PCM Changeout
02-16-2019, 10:33 AM
#1
PCM Changeout
Prior to me buying my 2005 Cayenne the PCM failed and was replaced by the previous owner with a used one that was working now when you turn it on there is an error warning on the screen about the amplifier, does something need to be programmed into the car because of the replacement PCM or is it another known problem?
02-17-2019, 12:20 PM
#2
Rennlist Member
How old is your battery? If my battery got too low the PCM would give the amplifier message on the PCM and not play sound. I've since replaced my PCM with an Android head unit.
But if the battery is new/fully charged and it still does it, then it could be a problem with the MOST fiber optic ring or one of the devices on the ring: Amp, CDC, NAV, phone, etc. Could be as simple as a blown fuse or loose connection, or could be a failed device.
But if the battery is new/fully charged and it still does it, then it could be a problem with the MOST fiber optic ring or one of the devices on the ring: Amp, CDC, NAV, phone, etc. Could be as simple as a blown fuse or loose connection, or could be a failed device.
02-17-2019, 01:41 PM
#3
Intermediate
Amplifier warning multi CD player not working
I recently bought a cayenne Turbo radio not working said amplifier fault no multi player cd working Looked at some you tubes about removing pcm.
Took mine out. Noticed a small blue plug with 1 wire not connected.
Looked back at yiu you tube videos realised where the plug went as I saw it on the pcm that had been removed. Dare to say I connected it and woohooo a perfect working pcm no faults also my multi CD player started working result!
By the look of it who ever had it before me had an aftermarket head unit in there.
Took mine out. Noticed a small blue plug with 1 wire not connected.
Looked back at yiu you tube videos realised where the plug went as I saw it on the pcm that had been removed. Dare to say I connected it and woohooo a perfect working pcm no faults also my multi CD player started working result!
By the look of it who ever had it before me had an aftermarket head unit in there.
02-18-2019, 11:51 AM
#4
How old is your battery? If my battery got too low the PCM would give the amplifier message on the PCM and not play sound. I've since replaced my PCM with an Android head unit.
But if the battery is new/fully charged and it still does it, then it could be a problem with the MOST fiber optic ring or one of the devices on the ring: Amp, CDC, NAV, phone, etc. Could be as simple as a blown fuse or loose connection, or could be a failed device.
But if the battery is new/fully charged and it still does it, then it could be a problem with the MOST fiber optic ring or one of the devices on the ring: Amp, CDC, NAV, phone, etc. Could be as simple as a blown fuse or loose connection, or could be a failed device.
02-18-2019, 11:53 AM
#5
I recently bought a cayenne Turbo radio not working said amplifier fault no multi player cd working Looked at some you tubes about removing pcm.
Took mine out. Noticed a small blue plug with 1 wire not connected.
Looked back at yiu you tube videos realised where the plug went as I saw it on the pcm that had been removed. Dare to say I connected it and woohooo a perfect working pcm no faults also my multi CD player started working result!
By the look of it who ever had it before me had an aftermarket head unit in there.
Took mine out. Noticed a small blue plug with 1 wire not connected.
Looked back at yiu you tube videos realised where the plug went as I saw it on the pcm that had been removed. Dare to say I connected it and woohooo a perfect working pcm no faults also my multi CD player started working result!
By the look of it who ever had it before me had an aftermarket head unit in there.