compartment next to the left front inner fender.

2009 Freightliner Cascadia Fuse Boxes Diagram and locations - Ninja Fix (3)

2. In-Cab Auxiliary PDM

On 113 BBC vehicles, the in cab auxiliary PDM is located on the HVAC duct behind the center dash panel and is accessed by removing the auxiliary dash panel. On 125 BBC vehicles, the PDM is mounted on the engine tunnel inside the cab, next to the central gateway.

2009 Freightliner Cascadia Fuse Boxes Diagram and locations - Ninja Fix (4)

3. Trailer (Chassis) PDM

The chassis PDM is either mounted on a bracket forward of the between-rail battery box, or inside the between-rail battery box.

2009 Freightliner Cascadia Fuse Boxes Diagram and locations - Ninja Fix (5)

4. SAM Cab

2009 Freightliner Cascadia Fuse Boxes Diagram and locations - Ninja Fix (6)

5. SAM Chassis

The SAM chassis PDM fuse and relay in the 2009 Freightliner can be accessed from the engine side cabin, specifically located in the inner fender of the driver’s side. The connector or access point for these components is reachable from the driver’s cabin.

2009 Freightliner Cascadia Fuse Boxes Diagram and locations - Ninja Fix (7)

2009 Freightliner Cascadia Fuse Box Diagram

1. Powertrain PDM

2009 Freightliner Cascadia Powertrain PDM Fuse Box Diagram

2009 Freightliner Cascadia Fuse Boxes Diagram and locations - Ninja Fix (8)

2009 Freightliner Cascadia Powertrain PDM Fuse Box Details

NoFuse and Relay Details
F1Not Used
F2TRANS ECU IGN FUSE
F3FUEL HEATER FUSE
F4FUEL HEATER FUSE
F5ENGINE IGN
F6SAM CHASS
F7PLVD/REMOTE SENSE
F8ENGINE ECU BATT FUSE
F9CPC/ENG ECU BATT FUSE
F10TRANS BATT FUSE
F11TRANS BATT FUSE
F12TRANS BATT FUSE
F13TRANS BATT FUSE
R1TRANS BACKUP RELAY
R2MEIIR RELAY
R3NEUTRAL RELAY/START ENABLE
R4SPARE RELAY/HEAT RELAY
R5N/A
R670A IGN RELAY

2. In-Cab Auxiliary PDM

2009 Freightliner Cascadia In-Cab Auxiliary PDM Fuse Box Diagram

2009 Freightliner Cascadia Fuse Boxes Diagram and locations - Ninja Fix (9)

3. SAM Chassis Fuse Box

2009 Freightliner Cascadia SAM Chassis PDM Fuse Box Diagram

2009 Freightliner Cascadia Fuse Boxes Diagram and locations - Ninja Fix (10)

2009 Freightliner Cascadia SAM Chassis PDM Fuse Box Details

NoFuse and Relay Details
SAM Chassis Relays
R1H2O SEP HEAT, IGN
R2TRLR TRN L
R3ABS/WIF/CAMERA, IGN
R4TRLR TRN R
R5TRLR MARKER
R6TRLR ABS, IGN
R7TRLR STOP LAMPS
R8TRLR POWER
R9TRLR TAIL LAMPS
SAM CHASSIS FUSE
F1EAPU (20A)
F2H2O SEP HEAT (20A)
F3ABS—BAT1 (20A)
F4ABS—BAT2 (10A)
F5TRLR TRN L (20A)
F6ABS—IGN (15A)
F7WIF/CAMERA (10A)
F8TRLR TRN R (20A)
F9TRLR MKR (30A)
F10SAM RELAY COILS (5A)
F11TRLR ABS—IGN (30A)
F12TRLR STOP (30A)
F13TRLR TAIL (20A)
F14TRLR PWR (30A)

