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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 77 (Motor Generator Control System (AWD) - Diagnostic Codes (5 Of 5)) >> MOTOR GENERATOR CONTROL SYSTEM (for AWD) >> DTC P1CAC-49: Generator Position Sensor Internal Electronic Failure; DTC P1C64-1F: Generator Control Module Circuit Intermittent; DTC P1CAF-38: Generator Position Sensor REF Signal Cycle Malfunction Signal Frequency Incorrect [12/2019 - 11/2023] >> Monitor Description

Monitor Description

WARNING: This page is about a different variant/trim than selected.

The motor generator control ECU performs diagnostic tests to verify proper operation of internal ECU systems. In this diagnostic monitor, the motor generator control ECU checks for an R/D (Resolver/Digital Converter) malfunction involving the generator resolver. If motor generator control ECU detects an R/D error, it will conclude that there is an internal malfunction involving the generator resolver. The motor generator control ECU will illuminate the MIL and set a DTC.

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