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A/T Interlock System - Park Pin Switch Test

  1. Connect the HDS to the DLC (A).
  1. Check the Park Pin Switch signal with the HDS in the A/T data list while the shift lever is in P, and when the shift lever is shifted to any position other than P.
    NOTE: If the HDS does not communicate with the PCM, troubleshoot the DLC circuit.
  1. Check that the park pin switch signal is OFF while the shift lever is in P, and signal is ON when the shift lever is shifted out of P.
  1. If the park pin switch signal is OK, test is complete, disconnect the HDS. If the signal is incorrect, go to Step 5 .
  1. Turn the ignition switch to LOCK (0).

  1. Remove the shift lock solenoid/park pin switch/A/T gear position indicator panel light connector from the shift lever bracket base, then disconnect the connector.
  1. Shift into P, and check for continuity between shift lock solenoid/park pin switch/A/T gear position indicator panel light connector terminals No. 4 and No. 5. Do not press the shift lever button. There should be no continuity.
  1. Shift out of P, and check for continuity between connector terminals No. 4 and No. 5. There should be continuity.
  1. If the park pin switch tests OK, repair open or short in the wire between the shift lock solenoid/park pin switch/A/T gear position indicator panel light connector terminal No. 4 and the MICU.
  1. If the park pin switch tests incorrectly, test the park pin switch at the park pin switch 2P connector.

  1. Disconnect the park pin switch 2P connector, and remove it from the bracket base.
  1. Shift into P, and check for continuity between park pin switch 2P connector terminals No. 1 and No. 2. Do not press the shift lever button. There should be no continuity.
  1. Shift out of P, and check for continuity between connector terminals No. 1 and No. 2. There should be continuity.
  1. If the park pin switch tests OK at the 2P connector, there is a break or short in the wire between shift lock solenoid/park pin switch/A/T gear position indicator panel light connector and the 2P connector. Replace the shift lock solenoid; the shift lock solenoid is combined with the park pin switch harness and the indicator panel light harness/socket, and supplied as an assembly.
  1. If the park pin switch fails the test, replace the park pin switch.