TROUBLESHOOTING 21
225
Faults Possible cause Action
Turn signal, brake light, and
horn are not functional
Fuse 4 or 6 blown – Change the fuses of individual power
consumers. ( p. 183)
Time is not displayed or not
correctly displayed
Fuse 2 is blown – Change the fuses of individual power
consumers. ( p. 183)
12 V battery discharged Ignition was not switched off
when vehicle was parked
– Charge the 12-V battery. ( p. 175)
The 12-V battery is not being
charged by the alternator
– Check the charging voltage.
– Check the open-circuit current.
The combination instrument
shows nothing on the display
Fuse 2 is blown – Change the fuses of individual power
consumers. ( p. 183)
Speedometer in combination
instrument not functioning
Speedometer wiring harness is
damaged or plug-in connector
is oxidized
– Check the wiring harness and plug-in
connector.
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