F4.04 Inertia
switch
Inertia switch operation
The inertia switch is located in front of the driver seat, underneath the floor mat cover.
In the event of a violent collision, the inertia switch cuts the power to the fuel pumps thereby preventing
further fuel leakage from the tank.
The switch is triggered by a steel ball which can move in a tapered seat and is held in place by the attraction
of a permanent magnet.
In the event of a violent collision, the inertia of the ball overcomes the attractive force of the magnet, pushing
the ball up and out of the tapered seat, where it strikes a quick-release mechanism normally forming a
closed circuit.
When the ball strikes the mechanism, the latter changes position, opening the circuit and cutting the power to
the pumps.
Once triggered, the switch may be reset by pressing the top button
(A)
.
CAUTION
If fuel is smelt or fuel leaks are noted from the fuel system after a mild collision, the inertia switch must not
be reset in order to prevent the risk of fire and to enable the safe identification of the cause of the
problem.
Replacing the inertia switch
Fastening inertia switch
Screw
5 Nm
B
Tightening torque
Nm
Class
Located in front of the driver side seat, under the mat.
Disconnect the battery (
F2.01
).
Remove covers and mats (
E4.05
).
Remove the driver side mat.
Summary of Contents for California
Page 19: ...Z Tyre type and pressure label ...
Page 20: ...04 02 Assembly number Assembly number A Assembly number label ...
Page 21: ...04 03 Chassis number Chassis number B Punched chassis number ...
Page 22: ...04 04 Engine type and number Engine type and number C Punched engine type and number ...
Page 23: ...04 05 Chassis number Chassis number D Chassis number ...
Page 24: ...04 06 Gearbox type and number Gearbox type and number E Gearbox type and number plate ...
Page 25: ...04 07 Vehicle identification Vehicle identification K VIN label Vehicle Identification Number ...
Page 28: ...04 10 Fuel Fuel I Fuel label ...
Page 29: ...04 11 Paintwork Paintwork L Paintwork label ...
Page 30: ...04 12 Emissions control Emissions control M Emissions control data label ...
Page 31: ...04 13 Airbag Airbag N Do not install child seat on passenger seat label ...
Page 32: ...04 14 Airbag Airbag O Airbag maintenance label ...
Page 33: ...04 15 Airbag Airbag P Airbag warning label ...
Page 43: ...Fluids and lubricants table Model Fluids and lubricants table Download ...
Page 71: ...Screw the cap A back on tightly ...
Page 104: ...Connect the battery F2 01 ...
Page 118: ...Vehicle Setup Parameter Check Form Model Vehicle Setup Parameter Check Form Download ...
Page 520: ...A DCT gearbox clutch oil tank and clutch oil pump B Clutch oil pipes C Clutch oil radiator ...
Page 623: ...CCM Brake Disc Wear Form Model All Models CCM Brake Disc Wear Form Download ...
Page 1070: ...A Horn button B Engine start button C Manettino ...
Page 1102: ...Perform the respective cycle with the DEIS diagnostic tester ...
Page 1144: ...Connect the battery F2 01 ...
Page 1220: ...Precautions and guidelines for using the RHT retractable hard top ...
Page 1334: ...Undo the indicated fasteners Retrieve the indicated shims Release the clip 1 ...
Page 1335: ...Remove the indicated clip Undo the indicated screw Undo the screws indicated ...
Page 1452: ...Refit the rear wheelhouses E3 05 Connect the battery F2 01 ...
Page 1453: ...F2 07 Lights Diagnosing condensation in headlamps ...
Page 1561: ...Ss Sensor signal λ Lambda ratio excess g Rich mixture M Lean mixture ...
Page 1570: ...Refit the DCT gearbox C2 03 Connect the battery F2 01 ...
Page 1656: ...G Heater evaporator H Pollen filter I Air vents M Expansion valve ...
Page 1677: ...Refit the front wheelhouses E3 05 ...
Page 1686: ...Refit the caps 1 Refit the engine compartment cosmetic shields E3 13 ...