LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 89 (Engine Controls And Fuel - 3.6L (LF4 LGX) - DTC P0121 LF4 To DTC P0685 LF4) >> Diagnostic Information and Procedures >> DTC P0340, P0341, P0345, P0346, P0365, P0366, P0390, or P0391: Camshaft Position Sensor >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2016 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify DTC P0641 or P0651 is not set.
    • If none of the DTCs are set 
  3. Engine running.
  4. Verify the scan tool parameters listed below increment:
    • Exhaust Camshaft Position Active Counter Bank 1
    • Exhaust Camshaft Position Active Counter Bank 2
    • Intake Camshaft Position Active Counter Bank 1
    • Intake Camshaft Position Active Counter Bank 2
    • If any counter does not increment 

      Refer to Circuit/System Testing.

    • If all counters increment 
  5. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
  6. Verify the DTC does not set.
    • If the DTC sets 

      Refer to Circuit/System Testing.

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