DTC Summary

The hybrid vehicle control ECU detects malfunctions which prevent the inverter with converter assembly emergency shut down circuit (HSDN) from shutting down the hybrid control system. Detection is performed when the power switch is turned on (IG) and during the shut down sequence when the power switch is turned off.

The cause of this malfunction may be one of the following:

Hybrid vehicle control ECU and inverter with converter assembly shutdown circuit malfunction 

• Hybrid vehicle control ECU malfunction
• Connector or wire harness malfunction (between hybrid vehicle control ECU and inverter with converter assembly) malfunction
• Inverter with converter assembly malfunction