Volvo VN Specifications Page 439

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430MAINTENANCEANDLUBRICATION
CAUTION
Ifthereareothergroundcables
connectedtothebattery(suchas
engineECU,transmissionECU,etc.),
disconnectthosewiresinthesequence
shown,thenremovethemainbattery
groundcable.Electronicmodules
maybedamagedwhentheirground(s)
areconnected/disconnectedwiththe
mainbatterygrounddisconnected.
Therefore,disconnectthemainbattery
groundlastorwheninstalling,connect
themaingroundrst.
CAUTION
DONOTweldontheengineorengine
components.Weldingontheengine
orcomponentsmountedontheengine
cancauseseriousdamagetotheengine
ECU.
Beforeweldingonthevehicle,electricalpowerneedstobedisconnectedandsome
componentsmustalsobedisconnected:
IgnitionOFFposition.
W8003619
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