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ajpurc, Technician
Category: Heavy Equipment
Satisfied Customers: 68
Experience:  Owner of diesel repair shop and mechanic of 8 years.
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A Detroit diesel 12L series 60 with an active code 46 RTC..voltage

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I have a Detroit diesel 12L series 60 with an active code 46 RTC back up voltage low. what are some causes..

ajpurc :

There is a small battery in the ECM and this code is normally an indication that the battery has gone out. I have heard of replacing the battery but I'

ajpurc :

ve never done it personally. Most of the time this code will require a new ECM or a reflash.

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