20 TROUBLESHOOTING 155
Faults Possible cause Action
Battery discharged Ignition not switched off when vehicle
was parked
–
Recharge the battery. x ( p. 111)
Battery is not charged by alternator –
Check the charging voltage. x
–
Check the quiescent current. x
Combination instrument shows nothing
in the display
Fuse 1 blown – Change the fuses of individual power consumers.
( p. 115)
– Set the clock. ( p. 32)
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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