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Mitsubishi Colt CZC Convertible: Roof Issue, Intermittent Beeping, Non-Responsive Buttons

sebenicz97 18573 17
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Why does the Mitsubishi Colt CZC roof beep intermittently, release the windows and latches, but not continue opening or respond to the roof buttons?

The roof sequence is being interrupted by a fault in the trunk/roof locking circuit, and in one solved case the cause was cut wires in the loom coming from the roof, which fed the two microswitches in the trunk lock [#16747027] The same repair also involved fixing the opening servo in the trunk lock, after which the roof worked normally again [#16744354] Before that, the advice was to diagnose the roof with a factory MUT III tester because the locking system has extensive diagnostics, and to check whether the tailgate/trunk lid reaches the required position, since the procedure stops if it does not [#16743930]
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  • #1 16731730
    sebenicz97
    Level 7  
    Posts: 52
    Rate: 6
    Hello, I am about to buy a colt convertible, but there is a problem with the roof, namely it does not open, after opening the car it beeps (squeaking intermittently), for 5 minutes, after turning the key it starts squeaking again, the roof does not responds to any buttons. Has anyone encountered such a problem what could be damaged and will it be an expensive repair? :)
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  • #2 16731755
    Pedros050
    Level 43  
    Posts: 17906
    Help: 2471
    Rate: 3901
    Hello. The alarm probably has to be liquidated or repaired and the roof control installation to be checked. As for the costs, it is difficult to say the different prices in the workshops.
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  • #3 16731776
    sebenicz97
    Level 7  
    Posts: 52
    Rate: 6
    PITERRR wrote:
    Hello. The alarm probably has to be liquidated or repaired and the roof control installation to be checked. As for the costs, it is difficult to say the different prices in the workshops.

    Can an alarm block the roof? I understand that you can't fix it yourself
  • #4 16731783
    Pedros050
    Level 43  
    Posts: 17906
    Help: 2471
    Rate: 3901
    Would you have to have an installation diagram for this Colt as you know it in this field?
  • #5 16731803
    sebenicz97
    Level 7  
    Posts: 52
    Rate: 6
    I do not have the schematic, unless it is available somewhere on the internet.
    As for electronics, I'm not that green and I could solder something in the controller, etc., if I found parts
  • #6 16731818
    Pedros050
    Level 43  
    Posts: 17906
    Help: 2471
    Rate: 3901
    Then look for the electrical diagram of this Colt.
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  • #7 16731877
    sebenicz97
    Level 7  
    Posts: 52
    Rate: 6
    PITERRR wrote:
    Then look for the electrical diagram of this Colt.

    Ok, I'll be looking, maybe I'll find it. Thanks for your interest in the topic ;)
  • #8 16732013
    Ireneo
    Level 42  
    Posts: 7818
    Help: 746
    Rate: 2453
    Do not take it when it does not work, spare parts as what you will not find, documentation will probably also, and you will wait for weeks and the repair value will exceed the value of the car.
  • #9 16732095
    sebenicz97
    Level 7  
    Posts: 52
    Rate: 6
    Ireneo wrote:
    Do not take it when it does not work, spare parts as what you will not find, documentation will probably also, and you will wait for weeks and the repair value will exceed the value of the car.

    There is nothing about this model and it is also difficult to buy something, so I thought not to get into the mine with this car. Tomorrow I will think about the topic and see more cars
  • #10 16732125
    Ireneo
    Level 42  
    Posts: 7818
    Help: 746
    Rate: 2453
    Mina is with this roof. On the fingers of one hand I think to look for such in Poland, so forget the parts for the roof and the knowledge of our ASO may also surprise you unpleasantly.
  • #11 16732136
    sebenicz97
    Level 7  
    Posts: 52
    Rate: 6
    Ireneo wrote:
    Mina is with this roof. On the fingers of one hand I think to look for such in Poland, so forget the parts for the roof and the knowledge of our ASO may also surprise you unpleasantly.

