986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Transmission shifter solenoid circuit malfunction

PJ1 · 10-04-2012, 11:36 AM

My 2004 986 is showing the "Check Engine Light" and a rocking, rotating display light on the dash runs back and forth between high and low gears. This is an automatic transmission. An engine sensor read out says "Transmission shifter solenoid circuit malfunction". I cannot find anything on line about repairing this. Does anyone have a clue please?

Water pump went out and we replaced it and the thermostat. We are thinking possibly the water pump blew coolant into the shifting mechanism causing the solenoid issue.

10-04-2012, 11:36 AM	#1
PJ1 Randy Join Date: Jul 2012 Location: Weaverville, NC Posts: 4	Transmission shifter solenoid circuit malfunction? My 2004 986 is showing the "Check Engine Light" and a rocking, rotating display light on the dash runs back and forth between high and low gears. This is an automatic transmission. An engine sensor read out says "Transmission shifter solenoid circuit malfunction". I cannot find anything on line about repairing this. Does anyone have a clue please? Water pump went out and we replaced it and the thermostat. We are thinking possibly the water pump blew coolant into the shifting mechanism causing the solenoid issue. Last edited by PJ1; 10-07-2012 at 07:54 AM.