General Category > Engine related issues

Anyone come across this fault (F650GS single spark)

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cbonnemayer:
If error 1539 (decimal) is the same as error P0603 (hexadecimal) then this DTC means "Internal Control Module Keep Alive Memory (KAM) Error". According to www.obd-codes.com this means:

"The keep alive memory is the memory that is stored in the powertrain control module (PCM) in regards to drive cycles. This memory is ever changing based on driving inputs and sensor inputs. When you disconnect your battery this memory is erased and the computer goes into "dumb" mode as it is using the built in parameters to run the engine and not the learned values based on driving inputs and habits as well as what the engine sensors see."

Then again, it's not said that BMW used for their model 2000 motorcycles the same DTC's as car builders do.

Regards,

Charlie

WayneC:
The 650GS BMSC is different to the BMS-K and adaptions are not reset on battery disconnection, that was only on the early MA Series Bosch ECU's

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