Juke Teckna Keyless - Won't Start - Nissan Juke Forum
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post #1 of 3 (permalink) Old 04-14-2017, 01:45 AM Thread Starter
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Unhappy Juke Teckna Keyless - Won't Start

Dear All,
First time posting so please be kind if I inadvertently breach any protocols.
I have owned a Nissan Juke Tekna DIG-T CVT for 2 years, trouble free motoring, and lots fun if you put it in sport mode.
4 weeks ago it just wouldn't start. Its a push button start , and we tried both key fobs and changed the batteries in the fobs, but no joy.
Breakdown recovery checked the cars main battery which was fine, and tried a "reset" by disconnecting the battery temporarily, but car still wouldn't start. All the dash lights come on, and the radio works etc, just no engine !
I had it taken to the "local" Nissan dealer, which is over 1 hour away as we are quite rural here, and asked them to diagnose the fault.
However, they have had it for 4 weeks, and cannot diagnose the fault. They have sent the data to Nissan Technical support, and they think it is either Body Control Module or the main Electronic Control Module. They say they can get the starter motor to turn the engine over, but it will not start.The dealership say they have not seen this type of fault before.
They have given me an estimated cost 2700 to swap both modules , but no guarantee that this will fix the fault, so could cost more.
I have asked Nissan customer services to assist , and they have offered a 25% good will gesture towards the total cost, but as Nissan Technical cannot identify the fault, who knows how much it will cost to fix.
Has anyone had this type of fault before. From searching other online forums I am aware there is a brake unit fault, which can cause the juke CVT to not start, but the garage say this has been checked and is fine.
All advice most welcome.
Thanks to all.
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post #2 of 3 (permalink) Old 05-11-2017, 06:46 AM Thread Starter
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Quick update....the car is still in the garage.
BCM has been changed, fault still persists. The engine turns over, but won't start.
They now think its the ECM. Going to try and get my ECM repaired. New one is 2100 !
The current fault codes are B209F and B26FA.
If anyone has any ideas please ?
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post #3 of 3 (permalink) Old 06-09-2017, 03:28 AM Thread Starter
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To anyone who searches for these fault codes in the future,

Car is finally working. I sent the ECU to a "very speedy" online ECU repair company as found in Google. They found nothing wrong with the hardware or software.
I then returned the ECU to the dealership with lots of questions of exactly what they had tested. They could not give me the answers until the technician who carried out the tests returned from holiday.
Upon their return they fitted the ECU and the car simply started !!!!! They have no idea why this should happen. They have fitted a new battery because they said it was not holding its charge, but have been using one of their test batteries to perform all the checks. The BCM was also not the fault, but I have had to pay for that, with a small discount from Nissan.
The only theory as to why it has started is that the ECU needed a full power discharge to remove all residual charge. This happened during the long time it was off the car getting tested, and when it was fitted back on the car it did a system reboot and the corrupted software repaired itself, and now the car was not getting the false signals, so it started.
Time will tell, but its starting ok for now !
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