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P1612 Diagnostic Trouble Code Discussion for January 2006


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Trouble Ticket Help Requests for DTC P1612
Help Request Posted
2000 Volkswagen Jetta TDI 1.9L p1612 VIN: 3VWSF29M1Y
P1612: control module incorrectly coded. ... starting. Carried out basics for glow plug operation and found no power to the glow plugs. Traced this to no ground signal from the ecm to the glow plug relay, Checked continuity at the lilac/white wire ecm to relay , ok. Purchased a new ecm and installed,...
January 07, 2006