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Home >> Chevrolet >> 2006 >> Cobalt LTZ >> Repair and Diagnosis >> External Pages >> Different car >> Section 793 (Engine Controls And Fuel - 2.0L - DTC P0243 To DTC P0700) >> DTC P0366, P0367, or P0368 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2008 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
  1. With the ignition OFF, inspect the engine wiring harnesses 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. Ignition ON, engine OFF, observe the CMP active counter parameter. The CMP active counter should be at 0.
  3. Start and run the engine the CMP active counter should increment to 255.
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