04-22-2024, 08:16 PM
(04-22-2024, 04:31 PM)TheNine90 Wrote:With my old amp(f07) i have no sound and in ista i have b7f4e1 amp undervoltage i check fuse and power on amp and i have 14v so i assume my amp is defective. Now i buy used amp from f10 .amp have same model# and part#. i plug it and when i check with ista code its amp not coded for vehicule. And still no sound. Today i plug my old amp and when i do read ecu i see amp and when i do read vcm and read code on amp i see my car vin# but when i plug new amp not see in read ecu only in vcm and when i do read code vin# are ÿÿÿÿÿÿÿ(04-22-2024, 02:34 PM)Levoff Wrote:Might be you are selecting the wrong module. confirm the name in ista and esys(04-22-2024, 02:14 PM)TheNine90 Wrote: then its not connected properly or unit is dead.Connected properly and good voltage. But if dead why in ista i see amp not coded for vehicule ?
check wiring and voltages