Toyota Rav4 EV Forum

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 Post subject: Re: Check EV System warning message
PostPosted: Sat Sep 08, 2018 6:12 pm 
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Joined: Wed Oct 30, 2013 3:44 am
Posts: 165
Location: Santa Cruz, CA
TonyWilliams wrote:
smkettner wrote:
Incredulocious wrote:
Any other ideas? Or is just going to require another visit to a Toyota dealer?
If it is working I would just drive it normal for 2 or 3 weeks before I went to the dealer.

If four start-ups don’t clear the message, and disconnecting the 12 volt doesn’t do it, you’ll have to have the dealer reset the error message coming from the Tesla gateway.

Sadly, pretty normal for a dead 12 volt battery.

Obviously, it’s perfectly safe to drive the car until it’s concenient to get the “CHECK EV” message cleared.

Ask the dealer if is a “P312F” DTC / error message.


Thanks Tony, and everyone else.


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 Post subject: Re: Check EV System warning message
PostPosted: Mon Sep 24, 2018 7:16 pm 
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Joined: Wed Oct 30, 2013 3:44 am
Posts: 165
Location: Santa Cruz, CA
I’m currently at Toyota Sunnyvale looking at a long wait (maybe five hours?) for their EV technician to do diagnosis on my “Check EV System” message that resulted from draining my 12V battery while away for a couple of months.

My issue is that they’ve given me a $298 estimate for doing a diagnosis that I’m told potentialy won’t be covered by my Platinum extended warranty if it’s just a code that needs to be cleared and not due to something that the warranty covers. I’ve pushed back on a fee that seems exorbitant if it turns out an error code just needs to be cleared but they’re not budging on that.

Has anybody had better luck dealing with this somewhere else?

Update (five hours later): Yes, it turned out to just be an error code (yes, DTC 312F) that needed to be cleared. Apparently that translates as "Electric Propulsion Control Module Requested Mil". I don't know what "Mil" means but I'm told that the error code is associated with low voltage on the 12V battery, which of course is what I was expecting. (My Bosch AGM battery tested out fine by them. See my earlier message about recovering it.)

Setting aside the issue we all know already about how leaving your RAV4 EV to sit too long without being used (and forgetting to put it on a 12V battery trickle charger) can kill your non-AGM 12V battery and may result in a dealer-only serviceable "Check EV Message", I see two more glaring issues:

#1: Getting this "Check EV Message" error code cleared is not covered under our extended warranties;
and #2: Toyota Sunnyvale wants you to pay $298 as part of their standard diagnostic service to clear it.


I tried calling and emailing the service department at Toyota Magnussen (Palo Alto) to find out how much they would charge but I didn't hear back in time. The answer eventually came back as $160. In the end, after raising an argument with Toyota Sunnyvale, they lowered their charge to $198 for me. Erg, still too much when all I needed was for them to check and clear an error code.

So, buyer beware and here's another reason to stay away from Toyota Sunnyvale. (Yeah, I know, people have already reported having troubles with them. I mistakenly thought diagnosing an error code with an extended warranty in hand wouldn't leave me gouged.)


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 Post subject: Re: Check EV System warning message
PostPosted: Wed Sep 26, 2018 6:58 pm 
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Joined: Wed Oct 30, 2013 3:44 am
Posts: 165
Location: Santa Cruz, CA
I submitted a complaint (as described above in my previous post) to Toyota Customer Care.
This is the rather disappointing reply:
Quote:
Thank you for contacting Toyota Motor Sales, U.S.A., Inc.

We appreciate the opportunity to address your inquiry.

Per p. 81 of your Owner’s Manual when not using the vehicle for an extended period of time, Toyota recommends plugging in the vehicle whenever it is not in use.

Your email has been documented at our National Headquarters. If we can be of further assistance, please feel free to contact us.

Sincerely,
James F.
Toyota Customer Experience Center

I've replied with the explanation that plugging in the vehicle does not in fact maintain the 12V battery and provided links to various threads on the forum discussing the issue.

