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Home >> Toyota >> 2016 >> Highlander Hybrid Limited >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System (2GR-FXE) - Diagnostic Codes (6 Of 7) >> Hybrid Control System >> DTC P0A79-694: Drive Motor "B" Inverter Performance; DTC P0A79-813: Drive Motor "B" Inverter Performance [02/2014 - 11/2016] >> Description

DTC P0A79-694: Drive Motor "B" Inverter Performance; DTC P0A79-813: Drive Motor "B" Inverter Performance [02/2014 - 11/2016]: Description

For a description of the inverter.

Refer to DESCRIPTION 

If the rear motor inverter overheats, has a circuit malfunction or internal short, the inverter transmits this information to the MG ECU via the rear motor inverter fail signal line.

If an abnormal amount of current flows through the rear motor inverter, the MG ECU detects it and sends a signal to inform the power management control ECU of the malfunction.

HINT: 

The term "drive motor B" indicates the rear motor (MGR).

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P0A79-694 Drive Motor "B" Inverter Performance Rear motor inverter fail signal detected
(overcurrent due to rear motor inverter malfunction)*
(1 trip detection logic)
  • Inverter with converter assembly
  • Wire harness or connector
Comes on Master Warning Light:
Comes on
P0A79-813 Drive Motor "B" Inverter Performance Abnormal rear motor (MGR) current value detected
(rear inverter malfunction)
(1 trip detection logic)
  • Inverter with converter assembly
  • Wire harness or connector
Comes on Master Warning Light:
Comes on

*: The inverter with converter assembly is suspected to be the main cause of the malfunction.