mcdavidbranson
Posts: 6
Joined: Tue May 10, 2016 10:11 am
Delivery Date: 18 Feb 2016

Re: Leaf 2012 won't start or charge [SOLVED]

Tue May 10, 2016 12:10 pm

Great post ! Very informative !

sanjeevanravi
Posts: 1
Joined: Fri Apr 20, 2018 7:33 am
Delivery Date: 20 Apr 2018
Leaf Number: 111442

Re: Leaf 2012 won't start or charge [SOLVED]

Fri Apr 20, 2018 7:49 am

Hi Guys,

I am facing the same issue after gone through a car service where they use the water to clean the engine area. :cry:
From the next charge onward the car stop going to Ready Mode & the same error codes displayed on the screen.

I have cleared the error codes but after 2 days the error again appears while I try the Fast Charge & prevent the car from charging.

Kindly suggest any solutions & I am happy if any one can repost the 3 images posted by digilog on "Re: Leaf 2012 won't start or charge
Wed Apr 20, 2016 7:29 pm" as I could view those images on the from.

I would appreciate your prompt reply.

You can even send the images via email / whatsapp.
+94771125093
sanjeevan.ravi@gmail.com

Thank You.

baustin
Posts: 631
Joined: Tue Feb 24, 2015 1:23 pm
Delivery Date: 09 Mar 2015
Leaf Number: 402162
Location: North Las Vegas, NV

Re: Leaf 2012 won't start or charge [SOLVED]

Fri Apr 20, 2018 2:07 pm

sanjeevanravi wrote:Hi Guys,

...
Kindly suggest any solutions ...


Do Not use pressurized water to clean the 'engine' area on an Electric Car.

Let it sit for a few days and see if it dries out and starts working normally.
2013 Leaf SV - Cayenne Red - QC Port - LED Headlights

braebyrn
Forum Supporter
Posts: 84
Joined: Thu Nov 14, 2013 5:20 pm
Delivery Date: 08 Nov 2013
Leaf Number: 024521
Location: Seattle, WA

Re: Leaf 2012 won't start or charge [SOLVED]

Sun Apr 22, 2018 3:33 pm

Just bought a 2011 Leaf and it has the same fault codes as the OP. How was this solved?


My error codes are C118C, C1A6E, C1A70, P3176, P311C, same as the original poster......


C118C 0109 ABS EV/HEV System BRC-126
C1A6E 0109 BRAKE EV/HEV System BR-146
C1A70 0109 BRAKE Brake Control System BR-160

P3176 00C0 EV/HEV Inverter Condenser EVC-238

(All following systems are disabled due to: P3176
FAIL-SAFE PATTERN
Pattern A: Quick charge prohibited
Pattern B: Normal charge prohibited
Pattern C: READY OFF
Pattern D: High-voltage power supply stop

If DTC P3176 is displayed with DTC ..P311C.. perform diagnosis for DTC ..P311C..)

P311C EV/HEV High Voltage Sys EVC-204

mux
Posts: 150
Joined: Sat Jan 13, 2018 3:52 am
Delivery Date: 13 Oct 2011
Leaf Number: 6177

Re: Leaf 2012 won't start or charge [SOLVED]

Tue Apr 24, 2018 11:04 pm

Step 1 is to try to find out from previous owners (invest some time in this!) what may have happened. Your error codes are consistent with either the precharge relay driver (in the VCM) precharge relay, precharge resistor (both in the battery) or inverter capacitor (obviously in the inverter) having blown. This can be caused by anything from somebody trying to add an extender pack and accidentally shorting the relay wires to gross HV bus mistakes. Depending on what happened, the fix may be as simple as replacing the resistor or relay to having to find a new HV/body harness.

If you can't find it out, my bet is that the precharge resistor has blown. This means you need to drop the battery module, open it up (use a vibrating tool to get through the gasket!), locate the relay module and measure the resistor.

Edit: a note on the brake system error: it is completely normal that this shows along with most other EV/HEV errors. The brake capacitor bank will not get charged if any contactor or isolation error arises, which causes the brake system to report a DTC. This is not actually a failure of the brake system and will clear along with the rest of the errors when you resolve the root cause.

braebyrn
Forum Supporter
Posts: 84
Joined: Thu Nov 14, 2013 5:20 pm
Delivery Date: 08 Nov 2013
Leaf Number: 024521
Location: Seattle, WA

Re: Leaf 2012 won't start or charge [SOLVED]

Mon Apr 30, 2018 9:52 pm

Mux,
Thank you for the info and steps. Much appreciated. Worked this morning on locating the previous owners. I have the title of the car with the owners name and address in Beaverton, Oregon. I suppose I will send him a letter or find a way to get his phone number (address lookup?)

