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Home >> Cadillac >> 2021 >> XT5 Sport >> Repair and Diagnosis >> External Pages >> Different car >> Section 633 (Automatic Transmission - 9T60 (M3G) Or 9T65 (M3W) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0815, P0816, or P0826 >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2021 Cadillac XT6. However, it is still accessible from the selected car via links, so may be relevant.
  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. Test for infinite resistance between the test points: Signal terminal 1 & Signal terminal 2
    • If less than infinite resistance - Replace the component:  S2R Transmission Manual Shift Switch - Right
    • Go to next step: If infinite resistance 
  5. Press and hold the switch: S2R Transmission Manual Shift Switch - Right
  6. 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 
  7. Disconnect the electrical connector: S2L Transmission Manual Shift Switch - Left
  8. Test for 5300 to 5600 ohms between the test points: Signal terminal 2 & Ground terminal 1
    • If not between 5300 and 5600 ohms 

      Replace the component: S2L Transmission Manual Shift Switch - Left

    • Go to next step: If between 5300 and 5600 ohms 
  9. Press and hold the switch: S2L Transmission Manual Shift Switch - Left
  10. 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 
  11. All OK.