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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 995 (HVAC Systems - Automatic) >> Diagnostic Information and Procedures >> DTC B013A: Air Conditioning (A/C) System Performance >> Diagnostic Aids

Diagnostic Aids

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

If the vehicle is under extreme load-such as extended idles at hot ambient or an intermittent failure with the blower system or A/C system This may cause the DTC to set if the failure has been present for more than 30 minutes on one ignition cycle.