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Home >> Cadillac >> 2017 >> CTS V >> Repair and Diagnosis >> External Pages >> Different car >> Section 237 (Automatic Transmission - 8L45 (M5N) Or 8L90 (M5U) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P1761: Up and Down Shift Switch Signal Message Counter >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2016 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • P1761 is an informational DTC.
  • Diagnose all other K71 Transmission Control Module and K9 Body Control Module DTCs prior to DTC P1761.
  1. Verify with a scan tool, there are no other K71 Transmission Control Module or K9 Body Control Module DTCs set.
    • If a DTC is not set 
  2. Complete the diagnosis by looking for a serial data fault. Refer to Scan Tool Does Not Communicate With Low Speed GMLAN Device
    • If a serial data circuit fault is found 

      Repair as necessary.

    • If a serial data circuit fault is not found 
  3. All OK.
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