You should try operating the roof with the engine running and not just battery voltage. If, however, the engine was running then you need a new battery Image Unavailable, Please Login
I'll see about checking it again tomorrow...with the windows up and the car running... I was considering try that plug disconnected and see what the dash does... The top open dash light and buzzer is constant.
Note that the problem now under discussion is not not the same as the topic title. New poster, new fault.
What a screwy deal. I unplugged the 3Q connector, turned the key on and started it and still had the dash light. Killed it, turned the key off, then on and started again. Dash light gone... Turned off, plugged 3Q in again, started car and went through the opening top sequence. Completed and now no dash light on. I may leave it open for awhile since the weather is getting better...Haha After looking at this data report, in the completely open, car running, and no dash light on state, the E.Vv/A Right hook open value of True still does not seem correct. Obviously there's something weird with the voltage also.
Yes, those hook values are abnormal (they should agree with each other with the roof up or down). The pdf file shows that when the roof starts to open, the hooks unlatch (hook "open"?), the microswitches initially show logic "1", then as the roof is further down, they show logic "0" (hook "closed"?). I guess with the roof fully open, the hook state is not important, so no dash light. Can you get access to the RH microswitch to see if it "feels" normal? Interesting. The plug seems to be the only interface between the ECU and the dash. Unfortunately, there are too many possibilities: 1. there is an intermittent short to earth on the wiring between plug 3Q and the dash (assuming the light needs an earth). 2. there is an intermittent short to power on the wiring between plug 3Q and the dash (assuming the light needs a voltage). 3. the wiring forms part of a databus and the instrument cluster processors illuminate the light because of no data being sent. etc... I'm wondering if there are any voltages on those two wires on plug 3Q (from the dash).
Soft top opening sequence NOTES The letters in brackets represent the codes for the components used by the manufacturer. These codes are used on all the soft top wiring diagrams and on the diagnosis help text. 1. The power window lowering signal (SW) is sent to the ECU and brings pin 2, connector 3Q to a low level. When the window are completely lowered, the power window ECU sends the side signal for windows lowered. This brings pin 19 (SWID), connector 2Q, to a low level thereby allowing the sequence to continue. The signal for side windows lowering remains active for the entire soft top motion procedure. 2. The flap lowering control motor is activted even though the flaps are already lowered, in order tohttp://127.0.0.1:8500/F131_S_E/dt/mo/n/n1_07.htm (2 of 5) [3/8/2006 12:12:19 AM] http://127.0.0.1:8500/F131_S_E/dt/mo/n/n1_07.htm ensure a correct position. The correct position of the flaps is ensured by the flap open micro-switch (EFA) which earths the corresponding pin. 3. The hydraulic pump is activated by controlling the relay built in the hydraulic unit, through pin 6, connector 4Q. At the same time, all the solenoid valves are activated, except the one activating the hooks (MVVZ) and the one opening the front part of the soft top (MSDA). In this way the cover, the fins and the front part of the soft top are kept in a closed position while the main piston for roof frame closing controls the opening of the hooks. The hooks opening is indicated by two striker plate micro-switches (EVVDL and EVVDR, connected to each other in series). 4.The sequence continues by turning off the closing valve for the front part of the soft top (MSDZ): The secondary pistons for the roof frame closing stop pushing the front part of the soft top against the cross-member. 5. When the hook opening micro-switches (EVVA L and EVVA R) indicate that the hooks are completely open, the opening solenoid valve for the front part of the soft top is activated (MSDA). The secondary pistons for the roof frame closing take back the front part of the soft top while raising the fins at the same time. 6. To avoid damaging the canvas during the subsequent closing stages, the hooks are closed once again by activating the hook closing solenoid valve (MVVZ) and by keeping it active throughout the rest of the procedure. 7. Once the hooks' closing is confirmed, the solenoid valve for cover activation is turned off (MDZ). This causes the rear protection pistons to open the cover; The completely open position is signalled by the open cover micro-switch (EDA). 8. The main pistons, controlled by deactivating the solenoid valve which activates the central part of the soft top (MVZ), lower the soft top into its bay. Closure of the micro-switch for the soft top inside bay (EVA) causes this stage to be correctly completed. 9. The cover is now closed by powering the cover activating solenoid valve (MDZ). When the closed position is reached, this is signalled by the cover closed micro-switch (EDZ). After a two-second delay, the solenoid valves are deactivated and the motor which activates the hydraulic pump is turned off, in order to ensure completion of the operations. 10. The flaps are then raised by activating the flaps rising control motor. The correct position of the flaps is ensured by the flap closed micro-switch (EFA) which earths the corresponding pin. 11. The operator then has 3 seconds to decide whether to open the windows at the same time. If the operator keeps the soft top control button pressed down, the window raising procedure will take place when the delay time limit is up. If the soft top control button is released, the windows will remain lowered when the delay time limit is up. If the button is released and then pressed, before the delay time limit is up, the window raising procedure will take place immediately. The raise window control is activated by sending a signal with a 25 Hz frequency to the power window ECU for a period of 9 seconds.
