TROUBLESHOOTING 20
235
Faults
Possible cause
Action
Time is not (correctly) dis-
played
Fuse
1
blown
–
Change the fuses of individual power
consumers. (
–
Set the clock. (
12 V battery discharged
Ignition not switched off when
vehicle was parked
–
Charge the 12-V battery.
The 12-V battery is not being
charged by the alternator
–
Check the charging voltage.
–
Check the open-circuit current.
Combination instrument shows
nothing in the display
Fuse
1
or
2
blown
–
Change the fuses of individual power
consumers. (
–
Set the clock. (
Speedometer in combination
instrument not functioning
Speedometer wiring harness is
damaged or plug-in connection
is oxidized
–
Check the wiring harness and plug-in
connection.