Questions & Answers for: Cadillac DTS bcm

...up testing equipment , using a 8 channel lab scope to check electical signals to an from the PCM , BCM ,data bus. Could take a lot of diagnostic time . Did you buy the vehicle new ? Get the factory ...

ok..any help ??? Assuming the center high mounted stop lamp (LED) is OK, both symptoms point to the BCM but in the case of the trunk the valet switch could be on or shorted to turn on

...same thing with or without the relay installed. Anyone have any insight? The body control module (BCM) may be at fault. Which fuse were you checking? There are two fuses in the trunk release

2009 dts inside lights stay on this could be a door switch problem or a BCM problem. access the BCM for codes and data this will help. check to make sure the headlight switch for the interior lights ...

...problem ! Three electronic control modules involved in the starting circuit of this vehicle , BCM - body control module , PCM -powertrain control module , an theft deterrent module ! The ...

...really need a factory scan tool to diagnose this problem , there is a lot involved ! The switch , BCM , wiper relay , an wiper hi relay ! With a scan tool you would be able to access data

.... The pedal position sensor isn't like brake light switch from years past , it's an input for the BCM - body control module .There is three wires at the switch , 5 volt ref. , ground and signal . ...