Soft top closing sequence The soft top is closed by pressing the soft top closing control button (BVZ) for the entire length of the operation ( N 1.03). 1.The side window lowering signal (SW) is sent to the ECU and brings pin 2, connector 3Q, to a low level. When the windows are completely lowered, the power window ECU sends the side signal for windows lowered . This brings pin 19 (SWID), connector 2Q, to a low level and allows the sequence to continue. The signal for side widow lowering remains active for the entire soft top motion procedure. 2. The flaps lowering control motor is activated. The correct opening of the flaps is ensured by the flaps open micro-switch (EFA) which earths the corresponding pin. 3.The hydraulic pump is activated by controlling the relay built in the hydraulic unit, through pin 6, connector 4Q. At the same time, the main solenoid valve (MN) and the solenoid valve for hook activation are enabled (thereby ensuring that the hooks are closed). In this way, the cover activation solenoid valve (MDZ) is detected as deactivated. This causes the rear protection pistons to open the cover; The completely open position is signalled by the cover open micro-switches (EDA). 4. During the cover opening stage, the opening solenoid valve for the front part of the soft top (MSDA) is activated. The secondary pistons for roof frame closing ensure that the front part of the soft top and the fins are in a closed position. 5. The main pistons, controlled by activating the solenoid valve for operating the central part of the soft top (MVZ), raise the soft top from its bay. Closing of the soft top micro-switch outside its bay (EVZ) ensures the correct completion of this stage. 6.The cover is now closed by powering the solenoid valve for cover operation (MDZ). When the closed position is reached, this is indicated by the cover closed micro-switch (EDZ). 7. The sequence continues by opening the hooks through the deactivation of the solenoid valve operating the hooks (MVVZ) : when the hook opening micro-switches (EVVA L and EVVA R) signal the complete hooks opening, the next stage is started. 8. The solenoid valve for opening the soft top front part (MSDA) is deactivated. Immediately afterwards, the solenoid valve for closing the soft top front part (MSDZ) is activated. This causes the secondary pistons for roof frame's closing to move the front part of the soft top forwards while lowering the fins at the same time. When the micro-switch for front soft top back opens (ESDA), it indicates the progress of the operation. This is completed when the hook opening micro-switches (EVVAL and EVVAR) are no longer activated after the hooks have reached their housing on the cross member. 9. The hooks are closed by activating the solenoid valve operating the hooks (MVVZ). The strike plate micro-switches ((EVVDL and EVVDR connected in series to each other ) and the cross member (EVVZ) indicate that the hooks have closed and that the front part of the soft top has locked onto the cross-member. 10. After a two-second delay, the solenoid valves are deactivated and the motor which activates the hydraulic pump is turned off, in order to ensure completion of the operations. 11.The operator then has 3 seconds to decide whether to open the windows at the same time. If the operator keeps the soft top control button pressed down, the window raising procedure will take place when the delay time limit is up. If the soft top control button is released, the windows will remain lowered when the delay time limit is up. If the button is released and then pressed, before the delay time limit is up, the window raising procedure will take place immediately. The window raising control is activated by sending a signal with a frequency of 25 Hz to the power window ECU for a period of 9 seconds. Key plates and function of the soft top unit's micro-switches: 1. flaps open micro-switch (EFA): indicates the flap lowering (controls the LH flap in particular); 2. flaps closed micro-switch (EFZ): indicates the flaps rising (controls the LH flap in particular); 3. soft top inside its bay micro-switch (EVA): indicates that the soft top has been lowered inside its bay; 4. soft top outside bay micro-switch (EVZ): indicates that the soft top has risen from its bay; 5. front soft top folded back micro-switch (ESDA): indicates that the front part of the soft top has been folded back; 6. LH hook open micro-switch (EVVA-L): indicaes the open position of the LH hook; 7. LH striker plate micro-switches. (EVVD-L): indicates that the LH hook has reached the closed position. (connected in series with the RH striker plate micro-swtich); 8. cross-member micro-switch (EVVZ): indicates that the soft top has safely reached the closed position; 9. RH hook open micro-switch (EVVA-R): indicates the open position of the RH hook; 10. RH striker plates micro-switch (EVVD-R): indicates that the LH hook has reached the closed position. (connected in series with the LH striker plates micro-switch); 11. cover closed micro-switch (EDZ): indicates that the cover has been closed; 12. cover open micro-switch (EDA): indicates that the cover has been opened.
The over thinking here is commendable. When the roof is shut..it looks at 2 micro switches. The windshield header and the tonneau. The tonneau switch you can see inside the engine comparent..it is the furthest rearward on the left hinge. Make sure it is closed. If not adjust it. Windshield header switch rarely ever causes issues. So let's go to the easy one first.
I just saw this thread. Could you repost the links to your drawings? Anything to improve on the confusing ones that Ferrari provided would be helpful. Thanks!
As requested: Roof wiring to main disconnect plug 1Q/31H https://www.dropbox.com/t/CoGovUHJGlK4ivVj Wiring from centre console to main disconnect plug 1Q/31H https://www.dropbox.com/t/4mQcrQVtInb5TTyd Links expire in 6 days @marc64 has kindly posted a permanent text version (above) of the following diagnostic file https://www.dropbox.com/t/3tpzMRhbdnmw1ae4
Guys any updates to these diagrams/ Can somebody repost them since the DropBox is only temporary links?
I'm having trouble with Step 9 which does not start on my vehicle...which makes me assume the top either does not go all the way down into its bay or the microswitch does not tell the car it's all the way down. Does anybody have a pic/location of this microswitch? Thank you all!
Your roof material is not folding properly due to the central bar elastics not pulling it back during roof operation. As the roof is opening move the center bar that is above your head back by hand. The roof will now operate. The material is preventing the full movement of the roof mechanics so it can't contact the micro switch.
Is there a fix to this problem? I'm inclined to think you are right because in the most stowed back position (when the microswitch should activate) part of the top canvas is overlapping the metal edge of the engine bay. I.e. it doesn't go in it's storage area completely. At that point if I push down manually on the whole assembly then the flap that needs to close comes down a little bit but can't close due to the fabric blocking it. Long story short since the car is 20 years old is there an easy way to replace the straps?
The elastic straps are part of the head liner. You can replace it..or have new elastics put in. It's not a difficult job to do really.
