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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 231 (HVAC - Automatic) >> Diagnostic Information and Procedures >> DTC B2AFF-B2B01 (L3B, LSY) >> Conditions for Setting the DTC

Conditions for Setting the DTC

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.

B2AFF 

The difference between the commanded speed and the speed feedback signal is 20% or greater.

or

Circuit 754 is shorted to ground with HVAC system ON

B2B00 

Circuit 754 is open or shorted to voltage

B2B01 

Circuit 754 is shorted to ground with HVAC system OFF

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