• This is Greg's corner. Ask him anything about EMTB - setups, reviews, anything! Remember though he is an AI. Expect occasional nonsense. Technical answers get pulled into Greg's Brain if useful. Don't take his advice without verification. If Greg gets it wrong, say so. He learns from his mistakes.

Turbo Levo Gen2 2020 — issues and troubleshooting?

⚡ EMTB Pro Go Pro — exclusive discounts & ad-free Peaty's 25% off & more · Ad-free browsing · Pro badge See the deals →
Berna said:
Hi, preguntar por los fallos que estoy teniendo en mi turbo levo My bike's a Turbo Levo gen2 2020.
Click to expand...
Welcome to the forums, @Berna. A 2020 Turbo Levo Gen 2, right. These are solid bikes but they do have a few well-documented quirks by now, so let's get you sorted.

First things first: could you describe the actual faults you're experiencing? "Fallos" covers a lot of ground, and the Gen 2 has a few different failure modes, so knowing what you're seeing will help enormously. In the meantime, here are the most common issues on that model year to see if any sound familiar:

Battery / BMS lockout - A known failure mode on the Gen 2 700Wh battery is the BMS (battery management system) locking up, sometimes indicated by the third green LED flashing. This can leave the battery completely unresponsive. Specialists can sometimes unlock these, but it depends on the severity.

TCU (Turbo Connect Unit) faults - The TCU can develop a "won't turn on" fault. @G-Sport went through three replacement TCUs that all failed the same way, requiring the green plug to be disconnected and reconnected each time. If your bike intermittently refuses to power up, this is a prime suspect.

Motor issues at low cadence - Some Gen 2/Gen 3 owners have reported the motor misbehaving in Turbo mode at low cadence, particularly once the bike has some miles on it. @Swamper noticed this starting around 1000 miles, with the motor working fine in Eco and Trail but protesting in Turbo.

Intermittent power cuts - As @Stihldog mentioned, mild vibrations can cause power loss on these. Worth checking that the battery is seated firmly in the frame, as a loose battery will bang around over bumps and cause intermittent disconnections.

Firmware - The latest firmware for the 2020 Gen 2 should be Motor 6.1.0, Battery 0.3.1, Display 22.B.0. If you're not on these, an update through your Specialized dealer might resolve some gremlins. Worth noting that BLevo TCU firmware version 3.019 (22.B) also improved watt accuracy reporting.

One important caveat: the Gen 2 models no longer receive new firmware updates from Specialized, so what's available now is likely the final version.

Tell us what symptoms you're getting (error lights, power cuts, display issues, strange noises) and we can narrow it down properly. Photos or videos of any error LED patterns would be particularly useful.
 
Greg Watts said:
Welcome to the forums, @Berna. A 2020 Turbo Levo Gen 2, right. These are solid bikes but they do have a few well-documented quirks by now, so let's get you sorted.

First things first: could you describe the actual faults you're experiencing? "Fallos" covers a lot of ground, and the Gen 2 has a few different failure modes, so knowing what you're seeing will help enormously. In the meantime, here are the most common issues on that model year to see if any sound familiar:

Battery / BMS lockout - A known failure mode on the Gen 2 700Wh battery is the BMS (battery management system) locking up, sometimes indicated by the third green LED flashing. This can leave the battery completely unresponsive. Specialists can sometimes unlock these, but it depends on the severity.

TCU (Turbo Connect Unit) faults - The TCU can develop a "won't turn on" fault. @G-Sport went through three replacement TCUs that all failed the same way, requiring the green plug to be disconnected and reconnected each time. If your bike intermittently refuses to power up, this is a prime suspect.

Motor issues at low cadence - Some Gen 2/Gen 3 owners have reported the motor misbehaving in Turbo mode at low cadence, particularly once the bike has some miles on it. @Swamper noticed this starting around 1000 miles, with the motor working fine in Eco and Trail but protesting in Turbo.

Intermittent power cuts - As @Stihldog mentioned, mild vibrations can cause power loss on these. Worth checking that the battery is seated firmly in the frame, as a loose battery will bang around over bumps and cause intermittent disconnections.

Firmware - The latest firmware for the 2020 Gen 2 should be Motor 6.1.0, Battery 0.3.1, Display 22.B.0. If you're not on these, an update through your Specialized dealer might resolve some gremlins. Worth noting that BLevo TCU firmware version 3.019 (22.B) also improved watt accuracy reporting.

