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Home >> Cadillac >> 2009 >> Escalade Base, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Hybrid Engine Electrical System (Hp2)) >> Diagnostic Information and Procedures >> DTC P0563 >> Circuit/System Verification

Circuit/System Verification

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  1. Engine running, accessories OFF, measure and record the battery voltage at the 12V battery terminals. The voltage should be between 12.6 and 15.0 V.
  2. Observe the scan tool ECM Ignition 1 Signal parameter. The reading should be between 12.6 and 15.0 V.
    • If greater than the specified range, replace the ECM.
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