Porsche 2012 911 GT3 CUP Technical Manual page 126

9.4.2. Extinguisher system error analysis
Battery check:
 Hold the toggle switch on the trigger box in the "Battery Check"
position
 If the battery charge state is good the trigger box warning lamp
will blink
Warning lamp does not glow:
 Check battery charge state (refer to 'Battery Installation')
 Check the cable connection to the firing buttons (refer to 'Trigger
box wiring harness')
 Check fire button function
Battery installation:
Attention: The toggle switch on the trigger box must be set in the 'System
Inactive' position.
Remove the trigger box cover and change the battery. Ensure

that the battery poles are connected correctly. Only Alkaline
batteries should be used.
Checking the firing button:
Attention: The toggle switch on the trigger box must be set in the 'System
Inactive' position.
 Throw the toggle switch in the luggage compartment
 If the switch is functioning correctly the trigger box warning lamp
will glow
 Return the switch to the original position
Press the dashboard mounted push button

 If the switch is functioning correctly the trigger box warning lamp
will glow
Trigger box connection:
The firing button '1' is connected to the terminals '3' and '4', firing button
'2' with the terminals '5' and '6'.
Incorrectly connected
extinguisher system.
cables accidentally can fire the
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