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Home >> Chevrolet >> 2005 >> Impala SS >> Repair and Diagnosis >> External Pages >> Different car >> Section 945 (Hybrid Engine Control System) >> Diagnostic Information and Procedures >> DTC P0AF8 or P0AFB >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2008 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.

P0AF8

  1. If DTC is history, refer to Testing for Intermittent Conditions and Poor Connections .
  2. Ignition ON, observe the scan tool Hybrid Battery System Voltage parameter in the BECM data list and the Hybrid System Voltage parameter in the SGCM data list. The voltage should not differ by more than 5 volts.
    • If greater than the specified value, continue with Circuit/System Testing.

P0AFB

  1. If DTC is history, refer to Testing for Intermittent Conditions and Poor Connections .
  2. Ignition ON, observe the scan tool Hybrid Battery System Voltage parameter in the BECM data list. The voltage should be less than 50 volts.
    • If greater than the specified value, replace the SGCM.
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