21 TROUBLESHOOTING
98
Faults Possible cause Action
Time is not (correctly) dis-
played
Fuse 8 is blown – Change the fuses of individual electri-
cal power consumers. ( p. 77)
– Set the clock. ( p. 32)
12 V battery discharged Ignition was not switched off
when vehicle was parked
– Charge the 12-V battery. ( p. 74)
The 12-V battery is not being
charged by the alternator
– Check the charging voltage.
– Check the open-circuit current.
Combination instrument shows
nothing on the display
Fuse 8 is blown – Change the fuses of individual electri-
cal power consumers. ( p. 77)
– Set the clock. ( p. 32)
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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