hello can anyone please help me i have a 2005 ford focus and it has now developed a engine system fault on the dashboard.
it shows up no errors on diagnostic
it stops the engine from starting and sometimes after a while eventually the starter motor will click but is fine when the fault is not there.
i have tested my battery it has 12 volts and 14.4 when running
sometimes when the fault is up it will not turn over as though your battery is flat but i checked voltage and it was 12 volts so this is fine.
the only way i can get it to start is to bump it but this is pot luck as sometimes you have to turn the key on and off many times as it acts as though the immobilizer is on but then eventually bumps
also everynow and then but more times than before i get pats code 13 come up and when i have engine systems fault i get 12 come up also
i have booked it into ford to look at it as im totally lost and i do not want to buy a new battery or starter motor until i know it could be this.
i have also checked fuses and swapped relays
this fault was once just a monthly thing but is now turning into a daily more than once problem