no crank, no obd but hazard flasher
#11
I do not believe that is correct. Every module transmits on the bus it connects to. This is regardless of if a module dies. The other modules data still shows up at the OBD port and the appropriate reader will pick it up. The CJB does not pick up the data and resend it or there would be double data on the bus. If there is a break in the bus some data will be available as long as the break is not on the OBD connector stub line.
#14
#15
That is where SDD comes in. It will check every device on the bus and eliminate the ones that are working properly. Also it will tell you the proper places to check for the problem and the method of testing out the bus//modules. A scope will tell you very little since every module transmits on the bus and you would have no idea which ones or what it is 'saying'.
#17
hi guys, it takes a time but now I tried several things to understand the situation.
finally there is a big question without answer, why does the hazard light start when plug the battery even the RCM is not connected?
can anyone help me the question, which condition makes the CJB starting the hazard lights?
finally there is a big question without answer, why does the hazard light start when plug the battery even the RCM is not connected?
can anyone help me the question, which condition makes the CJB starting the hazard lights?
#18
#19
hey, thanks for your input. unfortunatelly the switch isn't it. works fine.
water might be, but must be a long time ago. the problem is now given for about 1 year. of cause I had unmounted the glove compartment. no optical anomalies.
in the init post I forgot to say, I changend CJB, ECU, key etc ... to eliminate this parts as a problem.
same same, "system engine fault", no connection to obd.
and I tried to disconnect everything on the high can, same.
I disconnected nearly everything, plug batterie, hazard flashes
could that be a short circut in any cable next to CJB
water might be, but must be a long time ago. the problem is now given for about 1 year. of cause I had unmounted the glove compartment. no optical anomalies.
in the init post I forgot to say, I changend CJB, ECU, key etc ... to eliminate this parts as a problem.
same same, "system engine fault", no connection to obd.
and I tried to disconnect everything on the high can, same.
I disconnected nearly everything, plug batterie, hazard flashes
could that be a short circut in any cable next to CJB
#20