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Home >> Pontiac >> 2010 >> Solstice Base, 2D Convertible, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine Controls And Fuel - 2.0L - DTC P0243 To DTC P0690) >> DTC P0335, P0336, or P0338 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different variant/trim than selected.
  1. Ignition OFF, disconnect the harness connector at the crankshaft position sensor.
  2. Ignition OFF, test for less than 1 Ω between the low reference circuit terminal 2 and ground.
    • If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the ECM.
  3. Ignition ON, engine OFF, test for 4.8-5.2 V between the 5 V reference circuit terminal 1 and ground.
    • If less than the specified range, test the 5 V reference circuit for a short to ground or an open/high resistance. 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, engine OFF, test for 4.8-5.2 V between the signal circuit terminal 3 and ground.
    • If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the ECM.
    • If greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the ECM.
  5. Ignition OFF, connect a fused jumper wire to signal circuit terminal 3.
  6. Ignition ON, momentarily touch the other end of the fused jumper wire to the battery negative post/negative battery cable junction block repeatedly. The Crankshaft Position Active Counter and the camshaft position sensor parameter should change.
    • If the Crankshaft Position Active Counter and the camshaft position sensor parameter change, test or replace the crankshaft position sensor.
    • If the Crankshaft Position Active Counter and the camshaft position sensor parameter does not change, replace the ECM.
  7. Ignition OFF, inspect the crankshaft position sensor for correct installation.
    • If the sensor is loose, inspect the sensor and the O-ring for damage. Replace as necessary.
  8. Inspect the engine for the following conditions:
    • Engine oil for debris
    • Crankshaft reluctor wheel for damage
    • Timing chain, tensioner, and sprockets for wear or damage
  9. If all circuits and components test normal, test or replace the crankshaft position sensor.
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