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Home >> Hummer >> 2009 >> H3 Base, Standard >> Repair and Diagnosis >> Electrical >> Charging Systems >> Battery, Charging System And Starting System >> Diagnostic Information and Procedures >> DTC C0899 >> Circuit/System Verification

Circuit/System Verification

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