Anna MRB Posted March 28 Share Posted March 28 Recently had steering rack replaced in my 2011 ford grand c-max diesel. Immediately after engine warning light came on. Mechanic spent many hours tracking down an electrical fault. A week later the entire dash blanked out as driving and all controls dropped to zero eg speedo, fuel gauge. At same time indicators stopped working and electric windows. After several minutes all came back on with warning about failed immobiliser and brake fluid. The couple of minutes later controls all died again. This cycle just keeps continuing. Mechanically car seems fine. Please help. Quote Link to comment Share on other sites More sharing options...
unofix Posted March 28 Share Posted March 28 This could very well just be the common dry solder joints of the instrument cluster failing. An easy repair for about £85 @rd457 can possibly help. You really should use FORScan and a vLinker FS cable to read all of the DTC's Also you should check the battery State Of Charge 1 hour after it's parked. Quote Link to comment Share on other sites More sharing options...
iantt Posted March 28 Share Posted March 28 28 minutes ago, unofix said: This could very well just be the common dry solder joints of the instrument cluster failing. An easy repair for about £85 @rd457 can possibly help. You really should use FORScan and a vLinker FS cable to read all of the DTC's Also you should check the battery State Of Charge 1 hour after it's parked. Wouldn't have thought dry solder joints on 2011 grand c max. That's the era of MK3 focus . Maybe body control module water ingress ? Or maybe a bad earth point near the steering rack disturbed. Quote Link to comment Share on other sites More sharing options...
unofix Posted March 28 Share Posted March 28 22 minutes ago, iantt said: maybe a bad earth point near the steering rack disturbed. Yes, that's a good point. Quote Link to comment Share on other sites More sharing options...
rd457 Posted March 29 Share Posted March 29 Yeah apparently (checking wikipedia) the 'grand' variant was introduced with the 2nd gen models, starting in 2011, so I'd expect it's IC model wouldn't be one affected by the cracked joint problem. Quote Link to comment Share on other sites More sharing options...
RL123 Posted March 29 Share Posted March 29 You could try hitting the dash above the instrument cluster and see if the cluster reacts. Just a thought , I know it did on my son’s mk2.5 Focus , worth a try? Quote Link to comment Share on other sites More sharing options...
DaveT70 Posted March 29 Share Posted March 29 Could be BCM but it's probably more damaged wiring somewhere Quote Link to comment Share on other sites More sharing options...
Anna MRB Posted March 29 Author Share Posted March 29 Thank you for all the advice. Me and my partner have no knowledge of cars. Is this something we would need to contact a ford dealer about? My usual mechanics seem unsure about it all. Quote Link to comment Share on other sites More sharing options...
Anna MRB Posted March 29 Author Share Posted March 29 Mechanic plugged some diagnostic screen in and said it was showing loss of connection in multiple places? Quote Link to comment Share on other sites More sharing options...
unofix Posted March 29 Share Posted March 29 4 hours ago, Anna MRB said: . Is this something we would need to contact a ford dealer about? Most probably, or you need a good auto-electrician. What you don't need is a mechanic !! The diagnostic trouble codes (DTC's) need to be read using FORScan or Fords own equipment. Your mechanic is very probably using a generic brand code reader which don't read all of the Ford specific DTC's. Quote Link to comment Share on other sites More sharing options...
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