Problem with Sony GT460U

nirmalrshah · 11th October 2007, 23:47

I recently installed a new Sony GT460U in my Ford Fusion (Petrol). The unit keeps switching off momentarily and resetting itself every few minutes when I am driving. This NOT just when I start the engine or anything.

I didnt observe any electrical problem with any other component in the car (lights, AC).

I tried having the whole thing rewired, changed the system and the panel - but I still have the same problem.

Any suggestions?

Thanks,
Nirmal

vebmetal · 12th October 2007, 00:01

Do you have a warranty? Have you tried another HU?

nirmalrshah · 12th October 2007, 00:10

You mean another HU same model? Yes - that didnt work. Its under warranty - the dealer changed every thing - wiring, system, panel... that didnt help...

clipto333 · 12th October 2007, 01:49

could be a bad ground or positive wire. try to install a new ground near the HU console. and please ask your install to check the positive wires(battery and accessory).

cheers
clip

nirmalrshah · 12th October 2007, 03:40

They rewired everything twice, so I am guessing they must have checked that. But I will have them check again...thanks!

navin · 12th October 2007, 10:34

Quote:

Originally Posted by nirmalrshah

I recently installed a new Sony GT460U

try a Pio HU. any one.

DerAlte · 12th October 2007, 16:30

If another HU hadn't been tried one would have suggested why don't you (or your installer) unmount the HU, connect a battery to it OUTSIDE the car and check if it does the same thing. Could have been a dry soldering problem, but this cannot happen with 2 HUs.

Otherwise, connect a lamp (yes, any automotive 12V lamp) to the reset wire (I think it is a red with yellow strip or the other way around) that is coming to the HU. This signal is supposed to go ON when you turn the key to crank the engine. If the lamp goes on intermittently WITHOUT you cranking the engine, there is some locha in that wire.

Another way the installer could check would be to disconnect only that wire and play the HU.

nirmalrshah · 12th October 2007, 22:01

They did try checking by fixing a bulb and it didnt blink! Now here is something curious I discovered today - when I start the system, I turn the volume down to 0 and then slowly (not in one go) - increase the volume one notch by one wiaitng a couple of seconds before increasing every notch - when I do this, the system does not restart!

I am not sure about this - I will try to do this a couple of times and see what happens...

nirmalrshah · 14th October 2007, 14:18

I saw this one on JC Rd too- dealer is car jewel...

nirmalrshah · 15th October 2007, 01:21

the earlier post was meant for another thread sorry about that...

I had a false alarm with the low volume story - that didnt work. my system still resets randomly.

11th October 2007, 23:47	#1
nirmalrshah Newbie Join Date: Oct 2007 Location: Bangalore Posts: 22 Thanked: 39 Times	Problem with Sony GT460U I recently installed a new Sony GT460U in my Ford Fusion (Petrol). The unit keeps switching off momentarily and resetting itself every few minutes when I am driving. This NOT just when I start the engine or anything. I didnt observe any electrical problem with any other component in the car (lights, AC). I tried having the whole thing rewired, changed the system and the panel - but I still have the same problem. Any suggestions? Thanks, Nirmal
	() Thanks

12th October 2007, 00:01	#2
vebmetal BHPian Join Date: Aug 2006 Location: New Delhi Posts: 798 Thanked: 21 Times	Do you have a warranty? Have you tried another HU?
	() Thanks

12th October 2007, 00:10	#3
nirmalrshah Newbie Join Date: Oct 2007 Location: Bangalore Posts: 22 Thanked: 39 Times	You mean another HU same model? Yes - that didnt work. Its under warranty - the dealer changed every thing - wiring, system, panel... that didnt help...
	() Thanks

12th October 2007, 01:49	#4
clipto333 BHPian Join Date: Dec 2006 Location: jalandhar Posts: 912 Thanked: 7 Times View My Garage	could be a bad ground or positive wire. try to install a new ground near the HU console. and please ask your install to check the positive wires(battery and accessory). cheers clip
	() Thanks

12th October 2007, 03:40	#5
nirmalrshah Newbie Join Date: Oct 2007 Location: Bangalore Posts: 22 Thanked: 39 Times	They rewired everything twice, so I am guessing they must have checked that. But I will have them check again...thanks!
	() Thanks

12th October 2007, 16:30	#7
DerAlte Senior - BHPian Join Date: Mar 2007 Location: Bangalore Posts: 8,069 Thanked: 2,919 Times	If another HU hadn't been tried one would have suggested why don't you (or your installer) unmount the HU, connect a battery to it OUTSIDE the car and check if it does the same thing. Could have been a dry soldering problem, but this cannot happen with 2 HUs. Otherwise, connect a lamp (yes, any automotive 12V lamp) to the reset wire (I think it is a red with yellow strip or the other way around) that is coming to the HU. This signal is supposed to go ON when you turn the key to crank the engine. If the lamp goes on intermittently WITHOUT you cranking the engine, there is some locha in that wire. Another way the installer could check would be to disconnect only that wire and play the HU.
	() Thanks

12th October 2007, 22:01	#8
nirmalrshah Newbie Join Date: Oct 2007 Location: Bangalore Posts: 22 Thanked: 39 Times	They did try checking by fixing a bulb and it didnt blink! Now here is something curious I discovered today - when I start the system, I turn the volume down to 0 and then slowly (not in one go) - increase the volume one notch by one wiaitng a couple of seconds before increasing every notch - when I do this, the system does not restart! I am not sure about this - I will try to do this a couple of times and see what happens...
	() Thanks

14th October 2007, 14:18	#9
nirmalrshah Newbie Join Date: Oct 2007 Location: Bangalore Posts: 22 Thanked: 39 Times	I saw this one on JC Rd too- dealer is car jewel...
	() Thanks

15th October 2007, 01:21	#10
nirmalrshah Newbie Join Date: Oct 2007 Location: Bangalore Posts: 22 Thanked: 39 Times	the earlier post was meant for another thread sorry about that... I had a false alarm with the low volume story - that didnt work. my system still resets randomly.
	() Thanks