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Home >> Chevrolet >> 2019 >> Sonic LS, Automatic Trans >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Secondary And Configurable Customer Controls >> Diagnostic Information and Procedures >> DTC B1405 >> Circuit/System Verification

Circuit/System Verification

  1. Engine running, accessories OFF, measure and record the battery voltage at the battery terminals.
  2. Verify the voltage measured at the battery terminals is between 12.6 - 15.0 V.
    • Go to next step: If between 12.6 - 15.0 V 
  3. Refer to Circuit/System Testing.