Volvo VN - Page 446

MAINTENANCEANDLUBRICATION437
CAUTION
Attemptingtoworkonelectronic
componentswithoutproperequipment
candamageinternalpartswithstatic
electricity.
CAUTION
Today’svehiclescontainahighnumber
ofelectronicdevices.Itisvery
importanttoexercisecautionwhen
workingonamodernelectricalsystem,
chargingbatteriesorjumpstartingthe
engine.Tominimizetheriskofany
damagetotheelectroniccomponents,
followtheproceduresbelowwhenwork
isbeingdonetotheelectricalsystem.
CAUTION
Weldingonthevehiclecandamagethe
electricalsystemorcomponentsdue
tothehighvoltageandcurrentspikes
thatnormallyoccurwhenwelding.It
ispreferabletoavoidweldingonan
assembledvehicle.However,ifany
structureonorincontactwiththe
vehiclemustbewelded,followthe
recommendationsbelow.
CAUTION
Ifthereareothergroundcables
connectedtothebattery(suchas
engineECU,transmissionECU,
etc.),disconnectthosewiresrst,
thenremovethemainbatteryground
cable.Electronicmodulesmaybe
damagedwhentheirground(s)are
connected/disconnectedwiththemain
batterygrounddisconnected.Therefore,
disconnectthemainbatterygroundlast
orwheninstalling,connectthemain
groundrst.