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P1477 Diagnostic Trouble Code Discussion for December 2004

Medium Fan Control Primary Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1477
Help Request Posted
2000 BMW 528i 2.8L MIL Lamp on VIN: WBADM6348Y
P1477: Leakage diagnostic pump reed switch did not open. ... this 2000 528i. It came in with codes P1250 and P1477. We cleared the codes and drove the vehicle several times. The P1250 never returned and we were unable to find a description for this code. P1477 (leakage diagnostic pump reed switch did not open) did r...
December 13, 2004