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P0637 Diagnostic Trouble Code Discussion for August 2007

Steering Assist Solenoid Control Circuit High Input

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Trouble Ticket Help Requests for DTC P0637
Help Request Posted
2000 Saturn SW2 1.9L Poor Idle Quality, Stall VIN: 1G8ZN827XY
P0637: Steering Assist Solenoid Control Circuit High Input. ... stall when slowing down and coming to a stop. No CEC light was on, but found P0637 & P1599 in memory. During road test: Driving at about 15-20 MPH then applying brake coasting to a stop vehicle RPM would drop to about 20...
August 27, 2007