Magenta Posted September 1, 2013 Share Posted September 1, 2013 After Halfords had changed the waterpump on my Mondeo, the 'engine management light' came on and despite being back twice, Halfords are unable to clear it. They say there are actually no faults but the 'Generic Electronic Module' (GEM) needs to be reset which can only be done by a Ford garage. Surely there must be other garages in the trade that can do this without paying franchise charges ? I suspect also, that there may be a 'backdoor' way of doing this without specialist equipment. Does anyone out there now about this ? Halfords gave me this list of fault codes which are currently present which clearly are false as there is no fault with the car: B1335 Passenger door circuit B1335 RR door ajar B1571 LR door ajar U2644 Unknown fault U3552 Unknown fault C3396 Unknown fault P1198 Pump rotor control under fueling C3500 Unknown P0012 Intake camshaft position timing over retarded How changing the water pump caused all these faults is quite an achievement ! They must have disturbed something in the process. Can anyone help or do I have to go to Ford ? Alan Quote Link to comment Share on other sites More sharing options...
stooge75 Posted September 1, 2013 Share Posted September 1, 2013 i'd say theyve mucked something up also. Forscan can tinker with GEM i think nowadays.look it up.you'll need a cable though. cant remember which one as i have so many Quote Link to comment Share on other sites More sharing options...
jeebowhite Posted September 2, 2013 Share Posted September 2, 2013 I tend to use the F-Super cable with the Ford Scan software. but it tends to be read only. Quote Link to comment Share on other sites More sharing options...
Magenta Posted September 2, 2013 Author Share Posted September 2, 2013 Thanks for those comments chaps. Looks like I'll be going to my local Ford garage who have been very polite and helpful in the past but haven't impressed me with their abilities (or charges) ! Quote Link to comment Share on other sites More sharing options...
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