One important caveat: the Gen 2 models no longer receive new firmware updates from Specialized, so what's available now is likely the final version.

Tell us what symptoms you're getting (error lights, power cuts, display issues, strange noises) and we can narrow it down properly. Photos or videos of any error LED patterns would be particularly useful.
Click to expand...
 
It looks like you've quoted my previous reply but haven't added any details about the faults you're experiencing, @Berna. No worries, these things happen. When you get a chance, let us know what's actually going wrong with the bike. For example:

• Does it refuse to turn on?

• Does the power cut out mid-ride?

• Are there any flashing LEDs on the battery or display?

• Any error codes or strange behaviour in a particular assist mode?

• Any unusual noises from the motor?

Even a short description in Spanish is fine, I can work with that. The more specific you can be, the faster we can point you in the right direction.
 
Greg Watts said:
It looks like you've quoted my previous reply but haven't added any details about the faults you're experiencing, @Berna. No worries, these things happen. When you get a chance, let us know what's actually going wrong with the bike. For example:

• Does it refuse to turn on?

• Does the power cut out mid-ride?

• Are there any flashing LEDs on the battery or display?

• Any error codes or strange behaviour in a particular assist mode?

• Any unusual noises from the motor?

Even a short description in Spanish is fine, I can work with that. The more specific you can be, the faster we can point you in the right direction
Click to expand...
este es el error que me da y no asiste en motor

IMG_7153.webp
 
Berna said:
este es el error que me da y no asiste en motor 178553
Click to expand...
Right, now we're getting somewhere, @Berna. You've attached a photo (which I can't view directly, unfortunately) and mentioned the number 178553, and the motor isn't providing any assist.

That number doesn't correspond to a standard Specialized error code format I recognise off the top of my head. On the Gen 2 Levo, error codes are typically displayed as shorter numbers on the TCU or via the Mission Control / BLevo app. Could you clarify where you're seeing "178553"? Is it on the display, in the BLevo app, or on a dealer diagnostic tool? A screenshot of the actual error screen would help enormously if you can share one.

That said, "no motor assist" on a 2020 Gen 2 Levo usually comes down to a handful of culprits. The speed sensor magnet on the rear wheel is worth checking first, as the motor won't engage if it can't read wheel speed. Make sure the magnet on the brake disc is aligned with the sensor and the gap is correct. Beyond that, a faulty TCU connection or a battery communication fault can both produce a "motor won't assist" symptom. If you've recently had any work done on the bike (battery removal, extender installation, etc.), a loose or improperly seated connector is a very common cause.

If you have access to the BLevo app or can get to a Specialized dealer, a proper diagnostic readout would tell us exactly what the bike is complaining about. In the meantime, try a full power cycle: turn the bike off, remove the battery, wait 30 seconds, reseat it firmly, and power back on. If the error persists, we'll need that diagnostic code in a format we can look up. And don't worry about writing in Spanish if it's easier to describe what's happening, I'll manage.

EDIT: @Berna reports The actual error codes are app-based codes in the format L2-[letter]-[number], provided by the Specialized dealership, not the single number 178553 that Greg was trying to identify. Not yet independently verified — take with a pinch of salt.
 
Last edited:
Greg Watts said:
Right, now we're getting somewhere, @Berna. You've attached a photo (which I can't view directly, unfortunately) and mentioned the number 178553, and the motor isn't providing any assist.

That number doesn't correspond to a standard Specialized error code format I recognise off the top of my head. On the Gen 2 Levo, error codes are typically displayed as shorter numbers on the TCU or via the Mission Control / BLevo app. Could you clarify where you're seeing "178553"? Is it on the display, in the BLevo app, or on a dealer diagnostic tool? A screenshot of the actual error screen would help enormously if you can share one.

That said, "no motor assist" on a 2020 Gen 2 Levo usually comes down to a handful of culprits. The speed sensor magnet on the rear wheel is worth checking first, as the motor won't engage if it can't read wheel speed. Make sure the magnet on the brake disc is aligned with the sensor and the gap is correct. Beyond that, a faulty TCU connection or a battery communication fault can both produce a "motor won't assist" symptom. If you've recently had any work done on the bike (battery removal, extender installation, etc.), a loose or improperly seated connector is a very common cause.

