21 TROUBLESHOOTING 171
Faults Possible cause Action
Battery discharged Battery is not being charged by alter-
nator
– Check the charging voltage.
– Check the open-circuit current.
The combination instrument shows
nothing on the display
Fuse 7 is blown (RC 125) – Change the fuses of individual power consumers.
( p. 136)
– Set the clock. ( p. 53)
Fuse 2 blown (RC 200) – Change the fuses of individual power consumers.
( p. 136)
– Set the clock. ( p. 53)
Speedometer in combination instru-
ment not functioning
Speedometer wiring harness is dam-
aged or plug-in connection is oxidized
– Check the wiring harness and plug-in connection.
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