I have removed the brake light switch and it tested good.
No I have never determined why may smart won;t start, I thought it was the SAM unit so I sent the SAM unit,ECU, instrument cluster and a key to SOS diagnaustics and they put my modules in there test car and everything worked fine. my ignition tests good, the imobilizer ring is good. I have narrowed the problem down to the CAN Bus I think.person with smart car wont start, mine doing same thing did you ever figure it out, mine had a cup of water spill on the dash, right over the fuse box then quit
CAN stands for central area networking, and bus is a group or cluster. an example of a bus would be your fuse bus. CAN was developed by Bosh and consists of 2 wires that connects all of the modules in your car such as the ECM, TCM, SAM, instrument cluster, ABS module and so on. Each module receives and transmts signals through these two wires. Each module has its own bianary code so no other module will get a code intended for the module the coded signal is intended for. Every module communicats with each other over these two wires. Each module receives a command from the SAM unit and responds back to the SAM unit. The 2 wires consist of a CAN high and a CAN low, the CAN is connected to the OBDII port and the CAN is what a code reader or scan tool communicates with when pluged into the OBDII port. Any module that malfunctions has the info stoed in the CAN BUS as to what the malfunction issue purtains to.thank you for replying so fast, im sorry when I said it quit right away it did not it made it home the when tried to start again next day would no start. can you tell me what the CAN BUS is, thanks