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Home >> Porsche >> 2015 >> 911 Targa 4S, Automatic DCT Trans >> Repair and Diagnosis >> General Information >> DTC Index -- 911 >> DTC P1660: Coolant Switch-Over Valve Driver For Engine >> Possible fault causes

Possible fault causes

Short circuit to B+/ground/between lines or open circuit in the lines
Engine coolant switchover valve faulty

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