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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 79 (HVAC - Manual) >> Diagnostic Information and Procedures >> DTC B0455 or B0457 >> Circuit/System Verification

Circuit/System Verification

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Engine running, observe the scan tool Coolant Temp. Sensor parameter. The parameter should be between 0.09 - 4.9 volts.