Page 413 - Workshop Manual - Aumark (BJ1051)
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Diagnosis-audio system
6. Checking power circuit of audio system
(a) Use a multimeter to measure voltage to
ground of connector pin 3 of audio unit
B045.
Voltage: battery voltage
4
Is check result normal?
Yes > Replace CD and MP3 audio units.
No > Repair line open between connector pin 3 of audio unit B045 and connector pin 7 of
ignition switch B026.
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