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Mondeo tddi won't turn over fail code u1262 (j1850) bus communication fault b911 b912 b913 b914 b915 b916

paul hands

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Any help to figure out why it won't start would be really appreciated,worked fine the night before and now nothing,plus digital temp just comes up with lines across now ?

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Does it attempt to turn over at all?

instrument cluster faulty maybe? Would disconnecting the battery for an hour clear the codes and let it start?


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  • 2 weeks later...
  • 4 weeks later...

Can u please describe the reley position/number/color? I have exactly same problem with my mondeo mk3 2003 1.8 gasoline 81kw. Engine won't crank,not a sound. My odometer and temp display is showing normal,but after a few seconds is showing dashes -----. I already checked fuses but nothing wrong. If i manualy engage the starter relay,the engine crank,but not start. Immo led is off after turning the key. Strange one: if i disconnect the cable from the ecu/pcm, there is no change,as if the ecu isn't there. Possible ecu is dead??? Thank you

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