(sigh)


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 Post subject: Re: Check EV System warning message
PostPosted: Wed Sep 26, 2018 11:11 pm 
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Joined: Sun Sep 03, 2017 3:46 pm
Posts: 53
Location: Ukraine
Incredulocious wrote:
I’m currently at Toyota Sunnyvale looking at a long wait (maybe five hours?) for their EV technician to do diagnosis on my “Check EV System” message that resulted from draining my 12V battery while away for a couple of months.

My issue is that they’ve given me a $298 estimate for doing a diagnosis that I’m told potentialy won’t be covered by my Platinum extended warranty if it’s just a code that needs to be cleared and not due to something that the warranty covers. I’ve pushed back on a fee that seems exorbitant if it turns out an error code just needs to be cleared but they’re not budging on that.

Has anybody had better luck dealing with this somewhere else?

Update (five hours later): Yes, it turned out to just be an error code (yes, DTC 312F) that needed to be cleared. Apparently that translates as "Electric Propulsion Control Module Requested Mil". I don't know what "Mil" means but I'm told that the error code is associated with low voltage on the 12V battery, which of course is what I was expecting. (My Bosch AGM battery tested out fine by them. See my earlier message about recovering it.)

Setting aside the issue we all know already about how leaving your RAV4 EV to sit too long without being used (and forgetting to put it on a 12V battery trickle charger) can kill your non-AGM 12V battery and may result in a dealer-only serviceable "Check EV Message", I see two more glaring issues:

#1: Getting this "Check EV Message" error code cleared is not covered under our extended warranties;
and #2: Toyota Sunnyvale wants you to pay $298 as part of their standard diagnostic service to clear it.


I tried calling and emailing the service department at Toyota Magnussen (Palo Alto) to find out how much they would charge but I didn't hear back in time. The answer eventually came back as $160. In the end, after raising an argument with Toyota Sunnyvale, they lowered their charge to $198 for me. Erg, still too much when all I needed was for them to check and clear an error code.

So, buyer beware and here's another reason to stay away from Toyota Sunnyvale. (Yeah, I know, people have already reported having troubles with them. I mistakenly thought diagnosing an error code with an extended warranty in hand wouldn't leave me gouged.)

Hi,
1. DTC P312F (Info Code 448) = "Electric Propulsion Control Module Requested MIL (the Malfunction Iluminate Lampe aka "Check Engine Lampe") Illumination.
In other words, the reason for this code is the presence of a malfunction in the Tesla system.
This system can only be diagnosed using the "Tesla Powertrain Service Diagnostics RAV4":
Image
and OEM interface "EV HV Powertrain Diagnostic Cable Kit" (OEM Part.No. 82824-36150-01):
Image

You are told the version of Teslas Electric Propulsion Control System (must be v. 1.3.101*)?
Image

As I understand, those "experts" either can not or do not really want to perform the necessary diagnostics , but they want money ... and a lot ...
I wonder , if they know about the second diagnostic Connector aka DLC3 No.2 ? :mrgreen:

2.
RAV4EV RM for DTC P312F wrote:
DESCRIPTION
When a malfunction occurs in the electric propulsion control system, an electric propulsion control system malfunction signal is sent to the power management control ECU from the EV gateway control ECU. When the power management control ECU receives this malfunction signal, this DTC is output.
...
INSPECTION PROCEDURE
HINT: Since the alert codes are cleared when the power switch is turned off, if no alert codes are output, confirm the conditions present when the malfunction occurred and the P312F-448 freeze frame data. Then, try to reproduce the malfunction and check for alert codes **.