3. SAM Cab Fuse Box

2009 Freightliner Cascadia SAM Cab PDM Fuse Box Diagram

2009 Freightliner Cascadia Fuse Boxes Diagram and locations - Ninja Fix (11)

2009 Freightliner Cascadia SAM Chassis PDM Fuse Box Details

NoFuse and Relay Details
SAM Cab Relays
R1PWR FD SPARE 1 and 3, BAT
R2PWR FD SPARE 2 and 4, BAT
R3HEATED SEAT, IGN
R4DASH PWR RCPT 1 and 2, BAT
R5FLT MGM SYS and CB, BAT
R6PWR RCPT3 and STD HVAC, BAT
R7DRV INFO/GAUGE, IGN
R8ICU/VEHICLE SYS, IGN
R9AMPLIFIER PWR, ACC
R10MIRROR HEAT
R11PWR RCPT 6 / FRIG, BAT
R12PWR RCPT 5, BAT
R13CAB LIGHTING, BAT
R14PWR RCPT4/CIR FAN/LAMP, BAT
R15PWR WINDOW, ACC
SAM Cab FUSE
F1PWR FD SPARE 1 and 3 (30A)
F2CAB/SLPR HVAC CTRL/SHF PNL (15A)
F3PWR FD SPARE 2 and 4 (30A)
F4MSF (15A)
F5OBD J1939—BAT (10A)
F6DASH PWR RCPT 1 (15A)
F7DASH PWR RCPT 2 (15A)
F8PHONE/RADIO—BAT (15A)
F9AMPLIFIER PWR (20A)
F10CAB HVAC MTR (30A)
F11SLPR HVAC MTR (30A)
F12DR CTRL L (20A)
F13DR LOCK/SM CRUISE (20A)
F14FLT MGM SYS and CB (25A)
F15SLPR PWR RCPT 3 (20A)
F16STAND ALONE HVAC (7.5A)
F17SLPR PWR RCPT 4 (20A)
F18TELEMATICS/WARNING SYS (15A)
F19HEATED SEAT (20A)
F20CGW (2A)
F21AREA LIGHT (15A)
F22ICU—BAT (5A)
F23DR INF /GAUGE (15A)
F24ICU—IGN (10A)
F25DASH SPLICE PACK (7.5A)
F26SRS—AIRBAG (5A)
F27MIRROR HEAT L (10A)
F28MIRROR HEAT R (10A)
F29SAM RELAY COILS (3A)
F30PWR RCPT 6 / FRIG (20A)
F31SLPR PWR RCPT 5 (20A)
F32PWR FD SPARE 5 and 6 (25A)
F33SPOT LIGHT (20A)
F34BAGGAGE COMP LAMP (3A)
F35DOMELAMP CAB (15A)
F36AUX CIR FAN/RD LAMP (15A)
F37CLK/DRV INFO/CD/KEYLESS (15A)
F38DR CTRL R (20A)
F39PWR WINDOW R (15A)
F40PWR WINDOW L (15A)

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.

2009 Freightliner Cascadia Fuse Boxes Diagram and locations - Ninja Fix (2024)

FAQs

Where is the inside fuse box located? ›

Usually, you will find two fuse boxes in the car. One is located under the hood and the other is found in the dashboard or near the steering wheel.

Where is the fuse box on a 2009 Freightliner business class m2? ›

The main fuse box, also known as the power distribution module, or PDM, is located under the hood on the left front fender just forward of the bulkhead module.

Where is the PDM fuse located? ›

The powertrain PDM contains fuses and relays that provide battery and ignition power to the engine, aftertreatment device, transmission, and other powertrain-related circuits. It is mounted in the engine compartment, above the driver-side inner fender.

How do I know where my fuse box is? ›

Fuse boxes are commonly found in utility rooms, porches or under-the-stairs cupboards. You may also have one in your hallway or garage. Wherever your fuse board is located, you must have easy access to it. Make sure you keep the area surrounding your fuse box clear from clutter.

Where can I get freightliner wiring diagrams? ›

Print your own wiring diagrams with EZWiring.

Troubleshooting and diagnostics have never been easier when you access EZWiring at www.AccessFreightliner.com. Wiring diagrams are available in easy-to-print Adobe® Acrobat files (. pdf).

Where is the secondary fuse box? ›

The main fuse box is typically located under the hood, while secondary fuse panels might be inside the car, often near the dashboard or steering wheel. The fuse's wire conductor breaks when the current exceeds the ampere limit, which manufacturers usually define along with different color codes on each fuse.

How many fuse boxes are there? ›

Most vehicles are equipped with two fuse boxes.

Where is the fuse box on a 2009 Freightliner Columbia? ›

The fuse panel is behind the glove box on the passenger side of the vehicle.

Where is the fuse box on a Freightliner bus? ›

The Freightliner M2 Fuse Box distributes power from the battery to multiple circuits. Located in the Engine Compartment, it helps provide power to the parts of the vehicle that need it, as well as protect them from power surges.

Where is the fuse box on the Freightliner M2 cab? ›

Factory-Wired M2 Fuse

fuse panel under the hood on the driver's side.

Where is the PDM on a Freightliner? ›

Power Distribution Modules

The main PDM is located under the hood on the driver's side above the fender.

Where is the fuse box located in a truck? ›

The main fuse box is typically located under the hood, while secondary fuse panels might be inside the car, often near the dashboard or steering wheel. The fuse's wire conductor breaks when the current exceeds the ampere limit, which manufacturers usually define along with different color codes on each fuse.

References

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