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Opel Vivaro 2005: Diagnosing Non-functional Interior Lighting despite OK Fuses and Switches

robert147-k 21105 35
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  • #1 15624852
    robert147-k
    Level 14  
    I have a problem with interior lighting in vivaro. After checking, there is no + on the power supply cable. The fuse is ok and there is + 12v on it. Interior lighting does not illuminate both in the cabin and in the passenger compartment.
    The switches are ok - the meter lights up. What could be wrong and where to look for a fault? Could it be related to the ear module? How to diagnose it?
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  • #2 15624918
    piotrek22101
    Level 39  
    On the left there is a cube on the pedals, through it there is power to the lamps. They may have lost contact.
  • #3 15627721
    robert147-k
    Level 14  
    The contacts look good, I'll check tomorrow whether the cord is ok
  • #4 15627739
    piotrek22101
    Level 39  
    Check the voltage on both sides, wires such as in the lamp.
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  • #5 15627869
    robert147-k
    Level 14  
    And the other way is flying to the fuse or to the module?
  • #6 15627955
    piotrek22101
    Level 39  
    As far as I remember correctly to the module and the fuse on the other hand. Check if the fuses are together with the module or as a separate element.
  • #7 15630819
    robert147-k
    Level 14  
    After preliminary measurements it looks to me that the lamps are controlled by a plus. In this cube I found only 1 wire matching the color and has a (-) transition. Where can I find this module?
  • #8 15630989
    piotrek22101
    Level 39  
    The UCH module looks like this. Opel Vivaro 2005: Diagnosing Non-functional Interior Lighting despite OK Fuses and Switches
    To check you have 5 pins in the UCH brown bar 9 pin pin 1 ground output to the front light pin2 mass output to rear lights green cube 20 pin pin23 weight from rear door sensors pin27 weight from front door sensors, in green 6-o pin pin, pin5 is a time switch + 12v splitted for 3 lights.
  • #9 15637029
    robert147-k
    Level 14  
    at the same time, the time wipers (tick relay) and the temperature display stopped working. Is this related to this module? Instead of temperature there are lines and the sensor is good. The wires going to the sensor have different colors than to the display.
  • #10 15637038
    piotrek22101
    Level 39  
    I do not have an up-to-date diagram of ears, but rather it goes through it. And what are the pins that I gave you above?
  • #11 15637287
    wojtek2510
    Level 9  
    A colleague piotrek22101 at 99% is right, rather the ear will be damaged and the directions work?
  • #12 15638217
    robert147-k
    Level 14  
    Yes, direction indicators and other modules work. The module has been pulled out, but nothing disturbing is visible and it is not flooded. I will check the wires for tomorrow, do they have a passage and if the colors match the components that do not work. Does anyone have a puzzle of these cubes, what for? My UCH has 2 cubes No. P82000461558 - k. must it be exactly this number created?
  • #13 15642238
    robert147-k
    Level 14  
    The relays I exchanged in the ear and unfortunately no effect. When choosing a new UCH module, must it be exactly the same number, or is it similar and it is important to mark n3? In my case there is the number p8200 .... 58 k., And cheaper and more is from the number at the end 56k. After disconnecting the cubes from the module and giving +, the lighting turns on, and as the module is put on, it's as if it was on the wire (-). Krancowka works and mass is.
  • #14 15642299
    wojtek2510
    Level 9  
    If I'm not mistaken it's immo in my ears, you'll also have to lose :)
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  • #15 15642338
    piotrek22101
    Level 39  
    Rather the same number, there may be minimal differences.
  • #16 15642376
    jurekk55
    Level 36  
    robert147-k wrote:
    The relays I exchanged in the ear and non-sine without effect.


