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P1557 Diagnostic Trouble Code Discussion for March 2009

Battery Module Temperature Sensor Signal 3 Circuit Low Voltage

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Trouble Ticket Help Requests for DTC P1557
Help Request Posted
2001 Volkswagen Jetta GLS 1.8L MIL Lamp on VIN: 3VWSC29M61
P1557: 17965 Turbo overboost condition control limit exceeded. ... code. It shows up first, quickly followed by the P1557 code. I checked for TSB's and read the archives. The relay, fuse and changeover valve are good. I smoke tested for vacuum leaks and found none. I relaced the vacuum hos...
March 23, 2009