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Home >> GMC >> 2017 >> Acadia SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 197 (Automatic Transmission - 8L45 (M5N M5T) Or 8L90 (M5U) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P1765-P1767: Upshift/Downshift Switch >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform the Circuit/System Testing first.
  2. Test for infinite resistance between terminal 1 and terminal 2 on the S2R Transmission Manual Shift Switch - Right.
    • If not infinite resistance 

      Replace the S2R Transmission Manual Shift Switch - Right.

    • If infinite resistance 
  3. Test for 500-700 Ω between terminal 1 and terminal 2 on the S2R Transmission Manual Shift Switch - Right, while depressing the switch.
    • If not within the specified range 

      Replace the S2R Transmission Manual Shift Switch - Right.

    • If within the specified range 
  4. Test for 500-700 Ω between terminal 1 and terminal 3 on the S2R Transmission Manual Shift Switch - Right.
    • If not within the specified range 

      Replace the S2R Transmission Manual Shift Switch - Right.

    • If within the specified range 
  5. Test for 5400-5700 Ω between terminal 1 and terminal 2 on the S2L Transmission Manual Shift - Left.
    • If not within the specified range 

      Replace the S2L Transmission Manual Shift Switch - Left.

    • If within the specified range 
  6. Test for 1200-1500 Ω between terminal 1 and terminal 2 on the S2L Transmission Manual Switch - Left with the switch depressed.
    • If not within the specified range 

      Replace the S2L Transmission Manual Shift Switch - Left.

    • If within the specified range 
  7. Replace the K9 Body Control Module.