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Is there a correct procedure to follow if your car does not crank when attempting to start. Older DIY motors will do some basic checks starting with the battery. Then they will have to call out a garage.
If the car is still on warranty then calling the DAC assist will provide a convenient solution or will it.
My car is 6 months old and had with no problems for the last 3 months. but before that I had to call out the RAC (via DACIA ) on three occasions . On each occasions they were able to start the car by disconnecting and reconnecting the cars battery but on each occasion the car had to be driven back to the garage for checks and reprogramming..
On the first occasion the RAC man said that although the car had started and ran ok his scan tool would not be able to show what caused the fault because it needed the specialist Renault equipment.
On the 3rd occasion when the RAC was called out they went a little further with their scan tool and declared that the problem was caused by a loss of connection with the BCM body control module. The final return to the garage with a reprogram and possible extra pressure on the garage solved the problem.
From my scant rudimentary out of date knowledge of how the engine is controlled I am wondering now whether RAC did their check correctly and possibly inadvertently caused a red herring with their summary of the possible cause of the fault.
Why has this thought suddenly occurred . Well on each of the three occasion that the RAC attended a breakdown and the car was restarted by temporary battery disconnection they did not do the usual step to protect the computer program which you would use if say were changing a battery.
Yes after interrupting the computer power supply it might be normal for the computer to reset to a mode that disconnects the body control module and just keeps the engine controls.
Shouldn't the RAC have scanned for the problem before getting the car to start by interrupting the power supply to the computer. ?
I have written to the Garage manager asking what caused the problem but he has stalled asking for the car to be returned so that another software patch can be added. He has agreed to postpone this until the car has its first service.
I have a niggling concern about the long term reliability of the computer management and the RAC ability to scan for the problem correctly but am however mollified by the 3 year warranty.
Ambvol
If the car is still on warranty then calling the DAC assist will provide a convenient solution or will it.
My car is 6 months old and had with no problems for the last 3 months. but before that I had to call out the RAC (via DACIA ) on three occasions . On each occasions they were able to start the car by disconnecting and reconnecting the cars battery but on each occasion the car had to be driven back to the garage for checks and reprogramming..
On the first occasion the RAC man said that although the car had started and ran ok his scan tool would not be able to show what caused the fault because it needed the specialist Renault equipment.
On the 3rd occasion when the RAC was called out they went a little further with their scan tool and declared that the problem was caused by a loss of connection with the BCM body control module. The final return to the garage with a reprogram and possible extra pressure on the garage solved the problem.
From my scant rudimentary out of date knowledge of how the engine is controlled I am wondering now whether RAC did their check correctly and possibly inadvertently caused a red herring with their summary of the possible cause of the fault.
Why has this thought suddenly occurred . Well on each of the three occasion that the RAC attended a breakdown and the car was restarted by temporary battery disconnection they did not do the usual step to protect the computer program which you would use if say were changing a battery.
Yes after interrupting the computer power supply it might be normal for the computer to reset to a mode that disconnects the body control module and just keeps the engine controls.
Shouldn't the RAC have scanned for the problem before getting the car to start by interrupting the power supply to the computer. ?
I have written to the Garage manager asking what caused the problem but he has stalled asking for the car to be returned so that another software patch can be added. He has agreed to postpone this until the car has its first service.
I have a niggling concern about the long term reliability of the computer management and the RAC ability to scan for the problem correctly but am however mollified by the 3 year warranty.
Ambvol