jossw94 Posted September 2, 2019 Share Posted September 2, 2019 Hello I'm wondering if anyone can help me as I'm not a technical person. I've got a 1.6L '61 plate ford focus. I had a car accident. Was listening to the stereo whilst waiting to be recovered. The car was sent in. Fixed the initial problem but my stereo/sat nav will not turn on. All fuses are okay. All electronics around the satnav work e.g. air con. Does anyone know what is could be or what I should do? Quote Link to comment Share on other sites More sharing options...
KevG Posted September 2, 2019 Share Posted September 2, 2019 Does your sat nav look like this? Quote Link to comment Share on other sites More sharing options...
KevG Posted September 2, 2019 Share Posted September 2, 2019 If your satnav look like the above unit then you may have one of the early units fitted that have problems. If it isn't powering on then I gather it is the 1st time that the battery has been disconnected?, the early units suffered from internal memory chips that got corrupted, so the unit fails to power up although it still pulls ~200mA in current, and will almost certainly flatten the battery if left over time. Post your serial number up should look something like this:- 8M5T-18K931-AE 1 Quote Link to comment Share on other sites More sharing options...
johnH Posted September 2, 2019 Share Posted September 2, 2019 I know you said you've checked all fuses but have you also checked the one on the rear of the Headunit? I know some have one there as a secondary protection. 1 Quote Link to comment Share on other sites More sharing options...
marekb Posted March 9, 2020 Share Posted March 9, 2020 I have same radio and it won't power on at all. I checked fuse and it's OK. Which internal chip you're referring to? Thanks. Quote Link to comment Share on other sites More sharing options...
StephenFord Posted March 9, 2020 Share Posted March 9, 2020 18 minutes ago, marekb said: I have same radio and it won't power on at all. I checked fuse and it's OK. This is for illustrative purposes only, it's an old headunit that caught me out once as I never realised it had an 'internal' fuse which had blown, in addition to an inline one which was fine! Quote Link to comment Share on other sites More sharing options...
marekb Posted March 9, 2020 Share Posted March 9, 2020 OK because I read something about wrong RAM : http://forum.gsmhosting.com/vbb/f179/ford-8m5t-radio-dead-1568595/ My unit looks bit different but I'll check if it have some internal fuse. Maybe someone can share connector description? Thanks Quote Link to comment Share on other sites More sharing options...
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