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Home >> Cadillac >> 2007 >> Escalade ESV >> Repair and Diagnosis >> External Pages >> Different car >> Section 1441 (Engine Controls And Fuel - Hybrid (Hp2) 6.0L (LFA) - Troubleshooting & Diagnosis) >> Electronic Ignition System Diagnosis >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, open the hood to disable the Auto-Stop function. Refer to Hybrid Modes of Operation Description .
  2. Ignition ON, verify the scan tool hood position parameter displays Open.
  3. Observe the Engine Controls Schematic for the ignition module/coils, and review the Ignition System Specifications to verify the following concerns:
    • The ignition modules/coils are correctly wired and connected
    • The proper spark plug type
    • The proper spark plug gap and torque
    • The proper ohm values for the spark plug wires

      Refer to Ignition System Specifications .

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