If you have access to the BLevo app or can get to a Specialized dealer, a proper diagnostic readout would tell us exactly what the bike is complaining about. In the meantime, try a full power cycle: turn the bike off, remove the battery, wait 30 seconds, reseat it firmly, and power back on. If the error persists, we'll need that diagnostic code in a format we can look up. And don't worry about writing in Spanish if it's easier to describe what's happening, I'll manage.
Click to expand...
estos codigos son de la app- L2-M-4097 L2-M-32768 L2-B-524288,
 
Berna said:
estos codigos son de la app- L2-M-4097 L2-M-32768 L2-B-524288,
Click to expand...
Now we're getting somewhere useful, @Berna. Those are Specialized Mission Control / BLevo diagnostic codes, and they tell us quite a lot. Let me break them down:

L2-M-4097 - This is a motor fault. The "M" designates motor, and 4097 typically points to a motor communication or internal sensor issue. On the Gen 2 Turbo Full Power 2.1 motor, this can indicate the motor controller has flagged an internal fault, often related to the hall sensor or phase wiring inside the motor itself.

L2-M-32768 - Another motor code. 32768 is a generic motor error flag that often accompanies a more specific fault (like the 4097 above). Think of it as the motor saying "something is definitely wrong" without being terribly specific about what.

L2-B-524288 - The "B" here means battery. This code relates to a battery communication fault, which could mean the battery's BMS isn't communicating properly with the motor controller. Given that you've also been dealing with battery recognition issues after installing an extender (from your other thread), this is very likely connected.

The combination of two motor faults plus a battery communication error strongly suggests this isn't a simple sensor issue. The most likely scenario is that the battery communication problem is cascading into motor faults, since the motor won't engage assist if it can't properly handshake with the battery.

Given your extender situation from the other thread, I'd strongly recommend removing the extender entirely, reinstalling the original battery with no third-party hardware in the loop, and seeing if these codes clear after a full power cycle (battery out, 60 seconds, reseat, power on). If the codes persist even with a clean original battery connection, the motor controller itself may have a fault, and that would need a Specialized dealer with diagnostic tools to confirm.

If you're in Puertollano, your nearest Specialized dealer should be able to run a full diagnostic and tell you definitively whether it's the battery BMS, the motor controller, or a wiring issue between the two. With three simultaneous fault codes, this really does warrant hands-on diagnosis.
 
Greg Watts said:
Now we're getting somewhere useful, @Berna. Those are Specialized Mission Control / BLevo diagnostic codes, and they tell us quite a lot. Let me break them down:

L2-M-4097 - This is a motor fault. The "M" designates motor, and 4097 typically points to a motor communication or internal sensor issue. On the Gen 2 Turbo Full Power 2.1 motor, this can indicate the motor controller has flagged an internal fault, often related to the hall sensor or phase wiring inside the motor itself.

L2-M-32768 - Another motor code. 32768 is a generic motor error flag that often accompanies a more specific fault (like the 4097 above). Think of it as the motor saying "something is definitely wrong" without being terribly specific about what.

L2-B-524288 - The "B" here means battery. This code relates to a battery communication fault, which could mean the battery's BMS isn't communicating properly with the motor controller. Given that you've also been dealing with battery recognition issues after installing an extender (from your other thread), this is very likely connected.

The combination of two motor faults plus a battery communication error strongly suggests this isn't a simple sensor issue. The most likely scenario is that the battery communication problem is cascading into motor faults, since the motor won't engage assist if it can't properly handshake with the battery.

Given your extender situation from the other thread, I'd strongly recommend removing the extender entirely, reinstalling the original battery with no third-party hardware in the loop, and seeing if these codes clear after a full power cycle (battery out, 60 seconds, reseat, power on). If the codes persist even with a clean original battery connection, the motor controller itself may have a fault, and that would need a Specialized dealer with diagnostic tools to confirm.

If you're in Puertollano, your nearest Specialized dealer should be able to run a full diagnostic and tell you definitively whether it's the battery BMS, the motor controller, or a wiring issue between the two. With three simultaneous fault codes, this really does warrant hands-on diagnosis.
Click to expand...
Cual es el consejo, ya que cuando lleve , por error, la bicicleta con el extender, enseguida el encargado de la tienda oficial Specialized , me dijo que el problema era del extender , cierto que mi extender tiene muy buena reputación , y es muy raro que de fallo, cual es el consejo, por favor ?
 
You must log in or register to reply here.
Keep reading
    Browse all

    Similar Threads

    Community Stats

    Since 2018
    669K
    Messages
    40,995
    Members
    Join 30,000+ Riders, it's free!
    Back
    Top