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Home >> Cadillac >> 2010 >> STS 3.6 V, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 18 (Engine Controls And Fuel - 4.6L (LH2) - DTC P0335 To DTC P2544) >> DTC P0341, P0346, P0366, or P0391 >> Circuit/System Verification

Circuit/System Verification

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  1. Ignition OFF, inspect the engine wiring harness carrying the CMP sensor circuits for the following conditions:
    • 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.
  2. Observe that 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
  3. 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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