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Home >> Toyota >> 2022 >> Avalon XLE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Dynamic Radar Cruise Control System - Diagnostic Codes & Circuit Tests (Hybrid)) >> DYNAMIC RADAR CRUISE CONTROL SYSTEM (for HV Model) >> DTC C1A52: Driving Support ECU Communication Abnormal [04/2018 - 08/2021] >> Description

DTC C1A52: Driving Support ECU Communication Abnormal [04/2018 - 08/2021]: Description

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The DTC C1A52 is stored when the Hybrid vehicle control ECU cannot recognize the driving support ECU assembly.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL
C1A52 Driving Support ECU Communication Abnormal Approximately 17 seconds after the power switch is turned on (IG), the Hybrid vehicle control ECU cannot recognize the driving support ECU assembly for approximately 1.3 seconds or more. Hybrid vehicle control ECU Does not come on