LEMON Manuals: Even more car manuals for everyone
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 P2670 or P2671: Actuator High Control Circuit Group 2 >> 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.
  1. Ignition On.
  2. Verify the scan tool High Side Driver 2 Command parameter displays On.
    • If On is not displayed 

      Refer to Circuit/System Testing.

    • If On is displayed 
  3. Verify the parameters listed below do not display Malfunction when commanding the high side driver 2, On and Off with a scan tool.
    • High Side Driver 2 Circuit Low Voltage Test Status
    • High Side Driver 2 Circuit Open Test Status
    • High Side Driver 2 Circuit High Voltage Test Status
    • If Malfunction is displayed 

      Refer to Circuit/System Testing.

    • If Malfunction is not displayed 
  4. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observe from the Freeze Frame/Failure Records data.
  5. Verify the DTC does not set.
    • If the DTC sets 

      Refer to Circuit/System Testing.

    • If the DTC does not set 
  6. All OK.
scientia non olet · About LEMON Manuals