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P1633 Diagnostic Trouble Code Discussion for July 2012

TCM Internal - Test External Watchdog Performance

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Trouble Ticket Help Requests for DTC P1633
Help Request Posted
2003 Ford Windstar SE 3.8L Poor Idle Quality, Cuts out, Stall VIN: 2FMZA52483
P1633: KAM Low Voltage. ... Had this Van In For Multiple Repairs that are listed. Trying To Figure Out If There Is A PCM Update For Idle Strategy For This Windstar. The Van Stalls At Idlle. (More When AC Is On) We Replaced Idle Air Control Valve 3 Different Ones. Still Having The Sam...
July 31, 2012