There is no security related message displayed, the starter will crank the engine if the start relay contact is jumpered. The start relay coil operates the realy contacts & the relay contacts are good. The SCU recognizes the smartkey, allows accessory operations. But will not crank engine, or turm on fuel pump, injectors & spark I assume.
Battery is in good condition.
I have another S80 2009 & the operation of the CEM relays sound the same except on the 2007 there is no click of a relay when start button is pushed on SCU.
This car was jumped multiple times because of a defective battery, would cause damage to the CEM or ECM?
Thursday, July 7th, 2011 AT 12:22 PM