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Home >> GMC >> 2024 >> Sierra EV >> Repair and Diagnosis >> Electrical >> Charging Systems >> Plug-In Charging >> Diagnostic Information and Procedures >> DTC P2E84 - P2E86 >> Circuit/System Description

Circuit/System Description

The T18B Battery Charger 2 (K57B Battery Charger Control Module 2) is the secondary high voltage charger. The T18B Battery Charger 2 supplements the T18 Battery Charger when sufficient level 2 (AC) electrical current is available.

The T18B Battery Charger 2 (K57B Battery Charger Control Module 2) contains an internal sensor array which reports charger data and diagnostics to the K16 Battery Energy Control Module through serial data.