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Home › Chevrolet › 2011 › Caprice › Repair and Diagnosis › Engine Performance › System › Engine Controls And Fuel - 6.0L - DTC Diagnostics And Troubleshooting › Diagnostic Information and Procedures › DTC P0496 › Circuit/System Verification

Circuit/System Verification

  1. Ignition ON, engine OFF, seal the EVAP system using the Purge/Seal function with a scan tool.
  2. Start the engine.
  3. Observe the FTP sensor with a scan tool. The FTP sensor parameter should be less than 1.7 V after 90 s.
    • If the FTP sensor parameter is greater than the specified range, go to Circuit/System Testing.
  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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