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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 C0899 or C12E1 >> Circuit/System Verification

Circuit/System Verification

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  1. Engine running, accessories OFF, measure and record the battery voltage at the 12 V battery terminals. The voltage should be between 12.6-15.0 V.
  2. Observe the scan tool EBCM Battery Voltage Signal parameter. The reading should be between 12.6-15.0 Volts.
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