BCM

Discussion in 'Freightliner Forum' started by Mr Bob, Jul 14, 2022.

  1. Mr Bob

    Mr Bob Light Load Member

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    Got a 2006 Cascadia. Where in the world is the BCM?
     
  2. SWM_TECH

    SWM_TECH Light Load Member

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    Generically , Body control module (BCM) you are asking about? I am thinking that classic Cascadia has two modules the do that function. The Signal Detect and Actuation Module Chassis "SAM" Chassis located roughly in front of the drivers left foot. Remove the left kick panel and you can see the connectors. That powers the chassis items. There is also the Signal Detect and Actuation Module Cab or "SAM" cab that controls and powers the cab systems and that is located in front of the glove box on the passenger side. Open glove box and remove the four Torx T-25 screws. You can see the SAM chassis from the engine side of firewall and should have a cover, that is where your fuses & relays for trailer lights are. If you post last six of VIN we can get you more accurate information.
     
  3. Mr Bob

    Mr Bob Light Load Member

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    oops, its a columbia 6PN72386
     
  4. QUALITYTRUCK

    QUALITYTRUCK Road Train Member

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    Columbia does not use a BCM. It will have a CPC module if it has a Mercedes engine. Are you thinking of PDM? There are 2. Main and auxillary. Also called "fusebox"
     
    RocketyMan Thanks this.
  5. SWM_TECH

    SWM_TECH Light Load Member

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    I don't have experience with the Columbia except driving back 2006. The manual says There are two power distribution modules. The main power distribution module is the electrical power center of the vehicle and is mounted underneath the electrical cover inside the upper dash assembly (right-hand panel). Also,
    there is also an auxiliary power distribution module mounted on the inside of the electrical compartment door located on the B-pillar on the left-hand side behind the seat.
    The auxiliary power module has three horizontal rows:

    The top row contains several fuses for the sleeper lighting and one sleeper HVAC circuit breaker.

    The middle row contains three relays for the sleeper HVAC.

    The bottom row contains ignition and battery power for the ABS and data logging unit (DLU).
     
  6. Mr Bob

    Mr Bob Light Load Member

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    that is what ive found. I cant get the wabco abs to communicate.