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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 83 (Wiper System And Washer System) >> Diagnostic Information and Procedures >> DTC B12FA >> 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.

B12FA 12 

The K219 Lighting Control Module detects a short to B+ in the windshield washer pump relay control circuit.

B12FA 11 

The K219 Lighting Control Module detects a short to ground in the windshield washer pump relay control circuit.

B12FA 13 

The K219 Lighting Control Module detects an open or high resistance in the windshield washer pump relay control circuit.

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