Alta Error Codes


bluefxstc

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ALTA Main Battery Removal/Installation

(These videos are 'unlisted' on the ALTA YT channel)

As a reminder to anyone who hasn't been part of the previous discussions on this topic, the connectors on the HV battery are not intended to be disconnected/reconnected on a frequent basis.
With the apparent demise of Alta it looks like we are going to be relying on each other and videos like this in the future to support our bikes. It would be nice if we could find all the training/maintenance videos Alta made and make them available to current Alta owners.
 

leeo45

Geezer in denial
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We did one. Don't know why it's not there.

It is there, it is just unlisted. Go to the channel homepage and click on 'Playlists'. (or click on the word to the left) All four service videos are in the playlist. The link to the main battery removal is also in the post above yours. I don't know how to imbed the screenshot the way Snydes did for the 9v battery video so it is just highlighted text.
 

hightechnature

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Datadog and Rashid were right!

The fault codes were battery contacts related. The problem went away after the bumpy roads from my home helped jar the contactors to function properly. I suspect that because the bike was new and unused that the contactors got stuck. They should loosen up after more riding. So far, the contactors are not a problem after the last test.. I'll report back if the problem rears it's ugly head.

All good and looking forward to riding on some dirt soon. Thanks again guys!! This forum is great.
 

Redwolf

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Brinnon, Wa.
Datadog and Rashid were right!

The fault codes were battery contacts related. The problem went away after the bumpy roads from my home helped jar the contactors to function properly. I suspect that because the bike was new and unused that the contactors got stuck. They should loosen up after more riding. So far, the contactors are not a problem after the last test.. I'll report back if the problem rears it's ugly head.

All good and looking forward to riding on some dirt soon. Thanks again guys!! This forum is great.
Fantastic, one more EXR on the trails! Further proof these bikes like to get used daily. Guess I better get busy and put some miles on mine for today.
 

Cyrus David

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West palm beach
If needed the contractors are easily replaced (someone with electrical background) or you could modify you battery to install external contractors. I had slaved in a circuit for this and the 12vdc when troubleshooting another problem internal to the battery pack.

809D1830-4838-4869-865D-A2DE3BA86F4C.jpeg
 

hightechnature

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Los Gatos, CA
Thanks for sending the pic. What year and model bike? Rev 9? Also looks like there is a conformal coating which will reduced corrosion and moisture absorption in the components -a good thing in general.
 

ageess

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Location
51399 Burscheid
to complete the list maybe its good to copy and fill in , so we have a complete list at least ! i fill in 009

001: Complete
002: Start Timeout
003: HVIL Cancel
004: DC Disconnect
005: Soft Stop
006: Charger State Error
007: Isolation
009: Charger port wet
101: Positive Relay Welded
102: Negative Relay Welded
103: Precharge Failed
104: No Proximity
105: AC Cable Disconnect
106: Internal Comms
107: Chassis CAN Timeout
108: Temperature High
109: External Comms
110: External Fault
111: Shutdown Timeout
112: Internal Voltage Low
113: DC Timeout
114: Boost Fail
115: Negative Relay Fail
116: AC Relays Welded
117: AC Relays Fail
118: Ground Absent
119: GFI Trip
120: GFI Reset Fail
121: GFI Test Fail
122: AC Voltage Low
123: AC Voltage High
124: Control Failure
125: Sensor Failure
 

Don Thuren

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Bend, Oregon
Quick question all I searched around and I can't find the "for sure" answer...

I have a CODE 33 and a charging (STOPPED : 007 HV isolation) going on)....

Lets say there was water in a connector/harness and that WAS the problem, so I dried it out and sealed/fixed it....

Will the code(s) go away on their own once fixed, or do you HAVE to clear them with Multitool? Cycle the key a few times?

If they are latching any way to clear them WITHOUT Multitool?

Waiting on my data cables to come in/ship and getting antsy haha thanks!!
 

ageess

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51399 Burscheid
Bei mir ging das nach Reparatur und Trocknung von selbst weg.Keine Codes mehr seitdem.War die Kabelverbindung zur Ladebuchse da war Water eingedrungen.
 

datadog

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USA
Code 33 will go away if you begin successful charging, and 9 times out of 10 it is water in the charge port.
 

Don Thuren

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Bend, Oregon
I'm hopeful!

I have this set up on low temperature, and after 10min when I plugged it back in, it still wont charge(STOPPED 007 HV still), but it TRIED to I think as it gave me the "AC cable connected" note where it never did that before. Going to leave this hooked up for a while and cross my fingers!

I also have Scotch 2228 high voltage rated mastic tape ready to seal everything back up if I pull this off.

thumbnail.jpg
 

Mark911

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Location
Corona Ca
Of all the faults a HV Isolation errors is probably the most concerning (from a potential shock hazard standpoint). Alta decided that a high voltage system (above 100v or so) was the best way to go and I agree. However, HV does come with human safety risks that most low voltage system don't have. To minimize this risk Alta designed in LOTs of isolation circuitry wherever HV and LV systems must interact. In addition, Alta incorporated various monitoring circuitry to keep an eye out for potential "leaks" between these systems by sensing the voltages across them. And although the sensing circuits alone constitute a voltage leak the resistances (megaohms) is so high the current flow is almost negligible so essentially there's no electrical connection. However, water or humidity (just about anywhere), certain component failures, and a few other modes can indeed create sneak paths and result in a HV isolation fault. Since the Inverter, BCU, BRDs, and DCCP all contain both HV and LV interacting circuits they are all monitored. I believe the "industry standard" for "low Isolation" is around 2 megaohms. I think Alta starts giving warnings around 3 megaohms and is happy at 4 or above. So, having said all that I'd say check the actual reading when you get Multitool fired up. In other words, 2 megs isn't anything of safety concern but it's an indicator that somethings not right and a catastrophic short circuit could happen eventually. One of the problems with having so many safeguards (like Alta) is that the possibility for false alarms/and or failures of the monitoring/measuring circuits themselves as opposed to the primary circuitry.
 

Don Thuren

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Bend, Oregon
That's what I was figuring it was something like you mention, being the fact there are so many safeguards.

Will be fun once I get the Multitool cables I'm excited to play with it.

I have a 4 axis CNC lathe that will throw a code/error saying there is interference in one of the systems... Nobody can find the problem... Turn the machine off and on and it may error out again in 10 min, or in 6 weeks.... The conclusion is that the system is so sensitive and looking at so many processes it's just "being on the safe side."
 

OneLapper

"You don't *really* need the water pump...."
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Connecticut
@Don Thuren , you're bike wont charge because the "average voltage" of the battery back is 4.08vdc, at which the system shut off the charger. What you actually have are 10 or 11 Pgroups at 3.85vdc, and 73 or 74 Pgroups at or near 4.10vdc. MT will show this very clearly. See my other post for more details.
 

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