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MAN TGX 2010 - PTM Error 5 05622-05: What Does It Mean & How to Fix?

uhr 48678 17
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What does PTM 5 05622-05 mean on a MAN TGX, and how can I fix it?

PTM 05622-05 means PTO 1 high-side output short-circuited to earth/ground. [#16663503] It refers to the gearbox power take-off control, which is operated by the PTM through the air valve in the vehicle’s center frame, so the first things to check are the valve itself and its wiring; the fault is electrical and related to circuit resistance. [#16667958] If the truck does not actually have a PTO fitted, the option can be removed/disabled in MAN Cats. [#17644722] If you want to clear the fault without the original valve, connect a suitable resistor to the default PTM output and the error should disappear. [#17783856]
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  • #1 16660746
    uhr
    Level 17  
    Posts: 596
    Rate: 302
    Hello and welcome
    Anyone know what the PTM 5 05622-05 error is about?
    I've searched but can't locate it.
    Thank you
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  • #2 16663503
    darfur5
    Level 35  
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    PTM 05622-05; PTO 1 high side output, short-circuit to earth. That's all I found, hope it helps.
  • #3 16667457
    uhr
    Level 17  
    Posts: 596
    Rate: 302
    Short to ground? Hmm, what's that about? Nor delete it.
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  • #4 16667958
    svavecone
    Level 25  
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    The power take-off on the gearbox is activated by air pressure from a valve in the center frame of the vehicle. This valve is PTM operated (the older controller is FFR).
    Look for damage to the valve itself or the wiring to it. The fault is purely electrical, the resistance of the circuit.
  • #5 16677094
    uhr
    Level 17  
    Posts: 596
    Rate: 302
    But is it standard Man TGX, or as an addition and additional drive to some mechanism?
    Because this Man is a standard, unless there was an appetizer and now it's gone.
  • #6 16677105
    svavecone
    Level 25  
    Posts: 586
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    Rate: 452
    It is a control computer, it is present in all MANs from the TG A ... TG L generation, i.e. from around 2000. In the first phase they called it FFR now PTM. You won't go without it. Communicates the engine controller with the vehicle.
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  • #7 16677150
    uhr
    Level 17  
    Posts: 596
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    Anyone have a picture of this valve to locate it?
  • #8 16677155
    svavecone
    Level 25  
    Posts: 586
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    Rate: 452
    The photo won't give much, because there are several valves. Disconnect the air line from the PTO and blow air in there, it should come out of the valve you are looking for :)
  • #9 17644175
    uhr
    Level 17  
    Posts: 596
    Rate: 302
    The problem is that there is no PTO in this car. Maybe she was and is gone and the computer doesn't know about it? is it programmable? How do I add an appetizer?
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  • #10 17644722
    darfur5
    Level 35  
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    Yes, it's optional and can be removed if you don't have the snap. MAN Cats can handle it.
  • #11 17783791
    uhr
    Level 17  
    Posts: 596
    Rate: 302
    If the snap-in was disconnected and nothing was moved in the software and the PTM error is active, is it possible that intrader 3 does not work because of this?
  • #12 17783856
    svavecone
    Level 25  
    Posts: 586
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    Rate: 452
    As for the error, invest in a valve or prepare a suitable resistance connected to the default PTM output and the error should disappear.
    As for the intarder, I don't think "this" PTO error has any effect on its operation.
  • #13 17783935
    thesperado
    Level 14  
    Posts: 86
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    Rate: 70
    svavecone wrote:
    or prepare a suitable resistance connected to the default PTM output and the error should disappear

    Good advice. In addition, check how the FMI code changes depending on whether you have the original valve connected, substitute resistance or wires not terminated with a valve. I got a TGA with a damaged FFR by this type of valve, although this should not happen. When replacing the valve, someone used a replacement with a different pin connection (made a short circuit) and FFR fell because of it. Everything should be protected against a short circuit, but ... it wasn't.

    uhr wrote:
    If the snap-in was disconnected and nothing was moved in the software and the PTM error is active, is it possible that intrader 3 does not work because of this?

    Is there anything saved in the intarder driver?
  • #14 17784055
    uhr
    Level 17  
    Posts: 596
    Rate: 302
    ZF intarder3 error 4222 oil temp sensor still appears? The harness of 3 sensors replaced, data appears on each of the sensors. The oil temp sensor works and the problem continues. The problem is that autocom only shows the active one and cannot be deleted 4222 in the intrader tab, the rest of the error is missing.
    The car has passive only the intrader module was switched, maybe that's why they appeared for a while (ret-s 4234-04 4266-04 4270-04 and PTM active 5622-05 ptm Power take-off on the gearbox can it also mix in the intarder?

    The throttle moves, the braking force appears on the display, but nothing happens.
    Oil filter changed, coils checked and working.
    Is this error related to the sensor or something else and autocom interprets it wrong?
  • #15 17784120
    svavecone
    Level 25  
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    Read the values sent by this sensor, see what the temperature is.
    Also be sure that the controller is properly powered.
  • #16 17784378
    thesperado
    Level 14  
    Posts: 86
    Help: 6
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    What is your FMI with this IT3 4222 code?
  • #17 17806935
    Kaze89
    Level 8  
    Posts: 6
    Rate: 2
    There should be a relay for the PTO under the front grille on the passenger side, try removing it. In the "older" models there was probably also a plug on the passenger side at the back of the engine near the cabin lowering sensor. There should also be a signal to the PTO if it's factory.
  • #18 18153197
    uhr
    Level 17  
    Posts: 596
    Rate: 302
    darfur5 wrote:
    Yes, it's optional and can be removed if you don't have the snap. MAN Cats can handle it.