    Exactly why I rather let go, it will be better to buy 206 cc and everything is working. A car for a woman
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  • #12 16742751
    sebenicz97
    Level 7  
    Posts: 52
    Rate: 6
    Hello again, but I found this Colt because there was no other choice and the price was also good :D The problem with the roof is that the windows go down the hatch opens and it starts squeaking at the end. He does not raise the hatch, when I let go and press the button, they had something in the tailgate lock. I press the second button to close the roof, you can hear that the hydraulic pump turns on and tightens until two beeps signal that the roof has been closed. It turns out that the pump does not want to proceed with the opening of the roof, and it works the other way. I got into the driver, installation, pump, etc. What could be the problem? I will add that I checked all the microstats and they work.
  • #13 16743930
    andexp
    Level 23  
    Posts: 549
    Help: 54
    Rate: 271
    I saw such a car the only time I was at the training in Warsaw, when the new Colts were launched and CZC was among them. Generally, it would be necessary to connect with a factory tester, i.e. MUT III, because the roof locking system in this car has a rather extensive diagnosis, only the current parameters for controlling opening / closing are several dozen.
    To carry out an emergency, i.e. manual opening and closing of the roof to eliminate a mechanical problem, unfortunately I will not say the procedure because I do not remember it, it was quite annoying and complicated. I do remember, however, that to release the latches / security of the roof mechanism located on the sides of the rear seat, the sticks of the pushers from the Polonez were helpful. :) To begin with, two concepts should be adopted:
    - a car after an accident with a damaged roof mechanism
    - damaged mechanism due to too much luggage in the boot and damage / deformation or destruction of the roof mechanisms when closing it
    CZC was created in cooperation with Pinifarina.
    Start with the scratching / jumping you write about. If the tailgate does not reach the specified position, further procedure is suspended.
  • #14 16744354
    sebenicz97
    Level 7  
    Posts: 52
    Rate: 6
    andexp wrote:
    I saw such a car the only time I was at the training in Warsaw, when the new Colts were launched and CZC was among them. Generally, it would be necessary to connect with a factory tester, i.e. MUT III, because the roof locking system in this car has a rather extensive diagnosis, only the current parameters for controlling opening / closing are several dozen.
    To carry out an emergency, i.e. manual opening and closing of the roof to eliminate a mechanical problem, unfortunately I will not say the procedure because I do not remember it, it was quite annoying and complicated. I do remember, however, that to release the latches / security of the roof mechanism located on the sides of the rear seat, the sticks of the pushers from the Polonez were helpful. :) To begin with, two concepts should be adopted:
    - a car after an accident with a damaged roof mechanism
    - damaged mechanism due to too much luggage in the boot and damage / deformation or destruction of the roof mechanisms when closing it
    CZC was created in cooperation with Pinifarina.
    Start with the scratching / jumping you write about. If the tailgate does not reach the specified position, further procedure is suspended.


    Thanks for the answer.
    Namely, yesterday I dismantled the tailgate lock and there was a damaged opening servo in it, it did not come back. I undressed them, there was a broken spring like in the watch "winding", I fixed it, the servo comes out and goes back. There is also a microswitch next to the lock, the same as everywhere else, which is probably part of the roof, pressed in when the servo closes the trunk and open when it opens.
    Later, at the beginning, I disconnected the battery for a few minutes, plugged it in and tried to open the roof, so I press the roof opening button, the windows fall down, then they release the locks in the hatch and there is silence a few seconds later it starts squeaking and at the end, I can only pull the hatch with the second button from closing. The pump just doesn't start to lift the hatch and hide the roof. I was thinking about the driver maybe corrupted. Connecting to the computer will show an error?
    Never crashed the car, everything with the mechanisms looks fine.
    Maybe there are some sensors somewhere that do not demand. I have no idea, this is my first convertible at home and so I try to see everything as far as I know.
    I would like to add that the voltage on the pump goes only when you need to tighten the damper with the second button, no tension is shown when unfolding. Only 4V is on it all the time.
    It comes with 4 cables, 2 thicker, i.e. power and mass, and 2 thinner green ones
  • #15 16746136
    andexp
    Level 23  
    Posts: 549
    Help: 54
    Rate: 271
    I checked and Autodata did not have any diagrams for CZC, I also do not have a service center for it. Everything I knew about CZC I wrote in the previous post. Try to go to an Authorized Service Center and talk like a person to a person, preferably with a service manager. Even if they do not want to take it to the workshop, maybe they will help you with documentation, it is only one CD. Each website has documentation discs for older models, the question is whether anyone still remembers about it. He had to buy them because that is what the Japanese wanted and each ASO got a package with several dozen CDs and a neat stand and a VAT invoice.
    You can also try on Russian forums or on Mitsumaniaki.
  • #16 16747027
    sebenicz97
    Level 7  
    Posts: 52
    Rate: 6
    Ok, thanks for your help, soon I'm going to connect the car to the computer, maybe something will come out.
    The worst thing is that I don't have a mitsubishi service anywhere
    I will fight it, maybe it will be possible, and if not, I will be looking for an ASO

    Added after 4 [hours] 47 [minutes]:

    The problem is solved, the wires that go in the bundle jacket from the roof were cut. They were responsible for 2 microstats in the trunk lock + as I previously repaired the lock servo and now everything is spinning :D
  • #17 16747644
    Ireneo
    Level 42  
    Posts: 7818
    Help: 746
    Rate: 2453
    It's great that it worked
  • #18 17417965
    gwinti
    Level 2  
    Posts: 3
    Rate: 3
    Hello
    It's been a while since the last message, but maybe someone will reply
    I bought a colt but the roof does not open.
    the rear window drive was damaged, I fixed it, I connected it to the computer, I taught the window opening cycle and that's it
    when he wants to open the roof with the button, nothing happens, he just squeaks once for 3 seconds, the closing button squeaks three times briefly
    At the beginning it had 15 errors, only one B2864 PWR was left. Striker HALLSNS: SHT This GND probably means a short to ground only where?
    Maybe someone I greet something

