Malfunction and Remedies
Fuses
LED L12 glows green when the ignition is switched on, which means that there is a
working power supply to the 24-volt reset fuses in this PCB.
LED L13 glows green when the ignition is switched on, which means that there is a
working power supply to the 9-volt reset fuses of circuit 1 in this PCB.
LED L14 glows green when the ignition is switched on, which means that there is a
working power supply to the 9-volt reset fuses of circuit 2 in this PCB.
The fuses Fr101 to Fr139 are self-resetting fuses. If the light-emitting diode (LED) in a
fuse glows, the fuse is overloaded and the power supply to the connected component
is interrupted. Each self-resetting fuse secures the power supply to a sensor. The LED
on these 39 fuses may not glow. A red LED means that voltage is no longer supplied
to the connected component.
(1) Self-resetting electronic fuses with LED
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