• HW Installation Support
  • SWC button no response after sleep

dudu-lai hi
Hyundai elantra 2010

Yes it is correct also i have tried it on my older unit and it was fine

    6 days later

    Abogrhen Is there a difference between restarting the DUDU7 or restarting the car when the SWC button does not work

      dudu-lai hi
      No difference

      So i notice that if you programed the key and restart the unit directly or
      restart the car it self the same thing
      The button stop responding

        Abogrhen
        When the buttons are out of order, does the number of each button change after re-learning compared to the last time? Normally, the number is fixed no matter how many times it is learned, but if it changes, it may be due to a change in the resistance of the steering wheel.

          dudu-lai
          No
          They stay the same
          Also the resistance numbers
          Doesn't change


            Abogrhen This has never happened before, assuming it's a software issue and the learn icon doesn't disappear but doesn't work when pressed. Assuming the SWC button doesn't work, but nothing was done, just relearned and then worked again, being able to learn on proves the cable connection is fine, confusing me.

              dudu-lai
              Yah
              on thing i can think of
              Is that some services that handled this goes to sleep and don't work again

              But on "canbus" cars the canbus wake the service up so that doesn't happen to them

                Abogrhen Settings - Automotive - Startup Settings - Set to off when engine is off, is this ok?

                  dudu-lai
                  This is the current setup
                  Should i try to set it as shutdown ?

                  I tried the shutdown setting
                  But no difference

                  Try using a CANBUS bus box to see if that solves the problem.

                    dudu-lai
                    Thanks for the suggestion
                    But as far as I know
                    There is no canbus available for my car
                    (Hyundai elantra 2010 )

                    As it older model with standard ISO connection as the car came with JVC unit from factory and later on upgrade it to Kenwood unit
                    Before moving to android head unit
                    And all of them worked with SWC button

                    And as the buttons work fine when programmed it's clearly a software bug

                    Any way i have ordered my self the dudu Bluetooth remote to solve the problem for now

                    But i hope that you can flag this problem and try to get into it later on

                    11 days later

                    hy, im driving also hyundai ix35, 2012 (year of production - car model without CANBUS), only cable, i have question regarding head lights ON/OFF, doors ON/OFF (it shows on car command displey/desktop)...does lights on/off, door on/off only works with CNBUS, or it support some car models without CANBUS?? my swc works solid, only sometimes it dont show volume up/down graphic on screen, and and some buttons are slow to response but i think it is related to usage during years

                      obelix80

                      It is not possible that your car doesn' t have CANbus.
                      CANbus is one of five protocols in OBD-II
                      2001: The European Union makes EOBD mandatory for all gasoline (petrol) vehicles sold in the European Union, starting in MY2001 (see European emission standards Directive 98/69/EC).
                      2003: The European Union makes EOBD mandatory for all diesel vehicles sold in the European Union
                      2008: All cars sold in the United States are required to use the ISO 15765-4 signaling standard (a variant of the Controller Area Network (CAN) bus).

                      See also ISO 15765-4.3:2001 “Road Vehicles-Diagnostics on Controller Area Network (CAN)—Part 4: Requirements for emission-related systems”, (December 14, 2001)

                      So, by law, worldwide, every car has to have CANbus for control of emissions.
                      Actually your car does not have "a" canbus, Most cars have 5-9 CANbuses connected to the several systems in the car.

                      What you proablably mean is that you ordered a unit without CANbus decoder.

                        surfer63
                        Hi although you're replying to @obelix80
                        Your are correct that all cars have obd2 protocol connection nowadays

                        What we mean here is newer cars have a connection to the car radio that make it (smart) by getting some information from other systems

                        Like if the door is open or if the head light is turned on and many more
                        So need to decode the signal
                        So you use a canbus decoder

                        Unfortunately some economy older
                        Japanese - Korean cars think 2015 and older do not have that

                        And use simple ISO radio connections that not communicating with car at this level

                        My car came originally with an aftermarket style one din stereo

                          OK. I understand.
                          Your car simply does not have the CANbus Hi Lo wires (and some more) connected into the ISO plug, or si it seems.

                          Is it not possible via Hyundai or some other source to get an extended ISO plug?

                            surfer63
                            I can't comment about the other guy

                            But for me
                            Adapter harness is pluged in
                            and have the prober connection

                            And it communicating with head unit

                            Also i have used an older unit and it works fine there

                            My only problem with this unit
                            Is after programming the key for the steering wheel
                            They work fine
                            until reboot or restart or deep sleep
                            They stop working

                            For now i have installed a Bluetooth remote control on the steering wheel that i got from dudu

                            I hope they can fix the issue

                            Abogrhen well some hyundai ix35 got canbus depending what originaly came headunit...some units come with biger screens, navigation, revrsecameras etc...my were simple fm radio, cd unit and bluetooth conection for phone...so you think it cant show without canbus decoder

                            surfer63

                            this is cable foe my car