* end of viewtopic.php?f=8&t=2117
** E.g.
Image


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 Post subject: Re: Check EV System warning message
PostPosted: Fri Mar 13, 2020 10:09 pm 
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Joined: Tue Jun 06, 2017 3:55 pm
Posts: 16
Happened to us in our VIN 1111 2012 Pearl White RAV w 67900 miles it stopped at a light and would not go again for my wife, she recycled it a few times and limpled over to a church parking lot and called the hubbie "me" who stormed over in the Suburban. It had the dreaded CHECK EV SYSTEM we actually called Longo Toyota whose number showed up on center console they sent us to call Orange Toyota instead we called toying company but it was at 5pm so they were busy. I went and got a Uhaul tow dolly and took car home where I then had a nice expensive big paperweight.

Based on symptoms and I could restart it but would issue the space age induction sound to motor then quickly go to Neutral and CHECK EV again. I assumed something wrong with drivetrain, called CHARGE POWER go super helpful Alex on the line he said it might just be the Speed Sensor and that they had some so I ordered one picked it up the next day. Jacked up car today and replaced the speed sensor and it works!!!!!!!

Wife is happy again as the RAV EV is back in action only needing a lowly speed sensor. Now if we can source a new supply of speed sensors I suggest everyone carry on in their glove box.

Steve
2012 RAV EV White Pearl
Original Drivetrain new speed sensor
67900 miles


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 Post subject: Re: Check EV System warning message
PostPosted: Tue Oct 20, 2020 2:03 am 
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Joined: Mon Jul 06, 2020 2:40 am
Posts: 1
I have a second hand 2012 RAV4 EV, with over 105K miles on it (warranty expired).

The other day, I washed the car. Next morning, I wanted to charge it. I noticed little water droplets on and around the inner black cap, and also at the bottom of the charge compartment (rubber). It was a very little amount. So, I cleaned them with my fingers and attached the 110V charge connector. The time required for full charge was 4 hours. In the evening, to my surprise, the charge was still not complete! I then disconnected the cable and wanted to drive the vehicle out of the garage. After the System Check, it gave the famous error message: "...take the car to the dealer".

The first thing that came to my mind was to disconnect the auxiliary battery's ground (negative) cable. After doing that, I also opened the charge compartment and the little black lid in an attempt to evaporate remaining moisture, if any. I left the car sit for 24 hours. When I went back and connected the negative battery cable back, everything was back to normal (thank God!!!).

One strange thing: Now the full charge shows 127 miles range! It used to be 84-88-92. The most I've seen was 99. I haven't driven it yet, but I'm sure it'll go down to usual.

I hope this helps somebody in EV community. Let's keep going green. We need to save our precious planet.


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 Post subject: Re: Check EV System warning message
PostPosted: Tue Oct 20, 2020 3:45 am 
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Joined: Tue Sep 12, 2017 5:24 pm
Posts: 11
Congratulations,
you just performed the
Tony-Test: How to Calculate Rated Range/Battery Degradation
and didn't realize it, now if you charged it to 100%
then you would divide your range number by 146 to find out your %degradation.

_________________
2011 Nissan Leaf replaced traction battery at my expense 67000 miles, 112,000 current
2014 Rav4 ev shoreline blue, JdeMo installed, 2 motor replacements, 62,000 miles
2019 Chevy Bolt 12,000 miles, great technology, everything else is cheap/crap


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 Post subject: Re: Check EV System warning message
PostPosted: Thu Oct 22, 2020 8:07 pm 
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Joined: Mon Aug 07, 2017 4:55 pm
Posts: 223
Location: Duvall, Wash.
If water in the J1772 inlet could cause a system malfuntion, I would have seen it by now. Three years parked outdoors, east of Seattle: my charge inlet is ALWAYS wet.

_________________
Regards,
Al Savage
2014 Rav4 EV, Shoreline Blue Pearl, #2609, first use 04Jun2014, 49k miles (Aug2017), OpenEVSE 40A. First DU replacement May2018 59k.
2018 Model 3 LR AWD, blue. 9.6kw solar
1999 E300 on B100 (sold Sep2018)
http://nissandiesel.dyndns.org


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