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Home >> Cadillac >> 2019 >> ATS V >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 8L45 (M5N M5T) Or 8L90 (M5U) - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC P1765-P1767 >> Component Testing

Component Testing

  1. Ignition/Vehicle - Off
  2. Disconnect the electrical connector: S2R Transmission Manual Shift Switch - Right
  3. Test for 575 to 700 ohms between the test points: Signal Terminal 1 & Signal Terminal 3
    • If not between 575 and 700 ohms 

      Replace the component: S2R Transmission Manual Shift Switch - Right

    • Go to next step: If between 575 and 700 ohms 
  4. Operate the component: S2R Transmission Manual Shift Switch - Right
  5. Test for 575 to 700 ohms between the test points: Signal Terminal 1 & Ground Terminal 2
    • If not between 575 and 700 ohms 

      Replace the component: S2R Transmission Manual Shift Switch - Right

    • Go to next step: If between 575 and 700 ohms 
  6. Operate the component: S2L Transmission Manual Shift Switch - Left
  7. Test for 1200 to 1500 ohms between the test points: Signal Terminal 2 & Ground Terminal 1
    • If not between 1200 and 1500 ohms 

      Replace the component: S2L Transmission Manual Shift Switch - Left

    • Go to next step: If between 1200 and 1500 ohms 
  8. Test for 6400 to 6700 ohms between the test points: Signal Terminal 2 & Ground Terminal 1
    • If not between 6400 and 6700 ohms 

      Replace the component: S2L Transmission Manual Shift Switch - Left

    • Go to next step: If between 6400 and 6700 ohms 
  9. All OK.
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