“DETROIT DIESEL DIAGNOSTIC LINK DDDL 8.20 SP1 2025” has been added to your cart. View cart
Battery voltage is monitored by the circuits within the Engine Control Module (ECM).
Conditions for diagnostic trouble code (DTC):
1) The voltage is more than 19?V
Probable cause
1) Battery charger connected
2) Alternator
3) Engine control module (ECM)
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