Topic summary

✨ The discussion revolves around issues with the Mitsubishi Colt CZC Convertible, specifically a malfunctioning roof that does not open, intermittent beeping sounds, and non-responsive buttons. Users suggest that the alarm system may be interfering with the roof operation and recommend checking the roof control installation. The importance of obtaining an electrical diagram for troubleshooting is emphasized, as well as the potential difficulty in sourcing spare parts. One user reported a successful repair after identifying and fixing a damaged servo in the tailgate lock, which was affecting the roof mechanism. Another user encountered errors related to the rear window drive and sought assistance in diagnosing a persistent error code. Overall, the conversation highlights the challenges of repairing the Colt CZC's roof mechanism and the need for specialized knowledge and parts.
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FAQ

TL;DR: Colt CZC roof diagnostics expose “several dozen” live parameters; “If the tailgate does not reach the specified position, further procedure is suspended.” Start by checking tailgate lock wiring and sensors before blaming the pump. [Elektroda, andexp, post #16743930]

Quick Facts

How do I fix a Colt CZC roof that beeps and won’t open?

Check the tailgate lock first. Inspect the roof‑loom bundle to the trunk lock for broken wires to the two microswitches. Repair any cuts, then retest the roof buttons. Many no‑open cases clear after restoring those sensor signals and confirming the lock servo works freely. [Elektroda, sebenicz97, post #16747027]

What do the roof beeps mean on the CZC?

Two short beeps after the pump runs indicate the roof has latched closed. If you hear that, the pump and latch cycle for closing completed. Lack of movement during open requests with later beeps points to sensor or latch‑position issues upstream. [Elektroda, sebenicz97, post #16742751]

Why does it keep beeping for about 5 minutes after I unlock the car?

Intermittent beeping after unlocking suggests the roof system sees an unmet condition. Common triggers include a misreported latch state or a blocked sequence. Start with tailgate lock sensors and related wiring, then try roof button tests with the trunk empty. [Elektroda, sebenicz97, post #16731730]

Where are the common wiring break points for the CZC roof?

The frequent failure point is the bundle jacket from the roof to the trunk area. Breaks there can cut signals from the two trunk‑lock microswitches, halting opening. Carefully unwrap, inspect, and solder or replace damaged conductors, then protect with heat‑shrink. [Elektroda, sebenicz97, post #16747027]

Can the alarm block the convertible roof from working?

Yes. Faulty or aftermarket alarm integration can inhibit roof operation. Technicians recommend repairing or removing alarm faults and then checking the dedicated roof‑control wiring to restore proper sequencing. [Elektroda, Pedros050, post #16731755]

How do I diagnose the tailgate lock servo and its microswitch?

Remove the lock and test the servo for free return. A broken clock‑spring inside can jam it. Verify the adjacent microswitch toggles cleanly with the latch. Replace or repair the spring and confirm 12 V command and ground integrity at the connector. [Elektroda, sebenicz97, post #16744354]

What is MUT‑III and do I need it for this roof issue?

MUT‑III is Mitsubishi’s factory scan tool. It exposes several dozen live parameters for the roof, letting you see each latch and sensor state during open/close commands. It speeds diagnosis and avoids guesswork on sensors and sequence holds. [Elektroda, andexp, post #16743930]

What does code B2864 “Striker HALLSNS short to ground” point to?

It indicates a Hall‑effect striker sensor circuit fault, often a short to ground. Inspect the striker sensor wiring at the latch and in the loom for abrasions or crush points. One user reduced 15 initial errors to a single B2864 after repairs. [Elektroda, gwinti, post #17417965]

Is there a manual way to open/close the CZC roof if it’s stuck?

Yes, but it’s tedious. The system has latches near the rear seat that can be released for emergency movement. A trained tech noted the procedure is complex and tool‑assisted; avoid forcing panels. Overfilled trunks can also deform mechanisms. [Elektroda, andexp, post #16743930]

After disconnecting the battery, do I need to reset anything?

Teach the window cycle again so the roof logic sees correct window positions. A user fixed the rear window drive, re‑learned the window operation via scan tool, and continued diagnosis from there. [Elektroda, gwinti, post #17417965]

Quick 3‑step checklist to get the roof moving again

  1. Inspect and repair cut wires in the roof‑to‑trunk loom, especially to the two lock microswitches.
  2. Test and, if needed, repair the tailgate lock servo return spring and switch action.
  3. Clear codes, cycle the roof, and confirm sensor states before blaming the pump. [Elektroda, sebenicz97, post #16747027]

What if the tailgate won’t reach its position and the roof stops?

The sequence halts by design. “If the tailgate does not reach the specified position, further procedure is suspended.” Check latch, servo return, and sensor wiring before hydraulic components. [Elektroda, andexp, post #16743930]

Are parts and diagrams hard to source, and is buying a broken‑roof CZC risky?

Yes. Owners report scarce documentation and parts, long waits, and costs that can exceed the vehicle’s value. Unless priced accordingly and diagnosed, skip examples with non‑working roofs. [Elektroda, Ireneo, post #16732013]
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