Starting issue 4200 GT F1 2002 model

[Virendra]

Have a 4200 which ran fine about a year ago but its hazard lights kept flashing. Having opened its key and noticed a broken contact for the micro switch, it seems this was not working and probably could not turn off the alarm. (The Engine however used to run). Got a new Car battery today and on turning on the ign, its KEY ALARM light flashes twice on the dash panel and then goes off. Engine cranks but does not start. Haz lights flashing and do not go off. Need to understand the system. Does the Alarm system/ Haz lights flashing suppress a few things? Disconnected the noisy Batt alarm from the rear boot. Thought the starting of engine is linked to the Magnetic part embedded in the key FOB which is in tact. Have a spare key FOB from a 3200 with exactly similar numbers as this one. Both are single button FOBs. Can they be interchanged or are they programmed for a specific car? If the Key FOB has nothing to do with Engine starting, should I start looking at stuff like fuel pump etc (Seen many pumps get destroyed with gunk when not used for a while.) Any feedback from other user is much appreciated,

 

[TimR]

I think you'll find they `re programmed to the car. Exactly which part ( inside the key)
is linked to the cars ecu, I couldnt tell you. (It may even be the ignition barrel, as they do with bikes and immobilsers)
Neither am I certain what is/isnt possible with a non coded key Im afarid ! Certain locking functions are possible I understand...!!?
You'd need to get an unknown or alternative key "coded" to the vehicle....
There is some info here...http://www.sportsmaserati.com/index.php?threads/4200-key-replacement.26429/#post-632203

 

[BL330]

Is there a padlock showing on the dashboard lights?
If so you need to re-enter the car code from the plastic card in your leather manuals folder.
The method to do this is in the owners manual and involves counting flashes then pressing the accelerator? ( or was it brake pedal ) to enter the code.

 

[CatmanV2]

Have a 4200 which ran fine about a year ago but its hazard lights kept flashing. Having opened its key and noticed a broken contact for the micro switch, it seems this was not working and probably could not turn off the alarm. (The Engine however used to run). Got a new Car battery today and on turning on the ign, its KEY ALARM light flashes twice on the dash panel and then goes off. Engine cranks but does not start. Haz lights flashing and do not go off. Need to understand the system. Does the Alarm system/ Haz lights flashing suppress a few things? Disconnected the noisy Batt alarm from the rear boot. Thought the starting of engine is linked to the Magnetic part embedded in the key FOB which is in tact. Have a spare key FOB from a 3200 with exactly similar numbers as this one. Both are single button FOBs. Can they be interchanged or are they programmed for a specific car? If the Key FOB has nothing to do with Engine starting, should I start looking at stuff like fuel pump etc (Seen many pumps get destroyed with gunk when not used for a while.) Any feedback from other user is much appreciated,

OK let's start at the beginning.

The Hazard lights are run by the alarm, and only the alarm. Same with the door central locking. You can start the car fine with the alarm going.

When you change the car battery, the alarm will go off immediately, It assumes that someone has tried to steal the car.

So can you press the button on the key to arm / disarm the alarm and turn the hazard lights off? If not that's problem one. Your key will need to be coded to the central locking. That's normally done with a working key. It's quite a simple process. Simpler still is to stand next to the car and press the button on the fob twice, quickly. If the codes have got out of sync, this will re-sync them. Try that, then try to arm the alarm again.

For the car to start, the transponder chip in the key (tiny little thing that tends to drop out when people take the keys apart....) needs to be successfully interrogated and give a code which matches the records stored in the car's ECU. If either of those bits fail, your car will crank, but not start.

If you have the code card that BL330 references you can use the emergency process to start the car. This doesn't 'enter' anything in the car. You'll need to do it *every* time you want to start...

Emergency starting

If the Maserati CODE is unable to deactivate the engine immobilizer, the warning light CODE remains on, whereas the warning light EOBD switches off for four seconds to come on again immediately, and the engine does not start. The engine can only be started with the emergency procedure.

WARNING: Each key supplied has its own specific code, which must be stored in the memory of the system control unit.

