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Home >> Chevrolet >> 2012 >> Cruze Eco, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 138 (Engine Controls And Fuel - 2.0L - DTC P0243 To DTC P0690) >> DTC P0341-P0343 >> Circuit/System Testing >> P0342 and P0343

P0342 and P0343

WARNING: This page is about a different car, the 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the intake camshaft position sensor wire harness connector.
  2. Test for less than 1 Ω between the low reference circuit terminal B and ground.
    • If greater than the specified value, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the ECM.
  3. Ignition ON, test for 4.8-5.2 V between the 5 V reference circuit terminal A and ground.
    • If less than the specified range, test the 5 V reference circuit for an open/high resistance or short to ground. If the circuit tests normal, replace the ECM.
    • If greater than the specified range, test the 5 V reference circuit for a short to voltage. If the circuit tests normal, replace the ECM.
  4. Ignition ON, test for 4.8-5.2 V between the signal circuit terminal C and ground.
    • If less than the specified range, test the signal circuit for an open/high resistance or short to ground. If the circuit tests normal, replace the ECM.
    • If greater than the specified range, test the affected signal circuit for a short to voltage. If the circuit tests normal, replace the ECM.
  5. Ignition OFF, connect a fused jumper wire to the camshaft position signal circuit terminal C.
  6. Ignition ON, momentarily touch the other end of the fused jumper wire to a good ground. The Camshaft Position Active Counter parameter on the scan tool should increment.
    • If the intake Camshaft Position Active Counter increments, replace the camshaft position sensor.
    • If the intake Camshaft Position Active Counter does not increment, replace the ECM.
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