Test TC-86B - Speed Control Switch Always High

WARNING: This page is about a different car, the 1996 Eagle Vision, 1996 Dodge Intrepid, 1996 Chrysler New Yorker, 1996 Chrysler LHS, and 1996 Chrysler Concorde. However, it is still accessible from the selected car via links, so may be relevant.

Condition to set trouble code is not present at this time. SPEED CONTROL SWITCH ALWAYS HIGH DTC sets if an open condition is detected in speed control ON/OFF switch circuit. Possible causes are: multiplexing switch(es) (speed control switches) shorted to power, multiplexing switch(es) (speed control switches) open, ON/OFF switch open or Powertrain Control Module (PCM) failure.
Observe scan tool voltmeter. Wiggle wiring harness between speed control ON/OFF switch and Powertrain Control Module (PCM). If voltage varies, repair wiring harness as necessary where wiggling caused problem to appear. Perform TEST VSS-VER . If voltage did not vary, problem is not present at this time. Perform TEST SC-VER .