P0759

P0759 is the intermittent version of the shift solenoid B electrical fault — the TCM saw the circuit fault appear and then disappear, usually thermal- or vibration-related. Cheapest-first ladder: clear the code and drive the vehicle through a full thermal cycle while monitoring the solenoid command and feedback on the scan tool; wiggle-test the internal pass-through connector and external case connector with the engine running at idle in drive; check solenoid resistance both cold and hot — many failing solenoid windings only open when the copper is at full operating temperature; inspect the case connector pins for green corrosion or oil-soaked seal. Caveat: an intermittent code that only sets in hot weather or after extended highway driving is a thermal failure of either the solenoid winding or a marginal harness connection.

Vehicle-specific patterns: 1996-2002 GM trucks with the 4L60E set P0759 from intermittent case connector D corrosion that conducts when cold and opens when hot. 2003-2008 Honda Accord and Pilot with the 5-speed transmission set P0759 from intermittent shift solenoid B failure that is part of the broader judder TSB and clutch pressure switch service campaign. 2005-2010 Chrysler 300C with the W5A580 (NAG1) set P0759 from intermittent conductor plate failure inside the valve body. 2007-2013 BMW X5 with the ZF 6HP26 set P0759 from intermittent mechatronic solenoid failure that worsens with fluid age. Estimated repair: $250 to $1,800.