vz radio
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- Aug 4, 2014
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- Western Australia
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- VZ Ute
Hi all,
I have searched the forum but no luck so I am hoping you experienced members can assist and thank you in advance...
My buddy has a 2005 VZ Commodore with a factory stereo installed. He assisted someone with a jump start but had the cables reversed briefly (not sure if it was his car that had reversed cables or the other car - probably doesn't matter anyway). Since the successful jump start, the radio won't power up. I am planning on having a look at it this week, but wanted to research it prior to speed things up. From the forum I have gathered the following possible troubleshooting tips :
1- Check Radio, Accessory, Cigarette Lighter fuses in the fuse box under the steering column - Are there other fuses in this fuse box that need checking? Is this where the fusebox is in the VZ? Are there any fuseable links / relays / main fuses prior to this fusebox that feed these in the engine bay or elsewhere in the vehicle?
2- Check the stereo unit itself to see if it is loose and not grounding or sitting in the connectors properly
3- Is there a function on the cluster unit that allows you to turn on/off the radio in the odometer screen like some other models?
4- Remove the actual unit and check the 10amp mini-fuse next to the connector on the rear (is there a fuse on the factory head unit??)
5- Last ditch effort - open the unit and check for a blown diode near the power input due to the reversed polarity of power? (Anyone ever done that? Is the first diode near the main power input on the PCB?)
Any other possibilties? I guess similar to other cars the radio needs a constant 12v positive source to keep memory. Is this taken from the fuse box? If this is blown does the entire stereo not turn on? Any other possible power feeds or sources need checking (preferably before removing the head unit)?
Thanks again everyone in advance as I don't have one of these cars myself I can't pre-check these things prior to seeing the problem unit in person.
I have searched the forum but no luck so I am hoping you experienced members can assist and thank you in advance...
My buddy has a 2005 VZ Commodore with a factory stereo installed. He assisted someone with a jump start but had the cables reversed briefly (not sure if it was his car that had reversed cables or the other car - probably doesn't matter anyway). Since the successful jump start, the radio won't power up. I am planning on having a look at it this week, but wanted to research it prior to speed things up. From the forum I have gathered the following possible troubleshooting tips :
1- Check Radio, Accessory, Cigarette Lighter fuses in the fuse box under the steering column - Are there other fuses in this fuse box that need checking? Is this where the fusebox is in the VZ? Are there any fuseable links / relays / main fuses prior to this fusebox that feed these in the engine bay or elsewhere in the vehicle?
2- Check the stereo unit itself to see if it is loose and not grounding or sitting in the connectors properly
3- Is there a function on the cluster unit that allows you to turn on/off the radio in the odometer screen like some other models?
4- Remove the actual unit and check the 10amp mini-fuse next to the connector on the rear (is there a fuse on the factory head unit??)
5- Last ditch effort - open the unit and check for a blown diode near the power input due to the reversed polarity of power? (Anyone ever done that? Is the first diode near the main power input on the PCB?)
Any other possibilties? I guess similar to other cars the radio needs a constant 12v positive source to keep memory. Is this taken from the fuse box? If this is blown does the entire stereo not turn on? Any other possible power feeds or sources need checking (preferably before removing the head unit)?
Thanks again everyone in advance as I don't have one of these cars myself I can't pre-check these things prior to seeing the problem unit in person.
