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Discussion Starter · #1 ·
My Mondeo 2.0 zetec Mk2 2001 (Auto) is running like a bag of poop and I need help to explain what these codes mean in the real world:

P1782 P/ES Circuit Out Of Self Test Range
P1780 Transmission Control Switch circuit is out of Self-Test Range
P1633 Keep Alive Power Voltage Too Low

The code that concerns me most is the P1633, what does KAM do? is this a bad earth or loss of feed to the ECU?

Thanks for any replies.
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