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Home >> Plymouth >> 1997 >> Voyager Base, 3.0 3 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 3.3L >> Trouble Code Tests >> Test TC-114A - Park/Neutral Switch Failure
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Test TC-114A - Park/Neutral Switch Failure

NOTE: For connector terminal ID, see the CONNECTOR IDENTIFICATION DIRECTORY. For wiring diagram, see WIRING DIAGRAMS - 3.3L article.
NOTE: Park/neutral switch is used on 3-speed models and transmission range sensor is used on 4-speed models. Transmission range sensor may be referred to as park/neutral switch.
  1. Apply parking brake. Using scan tool, read park/neutral switch state while moving shift lever from Park to Reverse.
  2. If scan tool displays P/N and D/R, go to next step. If scan tool does not display P/N and D/R, go to step 6).
  3. Conditions required to set DTC are not present at this time. The DTC may be stored in Powertrain Control Module (PCM) when PCM detects incorrect park/neutral switch state for a given mode of vehicle operation. Possible causes are: defective connector terminals or wiring, defective park/neutral switch, transaxle internal problem or defective PCM.
  4. Check for defective wiring or connections at PCM and park/neutral switch (3-speed) or transmission range sensor (4-speed) located on side of transaxle. See Fig 1 and Fig 2. The PCM is located between driver's side front fender and power distribution center, near battery.
    Fig 1: Locating Park/Neutral Switch (3-Speed Models)
    G95H35060
    Fig 2: Locating Transmission Range Sensor (4-Speed Models)
    G96B29042
  5. If defective wiring or connections exist, repair as necessary. Perform TEST VER-2A. If no defective wiring or connections exist, see INACTIVE TROUBLE CODE CONDITION. Perform TEST VER-2A.
  6. Ensure ignition is off. Place shift lever in Park. Disconnect connectors from Powertrain Control Module (PCM). The PCM is located between driver's side front fender and power distribution center, near battery.
  7. Using ohmmeter, check resistance between ground and PCM connector terminal No. 76 (Black/White wire) while moving shift lever from Park to Reverse. If resistance changes from less than 5 ohms to more than 5 ohms, replace PCM. Perform TEST VER-2A. If resistance does not change from less than 5 ohms to more than 5 ohms, go to next step.
  8. If resistance does not remain less than 5 ohms at all times, go to next step. If resistance remains less than 5 ohms at all times, repair short to ground in Black/White wire between PCM and park/neutral switch (3-speed) or transmission range sensor (4-speed). Perform TEST VER-2A. Park/neutral switch (3-seed) or transmission range sensor (4-speed) are located on transaxle. See Fig 1 and Fig 2.
  9. Disconnect connector at park/neutral switch (3-seed) or transmission range sensor (4-speed) on transaxle. See Fig 1 and Fig 2.
  10. Using ohmmeter, check resistance between Black/White wire on connector for park/neutral switch (3-speed) or transmission range sensor (4-speed) and PCM connector terminal No. 76 (Black/White wire). If resistance is less than 5 ohms, replace park/neutral switch (3-speed) or transmission range sensor (4-speed). Perform TEST VER-2A. If resistance is 5 ohms or more, repair open circuit in Black/White wire between PCM and park/neutral switch (3-speed) or transmission range sensor (4-speed). Perform TEST VER-2A.
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