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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 271 (Lighting System - DTC B0655 To DTC B3890) >> Diagnostic Information and Procedures >> DTC B0984 or B0985: Headlamp Light Distribution Shutter Control >> Conditions for Setting the DTC

Conditions for Setting the DTC

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.

DTC B0984 00 

The headlamp control module detects an internal malfunction in the left high beam solenoid actuator.

DTC B0985 00 

The headlamp control module detects an internal malfunction in the right high beam solenoid actuator.

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