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Home >> Cadillac >> 2007 >> XLR V >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 4.4L - DTC P0171 To DTC 00700 >> DTC P0351-P0358 >> Circuit/System Verification
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Circuit/System Verification

  1. Start and run the engine.
  2. With a scan tool, monitor that all eight ignition control (IC) circuit status parameters display OK.
    • If the IC circuit status parameter displays, Short to Ground/Open or Short to B+, continue with the Circuit/System Testing.
  3. Observe the Misfire Current counters using the scan tool. The counters should not be incrementing
    • If the counters are incrementing for any of the cylinders, continue with Circuit/System Testing
  4. If the vehicle passes the Circuit/System Verification Test, then operate the vehicle within the conditions for running the DTC. You may also operate the vehicle within the conditions that are captured in the Freeze Frame/Failure Records Data List.
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