F355 F1 Starter (enable) Relay Location Query

Not a problem folks, just curiosity/general interest...

On an F355 F1 car, the F1 TCU (Transmission Control Unit) can inhibit engine start via a relay inline with the starter motor circuit. I'm just wondering where it is on the F1 car. I don't believe it is one of the 3 relays near the TCU on the cabin bulkhead, so I'm guessing it is in the passenger footwell or elsewhere.

There is diode box as part of the inhibit/enable circuit which appears to be under the dash, possibly in the passenger footwell so it may be near this. The F1 system has 4 relays, but there are only 3 relays shown in a workshop manual diagram and in the parts manual.

https://www.ricambiamerica.com/car-diagrams/ferrari/v6-v8/355-group/f355-m5-2-1996/electronic-gearbox-control-valid-for-355-f1-cars.html

Item #12 "REVERSE GEAR RELAY" (Puts on reversing lights when reverse is selected)
Item #13 "RELAY ALT AMP" (F1 Pump relay?)
Item #14 "CONTROL STATION RELAY" (TCU power relay)

Does the F1 Driver's Handbook show the location of the starter enable/inhibit relay?

Thanks
Cheers!

P.S. The starter relay is controlled by TCU pin 30 as shown in the following wiring diagram (version 12)

F1 System Wiring Diagram

 

I think I've found it. It's behind the F1 fuses, mounted on the passenger footwell relay panel (far right hand side on LHD car).

Hope the original owner of this photo doesn't mind me posting his photo here:

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Bosch relay part number 0332019103

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.. and thanks to Ricambi.

Cheers

 

Good question. I suppose the computers wouldn't care if the ignition was off. Just make sure you are in neutral (or the rear wheels are off the ground).

 

I guess it depends on the testing kit. Do you need to hold the compression tester in place when cranking? Are you working alone?