Test SC-5A - Checking Speed Control Denied Messages: P/N
WARNING: This page is about a different car, the 1995 Plymouth Voyager, 1995 Plymouth Grand Voyager, 1995 Dodge Grand Caravan, 1995 Dodge Caravan, and 1995 Chrysler Town & Country. However, it is still accessible from the selected car via links, so may be relevant.
Park/Neutral position switch sense circuit is grounded indicating to PCM that transmission is not in gear. P/N position switch sense circuit of PCM connector terminal No. 30 is grounded through P/N position switch when transmission is in Park or Neutral.