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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 159 (Suspension Controls System) >> Diagnostic Information and Procedures >> DTC C1034-C1037 >> Circuit/System Description

Circuit/System Description

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.

The K19 Suspension Control Module commands variable levels of current to each Q37 Shock Absorber Actuator in response to rough road, braking or abrupt steering maneuver driving conditions. The current variation is performed by pulse width modulation (PWM) of the system voltage. The K19 Suspension Control Module continuously measures the actual current of each actuator. When a deviation between commanded and actual current is detected, a DTC is set.

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