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Home >> Chevrolet >> 2011 >> Volt >> Repair and Diagnosis >> External Pages >> Different car >> Section 20 (Cellular System, Entertainment System, And Navigation System) >> Diagnostic Information and Procedures >> Radio Information Display Malfunction - DTC U0257 >> Circuit/System Verification

Circuit/System Verification

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  1. Verify DTC B1265 is not set.
    • If DTC B1265 is not set. 
  2. Vehicle in Service Mode, radio ON.
  3. Verify the P17 info display module turns on and information is shown on the display.
    • If the P17 info display module does not turn on, or information is not shown in the display. 

      Refer to Circuit/System Testing

    • If the P17 info display module turns on and information is shown on the display. 
  4. All OK.
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