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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1701 (Engine Controls And Fuel - 3.6L (Ly7) - DTC P025A/P0300 To DTC P0700) >> DTC P0341, P0346, P0366, or P0391 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
  1. If DTC P0340, P0345, P0365, or P0390 are also set, diagnose them first
  2. With the ignition OFF, inspect the engine wiring harnesses carrying the CMP sensor circuits for the following conditions:
    • Close routing of secondary ignition components
    • Close routing of aftermarket electrical equipment
    • Close to solenoids, motors, and relays
    • Correct any wire harness routing or component placement conditions if it is determined to be a possible source of electrical interference.
  3. Observe the following parameters are all incrementing:
    • Exhaust CMP Bank 1 Active
    • Intake CMP Bank 1 Active
    • Exhaust CMP Bank 2 Active
    • Intake CMP Bank 2 Active
  4. 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.
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