P0A94 / INF557

P0A94-557

Description
For a description of the boost converter, (See HBC-368, "Description"). P0A94 / INF442
If MG ECU detects overheat or circuit malfunction of the boost converter, the inverter assembly transmits this information via the boost converter fail signal line.

DTC Logic

DTC Detection Logic
If MG ECU detects overheat or circuit malfunction of the boost converter, the inverter assembly transmits this information via the boost converter fail signal line.

If the boost converter detects a circuit malfunction, it transmits a boost converter fail signal to the MG ECU. Upon receiving this signal, the hybrid vehicle control ECU will illuminate the MIL and set a DTC.






Diagnostic Procedure

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