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Home >> Hyundai >> 2017 >> Sonata Plug-In Hybrid >> Repair and Diagnosis >> External Pages >> Different car >> Section 130 (Active Hydraulic Booster (AHB) System Diagnosis (HEV)) >> DTC C2112: Valve Relay Error >> General Information >> General Description

General Information: General Description

WARNING: This page is about a different car, the 2015 Hyundai Sonata. However, it is still accessible from the selected car via links, so may be relevant.

The AHB ECU (Electronic Control Unit) supplies battery power to all solenoid valves with a valve relay which is controlled by the Electronic Control UNIT (ECU).

The valve relay and all solenoid valves are installed inside the HPU (Hydraulic Power Unit).

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