COMMUNICATION PROBLEMS BETWEEN THE ECMS

2005 Ford Focus

Tiny

Koko.121

January, 29, 2014 AT 6:41 AM

I have a 2005 ford focus at my garage. The costumer concerns are that when he turns the engine on all the lights stay lit like oil light, air bag, battery etc. All the lights on the instrument cluster plus the screen where it shows the gear keeps on flashing and doesnt show 'P'. I hooked up the scanner and I got a codes like (U0100, U0155, U0101, U0121) just wanna know if something like this happend with anyone and whats the solution thank you

FOUND 167 RELATED QUESTIONS

1 Answer

Tiny

hmac300

January, 29, 2014 AT 7:00 AM

Check battery including load test, a bad battery will give false codes. Or dirty battery cables.

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