Unplugging gas cap switch on 575M

No wiring diagrams are available for the 575 (outside dealer workshops).

Have you tried replacing the fuse or swapping relays?

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Possibly two of the wires are simply for switch backlighting (usually black and yellow/red on Ferraris). The other wires will be power from the fuse (maybe a single colour) and perhaps a striped wire for the fuel lid actuator relay.

I'm not really sure. I haven't seen a car of this era with a relay in the circuit. Does the 575 need the ignition switch to be on to open the lid?

 

"i can't operate the gas cap from the switch,,"
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What is the problem with the gas cap cover? Do you hear the solenoid when pushing the switch?

 

The manual won't bring you very far. Quavion will.

 

Good point. I forgot that both were on the same fuse. I don't understand why the trunk latch and fuel lid are on the same relay though. Since the two are unrelated, it must be for power. But why would a relay be required at all unless there was some other interlock (like ignition power or, perhaps, vehicle speed)?

(EDIT) The "frunk" on the Ferrari 360 Spider has an ignition requirement for security reasons. Also, child safety locks on later cars have a speed requirement for full frunk unlocking. But there is a dedicated (separate) relay for that function

 

Did you try swapping out the trunk release switch for the fuel door release switch? Pretty much identical except for the graphics.

 

Terry, do you need the ignition to be on for trunk and gas cap operation on the 575M?

It's not mentioned in the 575 Owner's Handbook, but neither is it mentioned in the 550 WSM (and the 550 fuel cap is powered via fuse 4 which needs the ignition to be on).

 

" do you need the ignition to be on for trunk and gas cap operation on the 575M? "
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Both release with ignition off.

 

Affirmative.

 

Thanks, guys.... So the relay must have some other function other than ignition power.

Speed? Volunteers to open the gas cap/trunk at > 5kph ???