Description of operation

DESCRIPTION OF OPERATION

The electronic device inside switch control group H90 controls the rear fog lamp circuit.

The switch, also in group H90 sends the activation signal to the device, that receives the power supply (pin 6 of connector A on H90) from the line direct from the battery, protected by fuse F18 of junction unit B1 and maxifuse J/B1 of B5.

The device controls the rear fog lamp power supply(pin 7 of connector A) in the rear left taillight F30, if one of the two enabling signals is received from the dipped lights or the foglamp.

The first signal (dipped lights on) arrives from stalk unit H5 to pin 8 of connector A (see E2011 - DIPPED LIGHTS). This is an ignition switch power supply (INT) of the line protected by fuse F20 of junction unit B1.

The second signal (foglamps on) .is supplied by the switch control group H90internal circuit.

When the switch is activcated this lights up the button too.

All the switch control group H90is lit up by ignition switch power supply (INT) from the line (pin 5 of connector A ) protected by fuse F22 of B1.

COMPONENTS