    It's not the relays that's responsible. What can be seen in the driver states? Did you check?
  • #17 15642404
    robert147-k
    Level 14  
    There is heavy access after attaching the beam. On the table I checked diodes and transistors. The tile was not flooded.
  • #18 15642433
    jurekk55
    Level 36  
    What about the diagnosis?
  • #19 15642447
    wojtek2510
    Level 9  
    Buy 2 ears often exchanges these modules
  • #20 15642480
    robert147-k
    Level 14  
    My computer does not see any errors in the module. If I bought such a module, copy the contents of 93c .... And will it work?
  • #21 15642500
    jurekk55
    Level 36  
    robert147-k wrote:
    My computer does not see any errors in the module.


    Well, one as if it is certain. What can be seen in the states.
  • #22 15642945
    buliz
    Level 13  
    Friend robert147-k how you removed the UCH module. I have a similar problem Vivaro 2007 lack of rear cabin lighting. I can not get to the PRC for it.
  • #23 15643333
    robert147-k
    Level 14  
    Remove the steering wheel housing and after removing the cubes (after pulling the steering wheel upwards), through the hole, pull it out. It lies on the side of the ignition switch on the shelf. You only miss the back? For me there are not any, and I see that they have a common power supply.

    I have to go to someone who has a better computer (clip), because I have a maxi test and he does not show me anything more.
    I undressed the wiper switch and there is nothing to attach. You can hear the relay in the ear, and the wipers are standing.
  • #24 15643421
    buliz
    Level 13  
    Yes, I miss only the back but I have lamps on it because I can turn on manually. Only from the door do not work. Installation checked.

    Added after 2 [minutes]:

    As far as I know, the power supply on the plus side is common, but because if you left the lighting switched on inadvertently, the controller cuts off the power supply after about 0.5 hours.
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  • #25 15643448
    robert147-k
    Level 14  
    And he cut me off permanently.
  • #26 15643571
    buliz
    Level 13  
    Tomorrow I will try to look into UCH, I will write what and how.
  • #27 15644217
    robert147-k
    Level 14  
    I wonder if they could have turned off these functions programmatically?
  • #28 15644270
    piotrek22101
    Level 39  
    Probably not, from what I remember, UCH always shuts off after a long time.
  • #29 15645452
    buliz
    Level 13  
    So after repair. For info how to get to UCH thank you very much. For me after checking UCH, this was not the cause of the lack of lighting. Namely, my Opel in the original version was 6-passenger. After reworking for 9, the electrician incorrectly connected the ceiling lighting beams. It stood + 12V with mass. I have figured out the UCH as well as I will help. If you do not have + 12V on the lights you have only 2 outputs. Fuse or relay in UCH. Relay marked with an arrow.
    Opel Vivaro 2005: Diagnosing Non-functional Interior Lighting despite OK Fuses and Switches

    Added after 2 [minutes]:

    You can still look at the paths on the PCB going to the relay, they could burn out at the short circuit.
  • #30 15646042
    robert147-k
    Level 14  
    Fuse ok, relays already mentioned earlier (nothing is burned). In the computer I checked the states and the control switch switches the wipers, you can start the computer in state 0. As it switches to time, it shows that it has connected but does not start. I will buy a handle and check. Is there an additional relay for time wipers?
    I turn on the light in the computer, it's no reaction.
    Evidently no + 12v.
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Topic summary

The discussion revolves around diagnosing non-functional interior lighting in a 2005 Opel Vivaro, despite confirmed operational fuses and switches. The user identifies a lack of voltage on the power supply cable and explores potential issues with the UCH (Universal Control Hub) module. Various suggestions include checking connections at the pedal area, verifying voltage on both sides of the wiring, and examining the UCH module for faults. The conversation also touches on the possibility of incorrect wiring due to modifications and the need for precise module replacements. Ultimately, the user discovers that the issue stemmed from improper wiring after a conversion from a 6-passenger to a 9-passenger configuration, leading to a short circuit. The importance of ensuring correct connections and module compatibility is emphasized throughout the discussion.
Summary generated by the language model.
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