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Home >> Chevrolet >> 2020 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 83 (Data Communication System - Diagnostic Information And Procedures (2 Of 2)) >> Diagnostic Information and Procedures >> DTC U1845 or U1846 >> Circuit/System Description

Circuit/System Description

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The K107 Drive Motor Control Modules and the K114A Hybrid/EV Powertrain Control Module 1 are all internal to the T6 Power Inverter Module. The K107 Drive Motor Control Modules communicate only with the K114A Hybrid/EV Powertrain Control Module 1 which sends out diagnostic trouble code information to other devices regarding the K107 Drive Motor Control Modules. All circuits to the K114A Hybrid/EV Powertrain Control Module 1 and K107 Drive Motor Control Modules are also internal to the T6 Power Inverter Module and replaced as a single component.

Communication diagnostics for the serial data, including device power and ground as well as the wakeup circuits for K107 Drive Motor Control Modules and the K114A Hybrid/EV Powertrain Control Module 1 are all diagnosed from external sources only to the T6 Power Inverter Module connector because any circuit fault condition within the T6 Power Inverter Module will cause a complete replacement.

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