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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 67 (Hybrid Control System (AWD) - Diagnostic Codes (1 Of 6)) >> HYBRID CONTROL SYSTEM (for AWD) >> DTC P0A1B-94: Drive Motor "A" Control Module Unexpected Operation [12/2019 - 11/2023] >> Description

DTC P0A1B-94: Drive Motor "A" Control Module Unexpected Operation [12/2019 - 11/2023]: Description

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

The hybrid vehicle control ECU monitors the motor generator control ECU (MG ECU) and stores this DTC when it detects a malfunction.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P0A1B-94 Drive Motor "A" Control Module Unexpected Operation The motor generator control ECU (MG ECU) value received by the hybrid vehicle control ECU exceeds the threshold for a certain period of time.
(1 trip detection logic)
  • Inverter with converter assembly
  • IGCT relay
  • IGCT-IG fuse
Comes on Master Warning:
Comes on