The person I purchased the car from just had a new donor inverter and DC/DC junction box installed. The original ones from the car are in the trunk.

Are there ways to test the relays with a consult II? My neighbor is a Acura master mechanic and has one of his own. He plugged it in once on my other Leaf, but I don't remember if he was able to communicate this deeply with the Leaf.

braebyrn
Forum Supporter
Posts: 84
Joined: Thu Nov 14, 2013 5:20 pm
Delivery Date: 08 Nov 2013
Leaf Number: 024521
Location: Seattle, WA

Re: Leaf 2012 won't start or charge [SOLVED]

Thu Jun 07, 2018 8:40 pm

mux wrote:Step 1 is to try to find out from previous owners (invest some time in this!) what may have happened.


Spent hours on the internet searching for the previous owners and ended up sending a letter to the last known address with an forwarding address request. I got the letter back with a new address in Seattle. Another couple of weeks after that and got a phone call from the original owners. Mux, you were right about investing some time. I hope the answer helps.......

The story is that she went outside in the Seattle winter weather and put the car in defrost to clear the windows and went back inside for 20 minutes. When she came back to go to work, the car did not start, and I think she said it had a dead 12 volt battery. She had the battery replaced and it still wouldn't start. She had it towed to a Nissan dealer in Seattle and they said that they didn't know what was wrong and they could throw a bunch of new parts on it and they didn't know if that would fix it. So they sold it.

When I push the start button, I don't hear it click through all of the relays like my 2012. Mux, do you still think it is the precharge relay driver (in the VCM) precharge relay, precharge resistor (both in the battery) or inverter capacitor (obviously in the inverter) having blown?

Unless someone speaks up and tells me a different place to look we will pull the traction battery down to see what is going on there. Can I swap my good working VCM from my 2012 or is that match to the car?

Thanks for the help

mux
Posts: 150
Joined: Sat Jan 13, 2018 3:52 am
Delivery Date: 13 Oct 2011
Leaf Number: 6177

Re: Leaf 2012 won't start or charge [SOLVED]

Thu Jun 07, 2018 10:46 pm

Ouch, no, that's a much worse situation. You've got a deep discharged battery, or at least probably a single cell that has failed. There's a couple of slightly adventurous ways to try to fix that, none of them very fun times.

The relays can be operated 'manually'. Get the service manuals and figure out the wiring to the VCM. Disconnect the HV wiring from the battery. There are a couple of contacts on one of the connectors on the VCM you have to splice and energize to actuate the battery contacts. Also supply 12V to the battery (this will turn on the BMS). You should then be able to both check with a voltmeter what the battery voltage is (whether it's possible to salvage) and be able to use LeafSpy in BMS mode to read the BMS's battery voltages. Yes, this involves connecting EV-CAN to an OBD dongle via the same VCM connector.

You'll probably be greeted by one or more cells below 3.2V. The only way to fix a beyond-turtle pack like that is to find some source of ~340VDC and directly charge the pack up to 3.22V/cell. One possibility is to use an isolation transformer and some diodes and charge the battery from rectified AC from the mains. Obvious disclaimers and caveats apply. After that, the pack should be alive again and happily charge like normal. If it's just one or two cells clearly being much worse than the rest, you'll want to replace them.

The much more annoying way to go about it is to crack open the battery shell and look inside. This works if the BMS is also dead.

All of this is assuming that the 12V system does work.

braebyrn
Forum Supporter
Posts: 84
Joined: Thu Nov 14, 2013 5:20 pm
Delivery Date: 08 Nov 2013
Leaf Number: 024521
Location: Seattle, WA

Re: Leaf 2012 won't start or charge [SOLVED]

Thu Jun 07, 2018 11:24 pm

Wait, maybe I didn't explain myself correctly. The car turns on now and shows 44 miles on the GOM. I can put the car into neutral, but not drive. When I turn it on, you can hear a couple of relays come on, but not all of them. When I plug in the charger, it starts to flash two blue lights and then clicks off.

Still it has the diagnostic codes and wont go into drive or reverse.

mux
Posts: 150
Joined: Sat Jan 13, 2018 3:52 am
Delivery Date: 13 Oct 2011
Leaf Number: 6177

Re: Leaf 2012 won't start or charge [SOLVED]

Thu Jun 07, 2018 11:37 pm

Ah, hm, well... That's a weird constellation of symptoms. Showing range means the BMS thinks the battery is fine and that the main contactors are closing, otherwise it'd show no range and say you have to push in the brake pedal when you want to put it in anything other than neutral.

This almost sounds like a VCM issue. Could still be contactors, but I haven't encountered this or read about it yet.

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