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P1574 Diagnostic Trouble Code Discussion for June 2006

Stop Lamp Switch Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1574
Help Request Posted
2003 Cadillac DeVille 4.6L Poor Idle Quality, Misfire VIN: 1G6KD54Y43
P1574: Stop Lamp Switch Circuit Malfunction. ... codes p0171,p0174,p0300,p1574 present. replaced spark plugs and boots, bg induction. car idled great. test drive recreated miss. no codes stored, miss fired over 300 times in a short time. every cylinder miss fire has a differant count ranging from 48 to 3...
June 12, 2006