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Home >> Chevrolet >> 2020 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 113 (Data Communication System - Diagnostic Information And Procedures (1 Of 2)) >> Diagnostic Information and Procedures >> DTC U0400 - U05FF >> Circuit/System Description

Circuit/System Description

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Some devices are constantly receiving information from other devices through serial data communication network. The invalid data code will be set when a receiving device detects a discrepancy in information it receives from another device causing its integrity to be questioned. The symptom byte listed in the DTC Descriptor is for engineering reference only. No external circuit diagnosis is involved.

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