    Where is the option to disable this in mancats? I only see the VU test options.
    I only have a preview that it is active (power take-off 1 YES)
    I found the harness cut, but are these 4 cables. (marked 70 157 70 391+permanent after the ignition switch 70 393 and brown.
    MAN TGX 2010 - PTM Error 5 05622-05: What Does It Mean & How to Fix?
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Topic summary

✨ The PTM error code 5 05622-05 on the MAN TGX 2010 indicates a short-circuit to earth in the PTO 1 high side output. This issue is primarily electrical, often related to the power take-off (PTO) valve, which is activated by air pressure from a valve in the vehicle's center frame. Users are advised to inspect the valve and its wiring for damage. If the PTO is not present, it may be necessary to program the vehicle's computer to reflect this change. Solutions include investing in a new valve or using a suitable resistance to eliminate the error. Additionally, the discussion touches on related issues with the ZF intarder and its error codes, suggesting that the PTO error may not directly affect the intarder's operation.
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FAQ

TL;DR: MAN TGX 2010 PTM code 05622-05 points to PTO1 (1 high‑side output) short‑to‑ground; “PTO 1 high side output, short-circuit to earth.” Check the solenoid/wiring or de-code PTO if hardware is removed. [Elektroda, darfur5, post #16663503]

Why it matters: This code can disable PTO functions and confuse downstream diagnostics unless you fix the circuit or reconfigure PTM for no-PTO use.

Quick Facts

What does PTM error 05622-05 mean on a MAN TGX 2010?

It means the PTM detected a short-to-ground on the PTO1 high‑side output. This is an electrical circuit fault, not a software glitch. Inspect the PTO solenoid circuit first. [Elektroda, darfur5, post #16663503]

Where is the PTO control valve and how can I locate it quickly?

The PTO is air‑actuated. Pull the PTO air line, blow air into it, and trace where it exits to identify the correct valve among several. This speeds up locating the controlled valve on the chassis. [Elektroda, svavecone, post #16677155]

Is PTM standard or an add‑on module?

PTM (earlier FFR) is the core vehicle control computer on MAN TG ranges, present since around 2000. You cannot operate without it because it brokers engine–vehicle communications. [Elektroda, svavecone, post #16677105]

My truck has no PTO hardware—can I disable PTO1 in software?

Yes. PTO is optional. Use MAN Cats to configure PTM so PTO1 is not present. This removes recurring PTO faults after physical removal. [Elektroda, darfur5, post #17644722]

How do I clear 05622-05 if the PTO hardware was removed?

Either refit the correct valve/solenoid or install a suitable load resistor on the PTM’s PTO1 output to simulate the valve. Then clear codes. “Prepare a suitable resistance…and the error should disappear.” [Elektroda, svavecone, post #17783856]

Will a PTO1 fault stop the ZF Intarder 3 from working?

No. The PTO1 short‑to‑ground error does not affect Intarder logic. Troubleshoot the Intarder separately for its own codes and inputs. [Elektroda, svavecone, post #17783856]

Can the wrong valve or miswiring damage PTM/FFR?

Yes. A replacement valve with different pinout caused a short that destroyed an FFR. Everything should be protected, but failures happen. Edge case: controller damage after miswired valve. [Elektroda, thesperado, post #17783935]

Where are the PTO relay and factory signal connector located?

Expect a PTO relay under the front grille on the passenger side. Older models also have a PTO signal plug near the cabin‑lowering sensor at the rear of the engine. [Elektroda, Kaze89, post #17806935]

Three quick steps to diagnose a PTO1 short-to-ground

  1. Unplug the PTO solenoid and inspect the loom for chafing or earth contact.
  2. Fit the correct valve or a suitable resistor to the PTO1 output and observe code status.
  3. Clear codes with MAN Cats and recheck under load. [Elektroda, svavecone, post #17783856]

What wire labels might I see in the PTO harness?

Users report four cut wires marked “70 157,” “70 391,” “70 393” (ignition‑switched +), and brown (earth). Verify against your truck’s wiring diagram before repairs. [Elektroda, uhr, post #18153197]

Is the PTO fault mechanical or electrical?

Electrical. The code indicates circuit resistance or shorting, not air system pressure. “The fault is purely electrical.” Focus on wiring, coil, and connector integrity. [Elektroda, svavecone, post #16667958]

What is PTM and how is it different from FFR?

Both are MAN control computers. FFR is the older generation; PTM is the newer name. They link engine and vehicle systems and manage outputs like PTO. [Elektroda, svavecone, post #16677105]

Autocom shows Intarder 4222 as active and won’t delete—normal?

Yes. One user saw 4222 (oil temperature sensor) stuck active in Autocom while other errors didn’t display. Use a marque‑specific tool for full Intarder diagnostics. [Elektroda, uhr, post #17784055]

How do I verify the Intarder temperature sensor reading?

Read the live data from the oil temperature sensor and confirm controller power and grounds. Fix power issues before chasing sensor faults. [Elektroda, svavecone, post #17784120]

Does PTM manage only one PTO?

This fault references PTO1. PTM can manage multiple PTO configurations, but 05622-05 specifically flags the first high‑side output. Treat it as a single‑circuit fault. [Elektroda, darfur5, post #16663503]
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