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Home >> Plymouth >> 1994 >> Laser Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 13 (Cruise Control System) >> Self-Diagnostics >> Test TC-56B - Cruise Control Solenoid Circuits

Test TC-56B - Cruise Control Solenoid Circuits

WARNING: This page is about a different car, the 1994 Eagle Vision, 1994 Dodge Intrepid, 1994 Chrysler New Yorker, 1994 Chrysler LHS, and 1994 Chrysler Concorde. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Perform TEST TC-1A  before proceeding. After each repair, perform TEST SC-VER  .
NOTE: For connector terminal identification, refer to CONNECTOR IDENTIFICATION  . For wiring diagrams, see WIRING DIAGRAM  .
  1. Turn ignition switch to OFF position. Disconnect and inspect Powertrain Control Module (PCM) connector. PCM is located under air cleaner. If connector is not okay, repair connector as necessary. If connector is okay, turn ignition switch to ON position.
  2. Put cruise control ON/CRUISE/OFF switch in ON position. Put Using DRB in voltmeter mode, check voltage on PCM connector terminal No. 33 (Tan/Red wire). If voltage is more than 10 volts, go to TEST TC-56C  . If voltage is less than 10 volts, disconnect cruise control servo 4-pin connector. Inspect connector.
  3. If connector is not okay, repair connector as necessary. If connector is okay, turn ignition off. Using DRB in ohmmeter mode, check resistance of cruise control servo connector terminal No. 4 (Tan/Red wire). If resistance is less than 5 ohms, repair short to ground in Tan/Red wire.
  4. If resistance is more than 5 ohms, using an external ohmmeter, check resistance of Tan/Red wire between PCM connector terminal No. 33 and cruise control servo connector terminal No. 4.
  5. If resistance is less than 5 ohms, replace cruise control servo. If resistance is more than 5 ohms, repair open in Tan/Red wire.