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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1418 (HVAC Systems - Automatic) >> Diagnostic Information and Procedures >> DTC B0150, B0433, OR B3782: Feedback Circuit Malfunction >> Circuit/System Verification

Circuit/System Verification

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Ignition ON, command the appropriate actuator in both directions with a scan tool. The scan tool door position parameter reading should be between 3 and 253 counts.

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