WARNING: It is recommended to read the whole procedure through carefully before carrying it out.

If an error is made, turn the key back into position STOP And repeat the procedure starting from step 1.
1) Read the 5-digit electronic code found on the CODE CARD.
2) Turn the key to position MAR: at this point, the CODE and EOBD warning lights stay on.
3) press the accelerator pedal down and keep it pressed. After about 8 seconds, the warning light EOBD switches off. Release the accelerator pedal and count the number of times the warning light EOBD flashes.


If you don't have the card you're probably a bit stuck. Pretty sure the 3200 key won't work at all, and certainly without coding, I suspect your only answer would be to go to a dealer.


C

 

[Virendra]

OK let's start at the beginning.

The Hazard lights are run by the alarm, and only the alarm. Same with the door central locking. You can start the car fine with the alarm going.

When you change the car battery, the alarm will go off immediately, It assumes that someone has tried to steal the car.

So can you press the button on the key to arm / disarm the alarm and turn the hazard lights off? If not that's problem one. Your key will need to be coded to the central locking. That's normally done with a working key. It's quite a simple process. Simpler still is to stand next to the car and press the button on the fob twice, quickly. If the codes have got out of sync, this will re-sync them. Try that, then try to arm the alarm again.

For the car to start, the transponder chip in the key (tiny little thing that tends to drop out when people take the keys apart....) needs to be successfully interrogated and give a code which matches the records stored in the car's ECU. If either of those bits fail, your car will crank, but not start.

If you have the code card that BL330 references you can use the emergency process to start the car. This doesn't 'enter' anything in the car. You'll need to do it *every* time you want to start...

Emergency starting

If the Maserati CODE is unable to deactivate the engine immobilizer, the warning light CODE remains on, whereas the warning light EOBD switches off for four seconds to come on again immediately, and the engine does not start. The engine can only be started with the emergency procedure.

WARNING: Each key supplied has its own specific code, which must be stored in the memory of the system control unit.

WARNING: It is recommended to read the whole procedure through carefully before carrying it out.

If an error is made, turn the key back into position STOP And repeat the procedure starting from step 1.
1) Read the 5-digit electronic code found on the CODE CARD.
2) Turn the key to position MAR: at this point, the CODE and EOBD warning lights stay on.
3) press the accelerator pedal down and keep it pressed. After about 8 seconds, the warning light EOBD switches off. Release the accelerator pedal and count the number of times the warning light EOBD flashes.


If you don't have the card you're probably a bit stuck. Pretty sure the 3200 key won't work at all, and certainly without coding, I suspect your only answer would be to go to a dealer.


C

Thanks so v much for the detailed explanation of the process. here is what I did since this post.

Found the broken terminal lug on the micro switch in the key FOB and resoldered it and put new batteries . Now the Hazard lights and central locking can be turned on and off using the micro switch on the fob. Tried to start the car but it would crank with no starting . Pulled out the fuel lines from the rear and tried to crank it. Nothing coming out of the pumps. So I pulled out the fuel tank as I have had the same issues with 4 Ferraris and 2 other Maseratis (all not used for over a year and all of them use the SAME guts for their fuel pumps with variations to their housings). Tested the cables to the fuel pump and the multimeter shows 12V when Engine is cranked. However when I pulled out both pumps and put a cable directly , nothing happened.

I can therefore assume that the electrics are fine but no fuel delivery due to jammed pumps.

Planning to put new pumps and then give it a go. Ordered them today. Will keep you all posted about the progress.

Thanks again for a prompt response.

 

[conaero]

Fuel cutoff valve been tripped?

If you need a new key fob microswitch, I have a load, PM me your address and Ill send you FOC

 

[CatmanV2]

I *think* the fuel cutoff would not prevent the pumps from turning when 12v is applied directly..... (assuming I've understood the testing correctly)

Virendra, you clearly need to sort your fuel issue first. Again, if the pumps are not responding with 12v it seems likely you've found your issue. Although I'm a little worried that both have failed at the same time.....


C