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Home >> Chevrolet >> 2008 >> Impala SS >> Repair and Diagnosis >> Electrical >> Charging Systems >> Battery, Charging System And Starting System >> Diagnostic Information and Procedures >> DTC C0899 >> Circuit/System Verification
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Circuit/System Verification

  1. Ignition OFF, measure the voltage at the battery terminals.
  2. Ignition ON, observe the scan tool EBCM Battery Positive Voltage parameter.
  3. Verify that battery terminal voltage and Battery Positive Voltage parameter readings do not differ by more than 2 volts.
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