javan
Posts: 84
Joined: Sat Feb 27, 2010 8:45 pm
Delivery Date: 23 Jul 2012
Leaf Number: 022207
Location: Trinidad, CA

Vehicle Dynamic Control (VDC) and brake system warning light

Thu Sep 11, 2014 4:43 pm

My 2012 Leaf with about 28,000 miles on it had its yellow VDC and brake system lights activate on the dashboard. I tried to turn off the VDC controls, but that did nothing for the warning lights. I took the vehicle in for service. The service tech tried to turn off the codes, but they popped right back up when starting the car. They ordered parts (47240-AL500: Sensor Assy hyp.) Two weeks later, they installed the parts (car was driving normally in between appointments). Here is the description from the service sheet: "Pull codes C1142, C1A70. Erase codes and they come right back. Test drive and watch press sensor in ABS and does not change. Test ABS system and op normally. P&A sensor.
Rack and remove cover. Replace one sensor, ck still bad, replace other sensor and lites went off. Erase codes. Stayed away. Reinst cover."
Work was done under warranty so no charge. Warning lights stayed off on drive home. Seems like problem solved so far.
14 BP 225 watt solar panels on the house roof.

johnleaf
Posts: 12
Joined: Thu Feb 11, 2016 5:03 am
Delivery Date: 01 Jun 2012
Leaf Number: 05598

Re: Vehicle Dynamic Control (VDC) and brake system warning light

Thu Feb 11, 2016 5:24 am

Hi,

I just want to give my experience which might be of benefit to someone sometime somewhere.

Same as that - orange EBD light on together with the 2 orange triangle lights. As they were only orange, I wasn't immediately worried. Add to the lights however was a new noise from what I might call the brake distribution module or ABS module under the bonnet of a motor spinning up for 2-3 seconds. This worried me and I suspected a broken shaft or the like in this. Addition worry later when Nissan suggested that the part would cost over 4000 euro and the car is over 3 years old so out of warranty!

Anyway, left it go for months and finally brought it to Nissan for a code read and "DTC C1142 Press. Sen. Circuit and C1A70 Brake control system" codes were returned.

The solution for them was replace the brake pressure sensor - 47240-AL500. Two of them required at a cost of 305.65 euro plus VAT. So off to the internet and found what was listed as the same part number on ebay. A lot cheaper so I took a chance and bought 2. Again time passed with the two sensors in the glovebox and finally the other day (the first sign of spring!)I went at the car. The two sensors are attached to the master cylinder and fairly easy to get at. A 24mm spanner will loosen them after the connectors are removed. However before I did anything, I just connected the new sensors to the car without putting them in to the master cylinder to see if the lights might go out on the dash. And voila! Lights out! So I removed the old ones and inserted the new ones and 2 days later all still good. The code is probably still logged in the car but that's not going to worry me.

Now that the sensors are working again the regenerative braking connecting to the footbrake is back working and more regenerative dots appear when slowing down with the assistance of the footbrake. Braking has also gone back to the slightly gerky way it was until the fault occurred.

Hope this might help in the event of a similar fault.

J.

P.S. Now I've to go away and figure out why the car is not fast charging! Anyone??

Scally
Posts: 3
Joined: Tue Nov 17, 2015 7:49 am
Delivery Date: 17 Nov 2015

Re: Vehicle Dynamic Control (VDC) and brake system warning light

Tue Feb 16, 2016 10:24 am

I have the same two yellow warning lights, phoned the garage today but thought I'd check here too. Cars performance seems OK, and I'm reluctant to have it in for extensive repairs unless it is a safety issue, because it only has three months left on the three year lease. So, how serious is it?

johnleaf
Posts: 12
Joined: Thu Feb 11, 2016 5:03 am
Delivery Date: 01 Jun 2012
Leaf Number: 05598

Re: Vehicle Dynamic Control (VDC) and brake system warning light

Wed Feb 17, 2016 4:14 pm

Orange in my mind means fault but not critical. (Red would mean critical fault) If it's less than 3 years old is it not covered by the warranty? I drove mine for months with the lights on. You might say the regenerative braking not working fully meant I wasn't getting the maximum range but I didn't notice.

bluepassion
Posts: 33
Joined: Sat Jun 25, 2016 5:27 am
Delivery Date: 18 Jun 2016
Location: Nottingham uk

Re: Vehicle Dynamic Control (VDC) and brake system warning light

Wed Aug 03, 2016 8:57 am


johnleaf
Posts: 12
Joined: Thu Feb 11, 2016 5:03 am
Delivery Date: 01 Jun 2012
Leaf Number: 05598

Re: Vehicle Dynamic Control (VDC) and brake system warning light

Wed Aug 03, 2016 4:24 pm

Looks about right and the listing mentions the same number that I had in the previous post. Hope this helps.

bluepassion
Posts: 33
Joined: Sat Jun 25, 2016 5:27 am
Delivery Date: 18 Jun 2016
Location: Nottingham uk

Re: Vehicle Dynamic Control (VDC) and brake system warning light

Thu Aug 04, 2016 12:33 am

Thanks john i dont fancy paying the dealer a fortune and it looks like its been a big problem
[urlhttp://www.leaftalk.co.uk/showthread.php/11781-Weird-glitch-regen-stopped-working/page6][/url] :roll:

bluepassion
Posts: 33
Joined: Sat Jun 25, 2016 5:27 am
Delivery Date: 18 Jun 2016
Location: Nottingham uk

Re: Vehicle Dynamic Control (VDC) and brake system warning light

Thu Aug 04, 2016 6:28 am

Are these the correct sensors
Image

johnleaf
Posts: 12
Joined: Thu Feb 11, 2016 5:03 am
Delivery Date: 01 Jun 2012
Leaf Number: 05598

Re: Vehicle Dynamic Control (VDC) and brake system warning light

Fri Aug 05, 2016 1:42 am

Yes. Bottom of the master cylinder. The new leaf only has one. What I did was connect them electrically only first and when I turned on the ignition the lights went out and the fault was gone. Probably still logged but I didn't care. Then all I had to do was swap out the sensors. I didn't drain the fluid. Just lost a small amount. Hope this helps.

bluepassion
Posts: 33
Joined: Sat Jun 25, 2016 5:27 am
Delivery Date: 18 Jun 2016
Location: Nottingham uk

Re: Vehicle Dynamic Control (VDC) and brake system warning light

Fri Aug 05, 2016 4:14 am

yea this is all really helpful, so what year did it change to one sensor

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