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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 41 (Dynamic Radar Cruise Control System (HV) - Diagnostic Codes & Circuit Tests) >> DYNAMIC RADAR CRUISE CONTROL SYSTEM (for HV Model) >> DTC U0594-81: Invalid Data Received from Hybrid Powertrain Control Module Invalid Serial Data Received [11/2023 - ] >> Description

DTC U0594-81: Invalid Data Received from Hybrid Powertrain Control Module Invalid Serial Data Received [11/2023 - ]: Description

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If the hybrid vehicle control ECU cannot recognize the forward recognition camera. DTC U0594-81 is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from
U0594-81 Invalid Data Received from Hybrid Powertrain Control Module Invalid Serial Data Received Approximately 17 seconds or more after the ignition switch is turned to ON, the hybrid vehicle control ECU cannot recognize the forward recognition camera for approximately 2 seconds or more. Hybrid vehicle control ECU Radar Cruise 2